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lastleg/src/main/java/com/baiyue/lastleg/dispatch/DispatchMapperConfiguration.java

@@ -0,0 +1,9 @@
+package com.baiyue.lastleg.dispatch;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@MapperScan("com.baiyue.lastleg.dispatch.mapper")
+public class DispatchMapperConfiguration {
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/controller/DispatchController.java

@@ -0,0 +1,124 @@
+package com.baiyue.lastleg.dispatch.controller;
+
+import com.baiyue.common.core.api.ApiResponse;
+import com.baiyue.common.core.api.PageResult;
+import com.baiyue.common.security.AuthenticatedUser;
+import com.baiyue.lastleg.dispatch.dto.DispatchRequests;
+import com.baiyue.lastleg.dispatch.dto.DispatchResponse;
+import com.baiyue.lastleg.dispatch.model.DispatchPalletCandidate;
+import com.baiyue.lastleg.dispatch.pda.dto.DispatchPdaRequests;
+import com.baiyue.lastleg.dispatch.pda.dto.DispatchPdaResponses;
+import com.baiyue.lastleg.dispatch.pda.service.DispatchPdaWorkflowService;
+import com.baiyue.lastleg.dispatch.service.DispatchService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.annotation.Resource;
+import jakarta.validation.Valid;
+import org.springframework.http.HttpStatus;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/api/platform/v1/last-leg/dispatches")
+@Tag(name = "Tail-leg vehicle dispatch")
+public class DispatchController {
+    @Resource private DispatchService service;
+    @Resource private DispatchPdaWorkflowService pdaWorkflow;
+
+    @GetMapping("/candidates")
+    @Operation(summary = "List unlocked planned or received pallets for intelligent pre-dispatch")
+    public ApiResponse<List<DispatchPalletCandidate>> candidates(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String tenantId,
+        @RequestParam(required = false) String orderNo,
+        @RequestParam(required = false) String fbaWarehouseCode,
+        @RequestParam(required = false) String sourceStage) {
+        return ApiResponse.success(service.candidates(scope(user, tenantId), orderNo, fbaWarehouseCode, sourceStage));
+    }
+
+    @PostMapping("/pre-arrange")
+    @Operation(summary = "Create a pending-departure dispatch and lock all selected pallets")
+    public ApiResponse<DispatchResponse> preArrange(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String tenantId,
+        @Valid @RequestBody DispatchRequests.PreArrange request) {
+        String scopedTenant = scope(user, tenantId);
+        String operatorId = user.userId() == null ? user.username() : String.valueOf(user.userId());
+        return ApiResponse.success(service.preArrange(scopedTenant, operatorId, request));
+    }
+
+    @GetMapping
+    @Operation(summary = "Page dispatch orders")
+    public ApiResponse<PageResult<DispatchResponse>> page(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String tenantId,
+        @Valid DispatchRequests.Query query) {
+        return ApiResponse.success(service.page(scope(user, tenantId), query));
+    }
+
+    @GetMapping("/{dispatchNo}")
+    @Operation(summary = "Get dispatch details and all pallet destinations")
+    public ApiResponse<DispatchResponse> detail(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String tenantId,
+        @PathVariable String dispatchNo) {
+        return ApiResponse.success(service.detail(scope(user, tenantId), dispatchNo));
+    }
+
+    @PutMapping("/{dispatchNo}")
+    @Operation(summary = "Edit vehicle, driver, appointment, route and departure data")
+    public ApiResponse<DispatchResponse> update(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String tenantId,
+        @PathVariable String dispatchNo,
+        @Valid @RequestBody DispatchRequests.Update request) {
+        return ApiResponse.success(service.update(scope(user, tenantId), dispatchNo, request));
+    }
+
+    @DeleteMapping("/{dispatchNo}")
+    @Operation(summary = "Cancel a pending dispatch and release its pallet locks")
+    public ApiResponse<Void> cancel(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String tenantId,
+        @PathVariable String dispatchNo) {
+        service.cancel(scope(user, tenantId), dispatchNo);
+        return ApiResponse.success(null);
+    }
+
+    @PostMapping("/{dispatchNo}/depart")
+    @Operation(summary = "Ship all PDA-picked pallets and mark the dispatch departed")
+    public ApiResponse<DispatchPdaResponses.Departed> depart(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String tenantId,
+        @PathVariable String dispatchNo,
+        @Valid @RequestBody DispatchPdaRequests.Depart request) {
+        String scopedTenant = scope(user, tenantId);
+        String operatorId = user.userId() == null ? user.username() : String.valueOf(user.userId());
+        return ApiResponse.success(pdaWorkflow.depart(scopedTenant, dispatchNo, operatorId, request));
+    }
+
+    private String scope(AuthenticatedUser user, String requestedTenant) {
+        if (user == null || user.tenantId() == null) {
+            throw new ResponseStatusException(HttpStatus.UNAUTHORIZED);
+        }
+        if ("PLATFORM".equals(user.appCode()) && user.tenantId() == 0L) {
+            if (requestedTenant == null || requestedTenant.isBlank() || "0".equals(requestedTenant)) {
+                throw new ResponseStatusException(HttpStatus.BAD_REQUEST,
+                    "Platform request must specify target tenant");
+            }
+            return requestedTenant;
+        }
+        return String.valueOf(user.tenantId());
+    }
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/dto/DispatchRequests.java

@@ -0,0 +1,35 @@
+package com.baiyue.lastleg.dispatch.dto;
+
+import jakarta.validation.constraints.Max;
+import jakarta.validation.constraints.Min;
+import jakarta.validation.constraints.NotEmpty;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+public final class DispatchRequests {
+    private DispatchRequests() {
+    }
+
+    public record Query(@Min(1) long page, @Min(1) @Max(200) long size, String dispatchNo,
+                        String vehiclePlate, String status, String fbaAppointmentNo) {
+        public Query { if (page == 0) page = 1; if (size == 0) size = 20; }
+    }
+
+    public record PreArrange(@NotEmpty @Size(max = 500) List<@NotNull Long> planPalletIds,
+                             @Size(max = 255) String route, @Size(max = 64) String fbaAppointmentNo,
+                             @Size(max = 32) String fbaAppointmentStatus,
+                             @Size(max = 32) String vehicleAppointmentStatus) {
+    }
+
+    public record Update(@Size(max = 64) String vehiclePlate, @Size(max = 128) String driverName,
+                         @Size(max = 64) String driverPhone, @Size(max = 255) String carrierName,
+                         @Size(max = 255) String route, LocalDateTime departAt,
+                         @Size(max = 64) String fbaAppointmentNo,
+                         @Size(max = 32) String fbaAppointmentStatus,
+                         @Size(max = 32) String vehicleAppointmentStatus,
+                         LocalDateTime estimatedArrivalAt, @Size(max = 32) String status) {
+    }
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/dto/DispatchResponse.java

@@ -0,0 +1,18 @@
+package com.baiyue.lastleg.dispatch.dto;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.List;
+
+public record DispatchResponse(Long id, String dispatchNo, String vehiclePlate, String driverName,
+                               String driverPhone, String carrierName, String orderNos, String route,
+                               LocalDateTime departAt, String fbaAppointmentNo, String fbaAppointmentStatus,
+                               String vehicleAppointmentStatus, LocalDateTime estimatedArrivalAt, String status,
+                               int itemCount, int palletCount, int packageCount, LocalDateTime createdAt,
+                               List<Item> items) {
+    public record Item(Long id, Long planPalletId, Long warehousePalletId, String palletNo,
+                       String orderNo, String orderRefs, String inboundCode, String destinationWarehouseCode,
+                       String destinationWarehouseName, String fbaWarehouseCode, int packageCount,
+                       BigDecimal volumeCbm, String sourceStage) {
+    }
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/entity/DispatchItem.java

@@ -0,0 +1,36 @@
+package com.baiyue.lastleg.dispatch.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+/** Immutable pallet/cargo snapshot selected into a dispatch order. */
+@Data
+@TableName("ll_dispatch_item")
+public class DispatchItem {
+    @TableId(type = IdType.INPUT)
+    private Long id;
+    private Long dispatchOrderId;
+    private String tenantId;
+    private Long planId;
+    private Long planPalletId;
+    private Long warehousePalletId;
+    private Long orderId;
+    private String orderNo;
+    private String orderRefs;
+    private String inboundCode;
+    private String palletNo;
+    private String destinationWarehouseId;
+    private String destinationWarehouseCode;
+    private String destinationWarehouseName;
+    private String fbaWarehouseCode;
+    private Integer packageCount;
+    private BigDecimal volumeCbm;
+    /** PLAN for planned pallets; RECEIVED for warehouse/entity pallets. */
+    private String sourceStage;
+    private LocalDateTime createdAt;
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/entity/DispatchOrder.java

@@ -0,0 +1,35 @@
+package com.baiyue.lastleg.dispatch.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+/** Header for a pre-dispatched vehicle load. Vehicle information remains editable before departure. */
+@Data
+@TableName("ll_dispatch_order")
+public class DispatchOrder {
+    @TableId(type = IdType.INPUT)
+    private Long id;
+    private String tenantId;
+    private String dispatchNo;
+    private String vehiclePlate;
+    private String driverName;
+    private String driverPhone;
+    private String carrierName;
+    private String route;
+    private LocalDateTime departAt;
+    private String fbaAppointmentNo;
+    private String fbaAppointmentStatus;
+    private String vehicleAppointmentStatus;
+    private LocalDateTime estimatedArrivalAt;
+    private String status;
+    private Integer itemCount;
+    private Integer palletCount;
+    private Integer packageCount;
+    private String createdBy;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/entity/DispatchPalletLock.java

@@ -0,0 +1,29 @@
+package com.baiyue.lastleg.dispatch.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+/** Prevents a source pallet from being added to more than one active dispatch order. */
+@Data
+@TableName("ll_dispatch_pallet_lock")
+public class DispatchPalletLock {
+    @TableId(type = IdType.INPUT)
+    private Long id;
+    private String tenantId;
+    private String sourcePalletKey;
+    /** Equals sourcePalletKey while ACTIVE and is null after release; unique index enforces exclusivity. */
+    private String activeKey;
+    private Long planId;
+    private Long planPalletId;
+    private Long warehousePalletId;
+    private Long dispatchOrderId;
+    private String status;
+    private LocalDateTime lockedAt;
+    private LocalDateTime releasedAt;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/mapper/DispatchCandidateMapper.java

@@ -0,0 +1,66 @@
+package com.baiyue.lastleg.dispatch.mapper;
+
+import com.baiyue.lastleg.dispatch.model.DispatchPalletCandidate;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+@Mapper
+public interface DispatchCandidateMapper {
+    @Select("<script>" +
+        "SELECT p.plan_id AS planId,p.id AS planPalletId,p.warehouse_pallet_id AS warehousePalletId," +
+        "MIN(l.order_id) AS orderId,MIN(o.order_no) AS orderNo," +
+        "GROUP_CONCAT(DISTINCT o.order_no ORDER BY o.order_no SEPARATOR ',') AS orderRefs,MIN(l.inbound_code) AS inboundCode," +
+        "p.pallet_no AS palletNo,p.destination_warehouse_id AS destinationWarehouseId," +
+        "p.destination_warehouse_code AS destinationWarehouseCode,p.destination_warehouse_name AS destinationWarehouseName," +
+        "MIN(l.fba_warehouse_code) AS fbaWarehouseCode," +
+        "COALESCE(SUM(CASE WHEN a.picked_package_count &gt; 0 THEN a.picked_package_count " +
+        "ELSE a.planned_package_count END),0) AS packageCount,p.allocated_volume_cbm AS volumeCbm," +
+        "CASE WHEN p.warehouse_pallet_id IS NULL THEN 'PLAN' ELSE 'RECEIVED' END AS sourceStage " +
+        "FROM ll_inbound_plan_pallet p JOIN ll_inbound_plan ip ON ip.id=p.plan_id " +
+        "LEFT JOIN ll_inbound_plan_pallet_allocation a ON a.pallet_id=p.id " +
+        "LEFT JOIN ll_inbound_plan_line l ON l.id=a.line_id " +
+        "LEFT JOIN ll_order o ON o.id=l.order_id " +
+        "WHERE ip.tenant_id=#{tenantId} " +
+        "<if test='orderNo != null and orderNo != \"\"'> AND o.order_no LIKE CONCAT('%',#{orderNo},'%')</if> " +
+        "<if test='fbaWarehouseCode != null and fbaWarehouseCode != \"\"'> AND l.fba_warehouse_code=#{fbaWarehouseCode}</if> " +
+        "<if test='sourceStage != null and sourceStage != \"\"'> AND " +
+        "CASE WHEN p.warehouse_pallet_id IS NULL THEN 'PLAN' ELSE 'RECEIVED' END=#{sourceStage}</if> " +
+        "AND NOT EXISTS (SELECT 1 FROM ll_dispatch_pallet_lock d " +
+        "WHERE d.tenant_id=ip.tenant_id AND d.status='ACTIVE' AND (" +
+        "d.source_pallet_key=CONCAT('PLAN:',p.id) OR (p.warehouse_pallet_id IS NOT NULL AND " +
+        "d.source_pallet_key=CONCAT('RECEIVED:',p.warehouse_pallet_id)))) " +
+        "GROUP BY p.plan_id,p.id,p.warehouse_pallet_id,p.pallet_no,p.destination_warehouse_id," +
+        "p.destination_warehouse_code,p.destination_warehouse_name,p.allocated_volume_cbm " +
+        "ORDER BY p.plan_id,p.sequence_no" +
+        "</script>")
+    List<DispatchPalletCandidate> available(@Param("tenantId") String tenantId,
+                                            @Param("orderNo") String orderNo,
+                                            @Param("fbaWarehouseCode") String fbaWarehouseCode,
+                                            @Param("sourceStage") String sourceStage);
+
+    @Select("<script>" +
+        "SELECT p.plan_id AS planId,p.id AS planPalletId,p.warehouse_pallet_id AS warehousePalletId," +
+        "MIN(l.order_id) AS orderId,MIN(o.order_no) AS orderNo," +
+        "GROUP_CONCAT(DISTINCT o.order_no ORDER BY o.order_no SEPARATOR ',') AS orderRefs,MIN(l.inbound_code) AS inboundCode," +
+        "p.pallet_no AS palletNo,p.destination_warehouse_id AS destinationWarehouseId," +
+        "p.destination_warehouse_code AS destinationWarehouseCode,p.destination_warehouse_name AS destinationWarehouseName," +
+        "MIN(l.fba_warehouse_code) AS fbaWarehouseCode," +
+        "COALESCE(SUM(CASE WHEN a.picked_package_count &gt; 0 THEN a.picked_package_count " +
+        "ELSE a.planned_package_count END),0) AS packageCount,p.allocated_volume_cbm AS volumeCbm," +
+        "CASE WHEN p.warehouse_pallet_id IS NULL THEN 'PLAN' ELSE 'RECEIVED' END AS sourceStage " +
+        "FROM ll_inbound_plan_pallet p JOIN ll_inbound_plan ip ON ip.id=p.plan_id " +
+        "LEFT JOIN ll_inbound_plan_pallet_allocation a ON a.pallet_id=p.id " +
+        "LEFT JOIN ll_inbound_plan_line l ON l.id=a.line_id " +
+        "LEFT JOIN ll_order o ON o.id=l.order_id " +
+        "WHERE ip.tenant_id=#{tenantId} AND p.id IN " +
+        "<foreach collection='planPalletIds' item='id' open='(' separator=',' close=')'>#{id}</foreach> " +
+        "GROUP BY p.plan_id,p.id,p.warehouse_pallet_id,p.pallet_no,p.destination_warehouse_id," +
+        "p.destination_warehouse_code,p.destination_warehouse_name,p.allocated_volume_cbm " +
+        "ORDER BY p.id FOR UPDATE" +
+        "</script>")
+    List<DispatchPalletCandidate> lockSelected(@Param("tenantId") String tenantId,
+                                                @Param("planPalletIds") List<Long> planPalletIds);
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/mapper/DispatchItemMapper.java

@@ -0,0 +1,25 @@
+package com.baiyue.lastleg.dispatch.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.dispatch.entity.DispatchItem;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+import org.apache.ibatis.annotations.Update;
+
+import java.util.List;
+
+@Mapper
+public interface DispatchItemMapper extends BaseMapper<DispatchItem> {
+    @Select("SELECT * FROM ll_dispatch_item WHERE tenant_id=#{tenantId} AND dispatch_order_id=#{dispatchOrderId} ORDER BY id")
+    List<DispatchItem> findByDispatchOrder(@Param("tenantId") String tenantId,
+                                           @Param("dispatchOrderId") Long dispatchOrderId);
+
+    @Update("UPDATE ll_dispatch_item i JOIN ll_inbound_plan_pallet p ON p.id=i.plan_pallet_id " +
+        "JOIN ll_inbound_plan ip ON ip.id=p.plan_id AND ip.tenant_id=i.tenant_id " +
+        "SET i.warehouse_pallet_id=p.warehouse_pallet_id,i.source_stage='RECEIVED' " +
+        "WHERE i.tenant_id=#{tenantId} AND i.dispatch_order_id=#{dispatchOrderId} " +
+        "AND i.warehouse_pallet_id IS NULL AND p.warehouse_pallet_id IS NOT NULL")
+    int bindReceivedPallets(@Param("tenantId") String tenantId,
+                            @Param("dispatchOrderId") Long dispatchOrderId);
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/mapper/DispatchOrderMapper.java

@@ -0,0 +1,16 @@
+package com.baiyue.lastleg.dispatch.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.dispatch.entity.DispatchOrder;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+@Mapper
+public interface DispatchOrderMapper extends BaseMapper<DispatchOrder> {
+    @Select("SELECT * FROM ll_dispatch_order WHERE tenant_id=#{tenantId} AND dispatch_no=#{dispatchNo} LIMIT 1")
+    DispatchOrder findByDispatchNo(@Param("tenantId") String tenantId, @Param("dispatchNo") String dispatchNo);
+
+    @Select("SELECT * FROM ll_dispatch_order WHERE tenant_id=#{tenantId} AND id=#{id} LIMIT 1 FOR UPDATE")
+    DispatchOrder lockById(@Param("tenantId") String tenantId, @Param("id") Long id);
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/mapper/DispatchPalletLockMapper.java

@@ -0,0 +1,15 @@
+package com.baiyue.lastleg.dispatch.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.dispatch.entity.DispatchPalletLock;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+@Mapper
+public interface DispatchPalletLockMapper extends BaseMapper<DispatchPalletLock> {
+    @Select("SELECT * FROM ll_dispatch_pallet_lock WHERE tenant_id=#{tenantId} AND source_pallet_key=#{sourcePalletKey} " +
+        "AND status='ACTIVE' LIMIT 1 FOR UPDATE")
+    DispatchPalletLock lockActive(@Param("tenantId") String tenantId,
+                                  @Param("sourcePalletKey") String sourcePalletKey);
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/model/DispatchPalletCandidate.java

@@ -0,0 +1,26 @@
+package com.baiyue.lastleg.dispatch.model;
+
+import java.math.BigDecimal;
+
+public record DispatchPalletCandidate(
+    Long planId,
+    Long planPalletId,
+    Long warehousePalletId,
+    Long orderId,
+    String orderNo,
+    String orderRefs,
+    String inboundCode,
+    String palletNo,
+    String destinationWarehouseId,
+    String destinationWarehouseCode,
+    String destinationWarehouseName,
+    String fbaWarehouseCode,
+    Integer packageCount,
+    BigDecimal volumeCbm,
+    String sourceStage
+) {
+    public String sourcePalletKey() {
+        // A plan pallet keeps the same lock identity before and after the physical pallet is received.
+        return planPalletId != null ? "PLAN:" + planPalletId : "RECEIVED:" + warehousePalletId;
+    }
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/pda/DispatchPdaMapperConfiguration.java

@@ -0,0 +1,8 @@
+package com.baiyue.lastleg.dispatch.pda;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@MapperScan("com.baiyue.lastleg.dispatch.pda.mapper")
+public class DispatchPdaMapperConfiguration {}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/pda/controller/DispatchPdaController.java

@@ -0,0 +1,51 @@
+package com.baiyue.lastleg.dispatch.pda.controller;
+
+import com.baiyue.common.core.api.ApiResponse;
+import com.baiyue.common.security.AuthenticatedUser;
+import com.baiyue.lastleg.dispatch.pda.dto.DispatchPdaRequests;
+import com.baiyue.lastleg.dispatch.pda.dto.DispatchPdaResponses;
+import com.baiyue.lastleg.dispatch.pda.service.DispatchPdaWorkflowService;
+import jakarta.annotation.Resource;
+import jakarta.validation.Valid;
+import org.springframework.http.HttpStatus;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.server.ResponseStatusException;
+
+@RestController
+@RequestMapping("/api/platform/v1/last-leg/dispatches/{dispatchNo}/pda")
+public class DispatchPdaController {
+    @Resource private DispatchPdaWorkflowService service;
+
+    @PostMapping("/push")
+    public ApiResponse<DispatchPdaResponses.Task> push(@AuthenticationPrincipal AuthenticatedUser user,
+                                                       @PathVariable String dispatchNo,
+                                                       @RequestParam(required = false) String tenantId,
+                                                       @Valid @RequestBody DispatchPdaRequests.Push request) {
+        return ApiResponse.success(service.push(scope(user, tenantId), dispatchNo, request));
+    }
+    @GetMapping
+    public ApiResponse<DispatchPdaResponses.Task> task(@AuthenticationPrincipal AuthenticatedUser user,
+                                                       @PathVariable String dispatchNo,
+                                                       @RequestParam(required = false) String tenantId) {
+        return ApiResponse.success(service.task(scope(user, tenantId), dispatchNo));
+    }
+    @PostMapping("/items/{itemId}/pick")
+    public ApiResponse<DispatchPdaResponses.Picked> pick(@AuthenticationPrincipal AuthenticatedUser user,
+                                                          @PathVariable String dispatchNo, @PathVariable long itemId,
+                                                          @RequestParam(required = false) String tenantId,
+                                                          @Valid @RequestBody DispatchPdaRequests.Pick request) {
+        return ApiResponse.success(service.pick(scope(user, tenantId), dispatchNo, itemId, operator(user), request));
+    }
+    private String scope(AuthenticatedUser user, String requestedTenant) {
+        if (user == null || user.tenantId() == null) throw new ResponseStatusException(HttpStatus.UNAUTHORIZED);
+        if ("PLATFORM".equals(user.appCode()) && user.tenantId() == 0L) {
+            if (requestedTenant == null || requestedTenant.isBlank() || "0".equals(requestedTenant)) {
+                throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Platform request must specify target tenant");
+            }
+            return requestedTenant.trim();
+        }
+        return String.valueOf(user.tenantId());
+    }
+    private String operator(AuthenticatedUser user) { return user.userId() == null ? user.username() : String.valueOf(user.userId()); }
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/pda/dto/DispatchPdaRequests.java

@@ -0,0 +1,14 @@
+package com.baiyue.lastleg.dispatch.pda.dto;
+
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Positive;
+import jakarta.validation.constraints.PositiveOrZero;
+
+public final class DispatchPdaRequests {
+    private DispatchPdaRequests() {}
+    public record Push(@NotBlank String idempotencyKey, String operatorId, String operatorName) {}
+    public record Pick(@NotNull Long positionId, @Positive long packages, @PositiveOrZero long productQuantity,
+                       @NotBlank String idempotencyKey, String remark) {}
+    public record Depart(@NotBlank String idempotencyKey, String remark) {}
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/pda/dto/DispatchPdaResponses.java

@@ -0,0 +1,19 @@
+package com.baiyue.lastleg.dispatch.pda.dto;
+
+import java.util.List;
+
+public final class DispatchPdaResponses {
+    private DispatchPdaResponses() {}
+    public record Task(Long id, String taskNo, String dispatchNo, String vehiclePlate, String status,
+                       List<Item> items) {}
+    public record Item(Long dispatchItemId, String palletNo, String destinationWarehouseCode,
+                       String destinationWarehouseName, String fbaWarehouseCode, int scheduledPackages,
+                       long pickedPackages, List<Position> positions) {}
+    public record Position(Long id, String skuCode, long availablePackages, long allocatedPackages,
+                           long pickedPackages, long productQuantity) {}
+    public record Picked(Long dispatchItemId, Long positionId, long packages, long pickedPackages,
+                         boolean palletScrapped, boolean replayed) {}
+    public record Departed(String dispatchNo, String status, long shippedPackages, boolean replayed) {
+        public Departed withReplay() { return new Departed(dispatchNo, status, shippedPackages, true); }
+    }
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/pda/entity/DispatchPdaOperation.java

@@ -0,0 +1,23 @@
+package com.baiyue.lastleg.dispatch.pda.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+@TableName("ll_dispatch_pda_operation")
+public class DispatchPdaOperation {
+    @TableId(type = IdType.INPUT) private Long id;
+    private String tenantId;
+    private Long taskId;
+    private String operationType;
+    private String idempotencyKey;
+    private String requestHash;
+    private String resultJson;
+    private String status;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/pda/entity/DispatchPdaPick.java

@@ -0,0 +1,23 @@
+package com.baiyue.lastleg.dispatch.pda.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+@TableName("ll_dispatch_pda_pick")
+public class DispatchPdaPick {
+    @TableId(type = IdType.INPUT) private Long id;
+    private String tenantId;
+    private Long taskId;
+    private Long dispatchItemId;
+    private Long inventoryPositionId;
+    private Long packages;
+    private Long productQuantity;
+    private String idempotencyKey;
+    private LocalDateTime pickedAt;
+    private LocalDateTime createdAt;
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/pda/entity/DispatchPdaTask.java

@@ -0,0 +1,24 @@
+package com.baiyue.lastleg.dispatch.pda.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+@TableName("ll_dispatch_pda_task")
+public class DispatchPdaTask {
+    @TableId(type = IdType.INPUT) private Long id;
+    private String tenantId;
+    private Long dispatchOrderId;
+    private String taskNo;
+    private String status;
+    private String operatorId;
+    private String operatorName;
+    private LocalDateTime pushedAt;
+    private LocalDateTime completedAt;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/pda/mapper/DispatchPdaOperationMapper.java

@@ -0,0 +1,11 @@
+package com.baiyue.lastleg.dispatch.pda.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.dispatch.pda.entity.DispatchPdaOperation;
+import org.apache.ibatis.annotations.*;
+
+@Mapper
+public interface DispatchPdaOperationMapper extends BaseMapper<DispatchPdaOperation> {
+    @Select("SELECT * FROM ll_dispatch_pda_operation WHERE tenant_id=#{tenantId} AND idempotency_key=#{key} LIMIT 1")
+    DispatchPdaOperation findKey(@Param("tenantId") String tenantId, @Param("key") String key);
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/pda/mapper/DispatchPdaPickMapper.java

@@ -0,0 +1,14 @@
+package com.baiyue.lastleg.dispatch.pda.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.dispatch.pda.entity.DispatchPdaPick;
+import org.apache.ibatis.annotations.*;
+import java.util.List;
+
+@Mapper
+public interface DispatchPdaPickMapper extends BaseMapper<DispatchPdaPick> {
+    @Select("SELECT * FROM ll_dispatch_pda_pick WHERE tenant_id=#{tenantId} AND task_id=#{taskId} ORDER BY id")
+    List<DispatchPdaPick> listTask(@Param("tenantId") String tenantId, @Param("taskId") Long taskId);
+    @Select("SELECT COALESCE(SUM(packages),0) FROM ll_dispatch_pda_pick WHERE tenant_id=#{tenantId} AND task_id=#{taskId} AND dispatch_item_id=#{itemId}")
+    long totalItem(@Param("tenantId") String tenantId, @Param("taskId") Long taskId, @Param("itemId") Long itemId);
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/pda/mapper/DispatchPdaTaskMapper.java

@@ -0,0 +1,14 @@
+package com.baiyue.lastleg.dispatch.pda.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.dispatch.pda.entity.DispatchPdaTask;
+import org.apache.ibatis.annotations.*;
+
+@Mapper
+public interface DispatchPdaTaskMapper extends BaseMapper<DispatchPdaTask> {
+    @Select("SELECT * FROM ll_dispatch_pda_task WHERE tenant_id=#{tenantId} AND dispatch_order_id=#{dispatchOrderId} LIMIT 1 FOR UPDATE")
+    DispatchPdaTask lockByDispatch(@Param("tenantId") String tenantId, @Param("dispatchOrderId") Long dispatchOrderId);
+
+    @Select("SELECT * FROM ll_dispatch_pda_task WHERE tenant_id=#{tenantId} AND dispatch_order_id=#{dispatchOrderId} LIMIT 1")
+    DispatchPdaTask findByDispatch(@Param("tenantId") String tenantId, @Param("dispatchOrderId") Long dispatchOrderId);
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/pda/service/DispatchPdaWorkflowService.java

@@ -0,0 +1,213 @@
+package com.baiyue.lastleg.dispatch.pda.service;
+
+import com.baomidou.mybatisplus.core.toolkit.IdWorker;
+import com.baiyue.lastleg.dispatch.entity.DispatchItem;
+import com.baiyue.lastleg.dispatch.entity.DispatchOrder;
+import com.baiyue.lastleg.dispatch.entity.DispatchPalletLock;
+import com.baiyue.lastleg.dispatch.mapper.DispatchItemMapper;
+import com.baiyue.lastleg.dispatch.mapper.DispatchOrderMapper;
+import com.baiyue.lastleg.dispatch.mapper.DispatchPalletLockMapper;
+import com.baiyue.lastleg.dispatch.pda.dto.DispatchPdaRequests;
+import com.baiyue.lastleg.dispatch.pda.dto.DispatchPdaResponses;
+import com.baiyue.lastleg.dispatch.pda.entity.*;
+import com.baiyue.lastleg.dispatch.pda.mapper.*;
+import com.baiyue.lastleg.inventory.command.dto.InventoryCommandRequests;
+import com.baiyue.lastleg.inventory.command.service.InventoryCommandService;
+import com.baiyue.lastleg.inventory.entity.InventoryPosition;
+import com.baiyue.lastleg.inventory.mapper.InventoryPositionMapper;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import jakarta.annotation.Resource;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.time.LocalDateTime;
+import java.util.*;
+import java.util.stream.Collectors;
+
+@Service
+public class DispatchPdaWorkflowService {
+    @Resource private DispatchOrderMapper orders;
+    @Resource private DispatchItemMapper items;
+    @Resource private DispatchPdaTaskMapper tasks;
+    @Resource private DispatchPdaPickMapper picks;
+    @Resource private DispatchPdaOperationMapper operations;
+    @Resource private DispatchPalletLockMapper palletLocks;
+    @Resource private InventoryPositionMapper positions;
+    @Resource private InventoryCommandService inventory;
+    @Resource private ObjectMapper objectMapper;
+
+    @Transactional
+    public DispatchPdaResponses.Task push(String tenantId, String dispatchNo, DispatchPdaRequests.Push request) {
+        DispatchOrder order = requireOrder(tenantId, dispatchNo);
+        requirePdaStatus(order);
+        requireVehicle(order);
+        DispatchPdaOperation replay = replay(tenantId, "PUSH", request.idempotencyKey(), request);
+        if (replay != null) return read(replay, DispatchPdaResponses.Task.class);
+        items.bindReceivedPallets(tenantId, order.getId());
+        List<DispatchItem> dispatchItems = items.findByDispatchOrder(tenantId, order.getId());
+        if (dispatchItems.isEmpty()) throw conflict("Dispatch has no pallets to push");
+        if (dispatchItems.stream().anyMatch(item -> item.getWarehousePalletId() == null)) {
+            throw conflict("All pre-arranged pallets must be received before PDA push");
+        }
+        DispatchPdaTask task = tasks.lockByDispatch(tenantId, order.getId());
+        LocalDateTime now = LocalDateTime.now();
+        if (task == null) {
+            task = new DispatchPdaTask();
+            task.setId(IdWorker.getId()); task.setTenantId(tenantId); task.setDispatchOrderId(order.getId());
+            task.setTaskNo("DPDA" + task.getId()); task.setStatus("PDA_PENDING");
+            task.setOperatorId(trim(request.operatorId())); task.setOperatorName(trim(request.operatorName()));
+            task.setPushedAt(now); task.setCreatedAt(now); task.setUpdatedAt(now); tasks.insert(task);
+        }
+        if ("PENDING_DEPARTURE".equals(order.getStatus())) { order.setStatus("PICKING"); order.setUpdatedAt(now); orders.updateById(order); }
+        DispatchPdaResponses.Task result = task(tenantId, order, task, dispatchItems);
+        save(tenantId, task.getId(), "PUSH", request.idempotencyKey(), request, result);
+        return result;
+    }
+
+    @Transactional(readOnly = true)
+    public DispatchPdaResponses.Task task(String tenantId, String dispatchNo) {
+        DispatchOrder order = requireOrder(tenantId, dispatchNo);
+        DispatchPdaTask task = tasks.findByDispatch(tenantId, order.getId());
+        if (task == null) throw notFound("Dispatch PDA task not found");
+        return task(tenantId, order, task, items.findByDispatchOrder(tenantId, order.getId()));
+    }
+
+    @Transactional
+    public DispatchPdaResponses.Picked pick(String tenantId, String dispatchNo, long itemId,
+                                             String operatorId, DispatchPdaRequests.Pick request) {
+        DispatchOrder order = requireOrder(tenantId, dispatchNo);
+        requirePdaStatus(order);
+        requireVehicle(order);
+        DispatchPdaTask task = tasks.lockByDispatch(tenantId, order.getId());
+        if (task == null || !("PDA_PENDING".equals(task.getStatus()) || "PICKING".equals(task.getStatus()))) {
+            throw conflict("Dispatch PDA task is not available for picking");
+        }
+        DispatchItem item = items.selectById(itemId);
+        if (item == null || !tenantId.equals(item.getTenantId()) || !order.getId().equals(item.getDispatchOrderId())) {
+            throw notFound("Dispatch pallet item not found");
+        }
+        DispatchPdaOperation replay = replay(tenantId, "PICK", request.idempotencyKey(), request);
+        if (replay != null) return read(replay, DispatchPdaResponses.Picked.class);
+        InventoryPosition position = positions.selectById(request.positionId());
+        if (position == null || !tenantId.equals(position.getTenantId())
+            || item.getWarehousePalletId() == null || !item.getWarehousePalletId().equals(position.getPalletId())) {
+            throw conflict("Inventory position does not belong to this dispatch pallet");
+        }
+        long picked = picks.totalItem(tenantId, task.getId(), itemId);
+        if (picked + request.packages() > item.getPackageCount()) throw conflict("Picked packages exceed dispatch pallet packages");
+        String keyBase = "DISPATCH:" + order.getDispatchNo() + ":" + itemId + ":" + request.idempotencyKey();
+        InventoryCommandRequests.Move move = new InventoryCommandRequests.Move(tenantId, request.positionId(),
+            request.packages(), request.productQuantity(), order.getDispatchNo(), order.getDispatchNo(), null,
+            keyBase + ":ALLOCATE", request.remark());
+        inventory.allocate(tenantId, operatorId, move);
+        inventory.pick(tenantId, operatorId, new InventoryCommandRequests.Move(tenantId, request.positionId(),
+            request.packages(), request.productQuantity(), order.getDispatchNo(), order.getDispatchNo(), null,
+            keyBase + ":PICK", request.remark()));
+        DispatchPdaPick pick = new DispatchPdaPick();
+        pick.setId(IdWorker.getId()); pick.setTenantId(tenantId); pick.setTaskId(task.getId());
+        pick.setDispatchItemId(itemId); pick.setInventoryPositionId(request.positionId()); pick.setPackages(request.packages());
+        pick.setProductQuantity(request.productQuantity()); pick.setIdempotencyKey(request.idempotencyKey());
+        pick.setPickedAt(LocalDateTime.now()); pick.setCreatedAt(pick.getPickedAt()); picks.insert(pick);
+        long total = picked + request.packages();
+        task.setStatus("PICKING"); task.setUpdatedAt(LocalDateTime.now());
+        if (allPicked(tenantId, task.getId(), items.findByDispatchOrder(tenantId, order.getId()))) {
+            task.setStatus("COMPLETED"); task.setCompletedAt(LocalDateTime.now()); order.setStatus("READY_TO_DEPART");
+            order.setUpdatedAt(LocalDateTime.now()); orders.updateById(order);
+        }
+        tasks.updateById(task);
+        DispatchPdaResponses.Picked result = new DispatchPdaResponses.Picked(itemId, request.positionId(), request.packages(), total, false, false);
+        save(tenantId, task.getId(), "PICK", request.idempotencyKey(), request, result);
+        return result;
+    }
+
+    /** Final warehouse exit: only fully PDA-picked dispatches can consume picked inventory. */
+    @Transactional
+    public DispatchPdaResponses.Departed depart(String tenantId, String dispatchNo, String operatorId,
+                                                 DispatchPdaRequests.Depart request) {
+        DispatchOrder found = requireOrder(tenantId, dispatchNo);
+        DispatchOrder order = orders.lockById(tenantId, found.getId());
+        if (order == null) throw notFound("Dispatch order not found");
+        DispatchPdaOperation replay = replay(tenantId, "DEPART", request.idempotencyKey(), request);
+        if (replay != null) return read(replay, DispatchPdaResponses.Departed.class).withReplay();
+        requireVehicle(order);
+        DispatchPdaTask task = tasks.lockByDispatch(tenantId, order.getId());
+        if (task == null || !"COMPLETED".equals(task.getStatus()) || !"READY_TO_DEPART".equals(order.getStatus())) {
+            throw conflict("Dispatch must complete PDA picking before departure");
+        }
+
+        List<DispatchItem> dispatchItems = items.findByDispatchOrder(tenantId, order.getId());
+        if (!allPicked(tenantId, task.getId(), dispatchItems)) {
+            throw conflict("Every dispatch pallet must be fully picked before departure");
+        }
+        List<DispatchPdaPick> dispatchPicks = picks.listTask(tenantId, task.getId());
+        if (dispatchPicks.isEmpty()) throw conflict("Dispatch has no PDA picks to ship");
+        long shipped = 0;
+        for (DispatchPdaPick pick : dispatchPicks) {
+            String key = "DISPATCH:" + order.getDispatchNo() + ":PICK:" + pick.getId() + ":SHIP";
+            inventory.ship(tenantId, operatorId, new InventoryCommandRequests.Move(tenantId,
+                pick.getInventoryPositionId(), n(pick.getPackages()), n(pick.getProductQuantity()),
+                order.getDispatchNo(), order.getDispatchNo(), null, key, request.remark()));
+            shipped += n(pick.getPackages());
+        }
+        LocalDateTime now = LocalDateTime.now();
+        order.setStatus("DEPARTED");
+        order.setUpdatedAt(now);
+        orders.updateById(order);
+        releasePalletLocks(tenantId, order.getId(), now);
+        DispatchPdaResponses.Departed result = new DispatchPdaResponses.Departed(order.getDispatchNo(),
+            order.getStatus(), shipped, false);
+        save(tenantId, task.getId(), "DEPART", request.idempotencyKey(), request, result);
+        return result;
+    }
+
+    private DispatchPdaResponses.Task task(String tenantId, DispatchOrder order, DispatchPdaTask task, List<DispatchItem> source) {
+        List<DispatchPdaResponses.Item> values = new ArrayList<>();
+        for (DispatchItem item : source) {
+            List<InventoryPosition> palletPositions = item.getWarehousePalletId() == null ? List.of()
+                : positions.listPallet(tenantId, item.getWarehousePalletId());
+            values.add(new DispatchPdaResponses.Item(item.getId(), item.getPalletNo(), item.getDestinationWarehouseCode(),
+                item.getDestinationWarehouseName(), item.getFbaWarehouseCode(), item.getPackageCount(),
+                picks.totalItem(tenantId, task.getId(), item.getId()), palletPositions.stream().map(p ->
+                new DispatchPdaResponses.Position(p.getId(), p.getSkuCode(), n(p.getAvailablePackages()), n(p.getAllocatedPackages()),
+                    n(p.getPickedPackages()), n(p.getProductQuantity()))).toList()));
+        }
+        return new DispatchPdaResponses.Task(task.getId(), task.getTaskNo(), order.getDispatchNo(), order.getVehiclePlate(), task.getStatus(), values);
+    }
+
+    private boolean allPicked(String tenantId, Long taskId, List<DispatchItem> source) {
+        return source.stream().allMatch(item -> picks.totalItem(tenantId, taskId, item.getId()) == item.getPackageCount());
+    }
+    private void releasePalletLocks(String tenantId, Long dispatchOrderId, LocalDateTime now) {
+        List<DispatchPalletLock> activeLocks = palletLocks.selectList(new com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper<DispatchPalletLock>()
+            .eq(DispatchPalletLock::getTenantId, tenantId)
+            .eq(DispatchPalletLock::getDispatchOrderId, dispatchOrderId)
+            .eq(DispatchPalletLock::getStatus, "ACTIVE"));
+        for (DispatchPalletLock lock : activeLocks) {
+            lock.setStatus("RELEASED");
+            lock.setActiveKey(null);
+            lock.setReleasedAt(now);
+            lock.setUpdatedAt(now);
+            palletLocks.updateById(lock);
+        }
+    }
+    private DispatchOrder requireOrder(String tenantId, String dispatchNo) { DispatchOrder order = orders.findByDispatchNo(tenantId, dispatchNo); if (order == null) throw notFound("Dispatch order not found"); return order; }
+    private void requirePdaStatus(DispatchOrder order) {
+        if (!("PENDING_DEPARTURE".equals(order.getStatus()) || "PICKING".equals(order.getStatus())
+            || "READY_TO_DEPART".equals(order.getStatus()))) throw conflict("Dispatch has already departed and cannot be changed by PDA");
+    }
+    private void requireVehicle(DispatchOrder order) { if (trim(order.getVehiclePlate()) == null) throw conflict("Vehicle plate is required before PDA push or picking"); }
+    private DispatchPdaOperation replay(String tenantId, String type, String key, Object request) { DispatchPdaOperation op = operations.findKey(tenantId, required(key, "Idempotency key is required")); if (op == null) return null; if (!type.equals(op.getOperationType()) || !hash(request).equals(op.getRequestHash())) throw conflict("Idempotency key was reused with a different request"); if (!"COMPLETED".equals(op.getStatus())) throw conflict("PDA operation is still processing"); return op; }
+    private void save(String tenantId, Long taskId, String type, String key, Object request, Object result) { DispatchPdaOperation op = new DispatchPdaOperation(); op.setId(IdWorker.getId()); op.setTenantId(tenantId); op.setTaskId(taskId); op.setOperationType(type); op.setIdempotencyKey(required(key,"Idempotency key is required")); op.setRequestHash(hash(request)); op.setResultJson(json(result)); op.setStatus("COMPLETED"); op.setCreatedAt(LocalDateTime.now()); op.setUpdatedAt(op.getCreatedAt()); operations.insert(op); }
+    private <T> T read(DispatchPdaOperation op, Class<T> type) { try { return objectMapper.readValue(op.getResultJson(), type); } catch (Exception e) { throw new IllegalStateException("Cannot read PDA replay", e); } }
+    private String hash(Object value) { try { return HexFormat.of().formatHex(MessageDigest.getInstance("SHA-256").digest(json(value).getBytes(StandardCharsets.UTF_8))); } catch (Exception e) { throw new IllegalStateException(e); } }
+    private String json(Object value) { try { return objectMapper.writeValueAsString(value); } catch (Exception e) { throw new IllegalStateException(e); } }
+    private static long n(Long value) { return value == null ? 0 : value; }
+    private static String trim(String value) { return value == null || value.trim().isEmpty() ? null : value.trim(); }
+    private static String required(String value, String message) { String result = trim(value); if (result == null) throw new ResponseStatusException(HttpStatus.BAD_REQUEST, message); return result; }
+    private static ResponseStatusException conflict(String message) { return new ResponseStatusException(HttpStatus.CONFLICT, message); }
+    private static ResponseStatusException notFound(String message) { return new ResponseStatusException(HttpStatus.NOT_FOUND, message); }
+}

lastleg/src/main/java/com/baiyue/lastleg/dispatch/service/DispatchService.java

@@ -0,0 +1,246 @@
+package com.baiyue.lastleg.dispatch.service;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.toolkit.IdWorker;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baiyue.common.core.api.PageResult;
+import com.baiyue.lastleg.dispatch.dto.DispatchRequests;
+import com.baiyue.lastleg.dispatch.dto.DispatchResponse;
+import com.baiyue.lastleg.dispatch.entity.DispatchItem;
+import com.baiyue.lastleg.dispatch.entity.DispatchOrder;
+import com.baiyue.lastleg.dispatch.entity.DispatchPalletLock;
+import com.baiyue.lastleg.dispatch.mapper.DispatchCandidateMapper;
+import com.baiyue.lastleg.dispatch.mapper.DispatchItemMapper;
+import com.baiyue.lastleg.dispatch.mapper.DispatchOrderMapper;
+import com.baiyue.lastleg.dispatch.mapper.DispatchPalletLockMapper;
+import com.baiyue.lastleg.dispatch.model.DispatchPalletCandidate;
+import jakarta.annotation.Resource;
+import org.springframework.dao.DuplicateKeyException;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.StringUtils;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+@Service
+public class DispatchService {
+    public static final String PENDING_DEPARTURE = "PENDING_DEPARTURE";
+    public static final String CANCELLED = "CANCELLED";
+    private static final Set<String> STATUSES = Set.of(PENDING_DEPARTURE, "PICKING", "READY_TO_DEPART",
+        "DEPARTED", "COMPLETED", CANCELLED);
+
+    @Resource private DispatchOrderMapper orders;
+    @Resource private DispatchItemMapper items;
+    @Resource private DispatchPalletLockMapper locks;
+    @Resource private DispatchCandidateMapper candidates;
+
+    public List<DispatchPalletCandidate> candidates(String tenantId, String orderNo,
+                                                     String fbaWarehouseCode, String sourceStage) {
+        if (StringUtils.hasText(sourceStage) && !Set.of("PLAN", "RECEIVED").contains(sourceStage)) {
+            throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "sourceStage must be PLAN or RECEIVED");
+        }
+        return candidates.available(tenantId, trimToNull(orderNo), trimToNull(fbaWarehouseCode), trimToNull(sourceStage));
+    }
+
+    @Transactional
+    public DispatchResponse preArrange(String tenantId, String operatorId, DispatchRequests.PreArrange request) {
+        List<Long> palletIds = request.planPalletIds().stream().filter(Objects::nonNull).distinct().sorted().toList();
+        if (palletIds.isEmpty() || palletIds.size() != request.planPalletIds().size()) {
+            throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Plan pallet IDs must be unique and non-empty");
+        }
+        List<DispatchPalletCandidate> selected = candidates.lockSelected(tenantId, palletIds);
+        if (selected.size() != palletIds.size()) {
+            throw new ResponseStatusException(HttpStatus.NOT_FOUND, "One or more selected pallets are not in this tenant");
+        }
+        for (DispatchPalletCandidate candidate : selected) {
+            boolean planLocked = candidate.planPalletId() != null
+                && locks.lockActive(tenantId, "PLAN:" + candidate.planPalletId()) != null;
+            boolean receivedLocked = candidate.warehousePalletId() != null
+                && locks.lockActive(tenantId, "RECEIVED:" + candidate.warehousePalletId()) != null;
+            if (planLocked || receivedLocked) {
+                throw new ResponseStatusException(HttpStatus.CONFLICT,
+                    "Pallet is already locked by another active dispatch: " + candidate.palletNo());
+            }
+        }
+
+        LocalDateTime now = LocalDateTime.now();
+        DispatchOrder dispatch = new DispatchOrder();
+        dispatch.setId(IdWorker.getId());
+        dispatch.setTenantId(tenantId);
+        dispatch.setDispatchNo("PC" + now.format(DateTimeFormatter.BASIC_ISO_DATE) + dispatch.getId());
+        dispatch.setRoute(StringUtils.hasText(request.route()) ? request.route().trim() : route(selected));
+        dispatch.setFbaAppointmentNo(trimToNull(request.fbaAppointmentNo()));
+        dispatch.setFbaAppointmentStatus(defaultStatus(request.fbaAppointmentStatus()));
+        dispatch.setVehicleAppointmentStatus(defaultStatus(request.vehicleAppointmentStatus()));
+        dispatch.setStatus(PENDING_DEPARTURE);
+        dispatch.setItemCount(selected.size());
+        dispatch.setPalletCount(selected.size());
+        dispatch.setPackageCount(selected.stream().map(DispatchPalletCandidate::packageCount)
+            .filter(Objects::nonNull).mapToInt(Integer::intValue).sum());
+        dispatch.setCreatedBy(trimToNull(operatorId));
+        dispatch.setCreatedAt(now);
+        dispatch.setUpdatedAt(now);
+        orders.insert(dispatch);
+
+        for (DispatchPalletCandidate candidate : selected) {
+            DispatchPalletLock lock = new DispatchPalletLock();
+            lock.setId(IdWorker.getId());
+            lock.setTenantId(tenantId);
+            lock.setSourcePalletKey(candidate.sourcePalletKey());
+            lock.setActiveKey(candidate.sourcePalletKey());
+            lock.setPlanId(candidate.planId());
+            lock.setPlanPalletId(candidate.planPalletId());
+            lock.setWarehousePalletId(candidate.warehousePalletId());
+            lock.setDispatchOrderId(dispatch.getId());
+            lock.setStatus("ACTIVE");
+            lock.setLockedAt(now);
+            lock.setCreatedAt(now);
+            lock.setUpdatedAt(now);
+            try {
+                locks.insert(lock);
+            } catch (DuplicateKeyException exception) {
+                throw new ResponseStatusException(HttpStatus.CONFLICT,
+                    "Pallet is already locked by another active dispatch: " + candidate.palletNo(), exception);
+            }
+            DispatchItem item = new DispatchItem();
+            item.setId(IdWorker.getId());
+            item.setDispatchOrderId(dispatch.getId());
+            item.setTenantId(tenantId);
+            item.setPlanId(candidate.planId());
+            item.setPlanPalletId(candidate.planPalletId());
+            item.setWarehousePalletId(candidate.warehousePalletId());
+            item.setOrderId(candidate.orderId());
+            item.setOrderNo(candidate.orderNo());
+            item.setOrderRefs(candidate.orderRefs());
+            item.setInboundCode(candidate.inboundCode());
+            item.setPalletNo(candidate.palletNo());
+            item.setDestinationWarehouseId(candidate.destinationWarehouseId());
+            item.setDestinationWarehouseCode(candidate.destinationWarehouseCode());
+            item.setDestinationWarehouseName(candidate.destinationWarehouseName());
+            item.setFbaWarehouseCode(candidate.fbaWarehouseCode());
+            item.setPackageCount(Objects.requireNonNullElse(candidate.packageCount(), 0));
+            item.setVolumeCbm(Objects.requireNonNullElse(candidate.volumeCbm(), BigDecimal.ZERO));
+            item.setSourceStage(candidate.sourceStage());
+            item.setCreatedAt(now);
+            items.insert(item);
+        }
+        return response(dispatch, items.findByDispatchOrder(tenantId, dispatch.getId()));
+    }
+
+    public PageResult<DispatchResponse> page(String tenantId, DispatchRequests.Query query) {
+        Page<DispatchOrder> page = orders.selectPage(new Page<>(query.page(), query.size()),
+            new LambdaQueryWrapper<DispatchOrder>().eq(DispatchOrder::getTenantId, tenantId)
+                .like(StringUtils.hasText(query.dispatchNo()), DispatchOrder::getDispatchNo, query.dispatchNo())
+                .like(StringUtils.hasText(query.vehiclePlate()), DispatchOrder::getVehiclePlate, query.vehiclePlate())
+                .eq(StringUtils.hasText(query.status()), DispatchOrder::getStatus, query.status())
+                .like(StringUtils.hasText(query.fbaAppointmentNo()), DispatchOrder::getFbaAppointmentNo,
+                    query.fbaAppointmentNo())
+                .orderByDesc(DispatchOrder::getCreatedAt));
+        List<DispatchResponse> records = page.getRecords().stream()
+            .map(order -> response(order, items.findByDispatchOrder(tenantId, order.getId()))).toList();
+        return new PageResult<>(records, page.getCurrent(), page.getSize(), page.getTotal(), page.getPages());
+    }
+
+    public DispatchResponse detail(String tenantId, String dispatchNo) {
+        DispatchOrder dispatch = find(tenantId, dispatchNo);
+        return response(dispatch, items.findByDispatchOrder(tenantId, dispatch.getId()));
+    }
+
+    @Transactional
+    public DispatchResponse update(String tenantId, String dispatchNo, DispatchRequests.Update request) {
+        DispatchOrder dispatch = orders.lockById(tenantId, find(tenantId, dispatchNo).getId());
+        if (dispatch == null) throw new ResponseStatusException(HttpStatus.NOT_FOUND, "Dispatch order not found");
+        // Vehicle plate is intentionally editable through all dispatch states.
+        dispatch.setVehiclePlate(trimToNull(request.vehiclePlate()));
+        dispatch.setDriverName(trimToNull(request.driverName()));
+        dispatch.setDriverPhone(trimToNull(request.driverPhone()));
+        dispatch.setCarrierName(trimToNull(request.carrierName()));
+        dispatch.setRoute(trimToNull(request.route()));
+        dispatch.setDepartAt(request.departAt());
+        dispatch.setFbaAppointmentNo(trimToNull(request.fbaAppointmentNo()));
+        dispatch.setFbaAppointmentStatus(defaultStatus(request.fbaAppointmentStatus()));
+        dispatch.setVehicleAppointmentStatus(defaultStatus(request.vehicleAppointmentStatus()));
+        dispatch.setEstimatedArrivalAt(request.estimatedArrivalAt());
+        if (StringUtils.hasText(request.status())) {
+            String status = request.status().trim().toUpperCase();
+            if (!STATUSES.contains(status) || CANCELLED.equals(status)) {
+                throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Use cancel endpoint or a valid dispatch status");
+            }
+            dispatch.setStatus(status);
+        }
+        dispatch.setUpdatedAt(LocalDateTime.now());
+        orders.updateById(dispatch);
+        return response(dispatch, items.findByDispatchOrder(tenantId, dispatch.getId()));
+    }
+
+    @Transactional
+    public void cancel(String tenantId, String dispatchNo) {
+        DispatchOrder dispatch = orders.lockById(tenantId, find(tenantId, dispatchNo).getId());
+        if (dispatch == null) throw new ResponseStatusException(HttpStatus.NOT_FOUND, "Dispatch order not found");
+        if (!(PENDING_DEPARTURE.equals(dispatch.getStatus()))) {
+            throw new ResponseStatusException(HttpStatus.CONFLICT, "Dispatched order cannot be cancelled");
+        }
+        LocalDateTime now = LocalDateTime.now();
+        dispatch.setStatus(CANCELLED);
+        dispatch.setUpdatedAt(now);
+        orders.updateById(dispatch);
+        List<DispatchPalletLock> activeLocks = locks.selectList(new LambdaQueryWrapper<DispatchPalletLock>()
+            .eq(DispatchPalletLock::getTenantId, tenantId)
+            .eq(DispatchPalletLock::getDispatchOrderId, dispatch.getId())
+            .eq(DispatchPalletLock::getStatus, "ACTIVE"));
+        for (DispatchPalletLock lock : activeLocks) {
+            lock.setStatus("RELEASED");
+            lock.setActiveKey(null);
+            lock.setReleasedAt(now);
+            lock.setUpdatedAt(now);
+            locks.updateById(lock);
+        }
+    }
+
+    private DispatchOrder find(String tenantId, String dispatchNo) {
+        DispatchOrder dispatch = orders.findByDispatchNo(tenantId, dispatchNo);
+        if (dispatch == null) throw new ResponseStatusException(HttpStatus.NOT_FOUND, "Dispatch order not found");
+        return dispatch;
+    }
+
+    private DispatchResponse response(DispatchOrder order, List<DispatchItem> itemList) {
+        String orderNos = itemList.stream().flatMap(item -> splitOrderRefs(item.getOrderRefs(), item.getOrderNo()).stream())
+            .distinct().collect(Collectors.joining(","));
+        return new DispatchResponse(order.getId(), order.getDispatchNo(), order.getVehiclePlate(), order.getDriverName(),
+            order.getDriverPhone(), order.getCarrierName(), orderNos, order.getRoute(), order.getDepartAt(),
+            order.getFbaAppointmentNo(), order.getFbaAppointmentStatus(), order.getVehicleAppointmentStatus(),
+            order.getEstimatedArrivalAt(), order.getStatus(), Objects.requireNonNullElse(order.getItemCount(), 0),
+            Objects.requireNonNullElse(order.getPalletCount(), 0), Objects.requireNonNullElse(order.getPackageCount(), 0),
+            order.getCreatedAt(), itemList.stream().map(item -> new DispatchResponse.Item(item.getId(), item.getPlanPalletId(),
+                item.getWarehousePalletId(), item.getPalletNo(), item.getOrderNo(), item.getOrderRefs(), item.getInboundCode(),
+                item.getDestinationWarehouseCode(), item.getDestinationWarehouseName(), item.getFbaWarehouseCode(),
+                Objects.requireNonNullElse(item.getPackageCount(), 0), item.getVolumeCbm(), item.getSourceStage())).toList());
+    }
+
+    private static String route(List<DispatchPalletCandidate> selected) {
+        return selected.stream().map(DispatchPalletCandidate::destinationWarehouseCode).filter(StringUtils::hasText)
+            .distinct().collect(Collectors.joining(" -> "));
+    }
+
+    private static List<String> splitOrderRefs(String refs, String fallback) {
+        String value = StringUtils.hasText(refs) ? refs : fallback;
+        return StringUtils.hasText(value) ? List.of(value.split(",")) : List.of();
+    }
+
+    private static String defaultStatus(String status) {
+        return StringUtils.hasText(status) ? status.trim().toUpperCase() : "PENDING";
+    }
+
+    private static String trimToNull(String value) {
+        return StringUtils.hasText(value) ? value.trim() : null;
+    }
+}

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/controller/InboundPlanController.java

@@ -3,7 +3,10 @@ package com.baiyue.lastleg.inboundplan.controller;
 import com.baiyue.common.core.api.ApiResponse;
 import com.baiyue.common.security.AuthenticatedUser;
 import com.baiyue.lastleg.inboundplan.dto.ConvertInboundPlanRequest;
+import com.baiyue.lastleg.inboundplan.dto.BatchFbaAppointmentRequest;
+import com.baiyue.lastleg.inboundplan.dto.FbaAppointmentResponse;
 import com.baiyue.lastleg.inboundplan.dto.InboundPlanResponse;
+import com.baiyue.lastleg.inboundplan.service.InboundFbaAppointmentService;
 import com.baiyue.lastleg.inboundplan.service.InboundPlanService;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
@@ -19,6 +22,7 @@ import org.springframework.web.server.ResponseStatusException;
 @Tag(name = "Tail-leg inbound plans")
 public class InboundPlanController {
     @Resource private InboundPlanService service;
+    @Resource private InboundFbaAppointmentService appointmentService;
 
     @PostMapping("/convert")
     @Operation(summary = "Convert the entire container to one inbound plan")
@@ -35,6 +39,25 @@ public class InboundPlanController {
         return ApiResponse.success(service.detailByPlanNo(scope(user, tenantId), planNo));
     }
 
+    @PostMapping("/fba-appointments/batch")
+    @Operation(summary = "Create one FBA appointment for selected inbound lines")
+    public ApiResponse<FbaAppointmentResponse> batchFbaAppointment(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @Valid @RequestBody BatchFbaAppointmentRequest request) {
+        String tenantId = scope(user, request.tenantId());
+        String operatorId = user.userId() == null ? user.username() : String.valueOf(user.userId());
+        return ApiResponse.success(appointmentService.batchCreate(tenantId, operatorId, request));
+    }
+
+    @GetMapping("/fba-appointments/{appointmentNo}")
+    @Operation(summary = "Get an FBA appointment and its selected inbound lines")
+    public ApiResponse<FbaAppointmentResponse> fbaAppointmentDetail(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @PathVariable String appointmentNo,
+        @RequestParam(required = false) String tenantId) {
+        return ApiResponse.success(appointmentService.detail(scope(user, tenantId), appointmentNo));
+    }
+
     private String scope(AuthenticatedUser user, String requestedTenant) {
         if (user == null || user.tenantId() == null) {
             throw new ResponseStatusException(HttpStatus.UNAUTHORIZED);

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/dto/BatchFbaAppointmentRequest.java

@@ -0,0 +1,19 @@
+package com.baiyue.lastleg.inboundplan.dto;
+
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotEmpty;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+public record BatchFbaAppointmentRequest(
+    String tenantId,
+    @NotEmpty @Size(max = 500) List<@NotNull Long> lineIds,
+    @NotBlank @Size(max = 64) String appointmentNo,
+    @NotNull LocalDateTime appointmentAt,
+    @NotBlank @Size(max = 32) String appointmentStatus,
+    @Size(max = 1000) String appointmentRemark
+) {
+}

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/dto/FbaAppointmentResponse.java

@@ -0,0 +1,23 @@
+package com.baiyue.lastleg.inboundplan.dto;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+public record FbaAppointmentResponse(
+    Long id,
+    String tenantId,
+    String appointmentNo,
+    LocalDateTime appointmentAt,
+    String appointmentStatus,
+    String appointmentRemark,
+    String fbaWarehouseCode,
+    int selectedCount,
+    String createdBy,
+    LocalDateTime createdAt,
+    LocalDateTime updatedAt,
+    List<Item> items
+) {
+    public record Item(Long id, Long planId, Long lineId, Long orderId, String inboundCode,
+                       String fbaWarehouseCode) {
+    }
+}

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/dto/InboundPlanResponse.java

@@ -17,7 +17,7 @@ public record InboundPlanResponse(
     List<Pallet> pallets,
     List<Allocation> allocations
 ) {
-    public record Line(Long id, Long orderId, String inboundCode, String destinationWarehouseId,
+    public record Line(Long id, Long orderId, String inboundCode, String fbaWarehouseCode, String destinationWarehouseId,
                        String destinationWarehouseCode, String destinationWarehouseName,
                        BigDecimal volumeCbm, int requiredPackageCount, int plannedPalletCount) {
     }

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/entity/InboundFbaAppointment.java

@@ -0,0 +1,25 @@
+package com.baiyue.lastleg.inboundplan.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+@TableName("ll_inbound_fba_appointment")
+public class InboundFbaAppointment {
+    @TableId(type = IdType.INPUT)
+    private Long id;
+    private String tenantId;
+    private String appointmentNo;
+    private LocalDateTime appointmentAt;
+    private String appointmentStatus;
+    private String appointmentRemark;
+    private String fbaWarehouseCode;
+    private Integer selectedCount;
+    private String createdBy;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/entity/InboundFbaAppointmentItem.java

@@ -0,0 +1,22 @@
+package com.baiyue.lastleg.inboundplan.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+@TableName("ll_inbound_fba_appointment_item")
+public class InboundFbaAppointmentItem {
+    @TableId(type = IdType.INPUT)
+    private Long id;
+    private Long appointmentId;
+    private Long planId;
+    private Long lineId;
+    private Long orderId;
+    private String inboundCode;
+    private String fbaWarehouseCode;
+    private LocalDateTime createdAt;
+}

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/entity/InboundPlanLine.java

@@ -15,6 +15,7 @@ public class InboundPlanLine {
     private Long planId;
     private Long orderId;
     private String inboundCode;
+    private String fbaWarehouseCode;
     private String destinationWarehouseId;
     private String destinationWarehouseCode;
     private String destinationWarehouseName;

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/mapper/InboundFbaAppointmentItemMapper.java

@@ -0,0 +1,9 @@
+package com.baiyue.lastleg.inboundplan.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.inboundplan.entity.InboundFbaAppointmentItem;
+import org.apache.ibatis.annotations.Mapper;
+
+@Mapper
+public interface InboundFbaAppointmentItemMapper extends BaseMapper<InboundFbaAppointmentItem> {
+}

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/mapper/InboundFbaAppointmentMapper.java

@@ -0,0 +1,9 @@
+package com.baiyue.lastleg.inboundplan.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baiyue.lastleg.inboundplan.entity.InboundFbaAppointment;
+import org.apache.ibatis.annotations.Mapper;
+
+@Mapper
+public interface InboundFbaAppointmentMapper extends BaseMapper<InboundFbaAppointment> {
+}

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/mapper/InboundFbaAppointmentQueryMapper.java

@@ -0,0 +1,22 @@
+package com.baiyue.lastleg.inboundplan.mapper;
+
+import com.baiyue.lastleg.inboundplan.model.FbaAppointmentLineSnapshot;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+@Mapper
+public interface InboundFbaAppointmentQueryMapper {
+    @Select("<script>" +
+        "SELECT l.id AS lineId,l.plan_id AS planId,l.order_id AS orderId,l.inbound_code AS inboundCode," +
+        "l.fba_warehouse_code AS fbaWarehouseCode " +
+        "FROM ll_inbound_plan_line l JOIN ll_inbound_plan p ON p.id=l.plan_id " +
+        "WHERE p.tenant_id=#{tenantId} AND l.id IN " +
+        "<foreach collection='lineIds' item='id' open='(' separator=',' close=')'>#{id}</foreach> " +
+        "ORDER BY l.id FOR UPDATE" +
+        "</script>")
+    List<FbaAppointmentLineSnapshot> lockLines(@Param("tenantId") String tenantId,
+                                                @Param("lineIds") List<Long> lineIds);
+}

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/mapper/InboundPlanOrderMapper.java

@@ -18,6 +18,7 @@ public interface InboundPlanOrderMapper {
     @Select("SELECT o.id AS orderId,o.tenant_id AS tenantId,o.container_no AS containerNo," +
         "o.inbound_code AS inboundCode,o.current_status AS currentStatus,o.inbound_order_no AS inboundOrderNo," +
         "COALESCE(o.volume_cbm,0) AS volumeCbm,COALESCE(o.package_count,0) AS packageCount," +
+        "NULLIF(o.fba_warehouse_code,'') AS fbaWarehouseCode," +
         "COALESCE(NULLIF(o.transfer_warehouse_id,''),MIN(NULLIF(d.destination_warehouse_id,''))) AS destinationWarehouseId," +
         "COALESCE(NULLIF(o.transfer_warehouse_code,''),MIN(NULLIF(d.destination_warehouse_code,''))) AS destinationWarehouseCode," +
         "COALESCE(NULLIF(o.transfer_warehouse_name,''),MIN(NULLIF(d.destination_warehouse_name,''))) AS destinationWarehouseName," +
@@ -29,7 +30,7 @@ public interface InboundPlanOrderMapper {
         "AS destinationMismatchCount " +
         "FROM ll_order o LEFT JOIN ll_order_detail d ON d.order_id=o.id " +
         "WHERE o.tenant_id=#{tenantId} AND o.container_no=#{containerNo} " +
-        "GROUP BY o.id,o.tenant_id,o.container_no,o.inbound_code,o.current_status,o.inbound_order_no,o.volume_cbm,o.package_count," +
+        "GROUP BY o.id,o.tenant_id,o.container_no,o.inbound_code,o.current_status,o.inbound_order_no,o.volume_cbm,o.package_count,o.fba_warehouse_code," +
         "o.transfer_warehouse_id,o.transfer_warehouse_code,o.transfer_warehouse_name " +
         "ORDER BY o.id FOR UPDATE")
     List<SourceOrderSnapshot> lockContainerOrders(@Param("tenantId") String tenantId,

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/model/FbaAppointmentLineSnapshot.java

@@ -0,0 +1,10 @@
+package com.baiyue.lastleg.inboundplan.model;
+
+public record FbaAppointmentLineSnapshot(
+    Long lineId,
+    Long planId,
+    Long orderId,
+    String inboundCode,
+    String fbaWarehouseCode
+) {
+}

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/model/FbaAppointmentStatus.java

@@ -0,0 +1,8 @@
+package com.baiyue.lastleg.inboundplan.model;
+
+public enum FbaAppointmentStatus {
+    PENDING,
+    SUCCESS,
+    FAILED,
+    CANCELLED
+}

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/model/SourceOrderSnapshot.java

@@ -11,10 +11,20 @@ public record SourceOrderSnapshot(
     String inboundOrderNo,
     BigDecimal volumeCbm,
     int packageCount,
+    String fbaWarehouseCode,
     String destinationWarehouseId,
     String destinationWarehouseCode,
     String destinationWarehouseName,
     int destinationCount,
     int destinationMismatchCount
 ) {
+    public SourceOrderSnapshot(Long orderId, String tenantId, String containerNo, String inboundCode,
+                               String currentStatus, String inboundOrderNo, BigDecimal volumeCbm,
+                               int packageCount, String destinationWarehouseId,
+                               String destinationWarehouseCode, String destinationWarehouseName,
+                               int destinationCount, int destinationMismatchCount) {
+        this(orderId, tenantId, containerNo, inboundCode, currentStatus, inboundOrderNo, volumeCbm,
+            packageCount, null, destinationWarehouseId, destinationWarehouseCode,
+            destinationWarehouseName, destinationCount, destinationMismatchCount);
+    }
 }

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/pda/entity/InboundStockReceipt.java

@@ -0,0 +1,38 @@
+package com.baiyue.lastleg.inboundplan.pda.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+/** Immutable SKU/pallet receipt created when a PDA inbound task completes. */
+@Data
+@TableName("ll_inbound_stock_receipt")
+public class InboundStockReceipt {
+    @TableId(type = IdType.ASSIGN_ID)
+    private Long id;
+    private String tenantId;
+    private Long planId;
+    private Long taskId;
+    private Long allocationId;
+    private Long lineId;
+    private Long orderId;
+    private String inboundCode;
+    private String skuCode;
+    private String skuNameZh;
+    private String sourceDetailIds;
+    private Long warehousePalletId;
+    private String palletNo;
+    private Long warehouseLocationId;
+    private String warehouseLocationCode;
+    private String batchNo;
+    private Long receivedPackages;
+    private Long receivedQuantity;
+    private Long inventoryBalanceId;
+    private Long inventoryPositionId;
+    private String inventoryOperationKey;
+    private LocalDateTime receivedAt;
+    private LocalDateTime createdAt;
+}

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/pda/gateway/HttpWarehouseResourceGateway.java

@@ -57,6 +57,19 @@ public class HttpWarehouseResourceGateway implements WarehouseResourceGateway {
             .toBodilessEntity();
     }
 
+    @Override
+    public void scrapPallet(String tenantId, long palletId) {
+        client.post()
+            .uri("/internal/v1/warehouse-resource-locks/pallets/{palletId}/scrap", palletId)
+            .header("X-Internal-Service-Token", internalToken)
+            .body(Map.of("tenantId", Long.parseLong(tenantId)))
+            .retrieve()
+            .onStatus(HttpStatusCode::isError, (request, response) -> {
+                throw new IllegalStateException("Warehouse rejected pallet scrap: HTTP " + response.getStatusCode());
+            })
+            .toBodilessEntity();
+    }
+
     private record ReserveEnvelope(ReserveData data) {}
     private record ReserveData(long lockId) {}
 }

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/pda/gateway/WarehouseResourceGateway.java

@@ -4,4 +4,5 @@ public interface WarehouseResourceGateway {
     long reserve(String tenantId, long warehouseId, long palletId, long locationId,
                  String businessType, String businessId, String reservationKey);
     void scrap(String tenantId, long resourceLockId);
+    void scrapPallet(String tenantId, long palletId);
 }

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/pda/mapper/InboundStockReceiptMapper.java

@@ -0,0 +1,14 @@
+package com.baiyue.lastleg.inboundplan.pda.mapper;
+
+import com.baiyue.lastleg.inboundplan.pda.entity.InboundStockReceipt;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+public interface InboundStockReceiptMapper extends BaseMapper<InboundStockReceipt> {
+    @Select("SELECT * FROM ll_inbound_stock_receipt WHERE tenant_id=#{tenantId} AND task_id=#{taskId} " +
+        "ORDER BY allocation_id,sku_code")
+    List<InboundStockReceipt> listTask(@Param("tenantId") String tenantId, @Param("taskId") Long taskId);
+}

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/pda/service/InboundPdaWorkflowService.java

@@ -42,6 +42,7 @@ public class InboundPdaWorkflowService {
 
     @Resource private PdaWorkflowRepository repository;
     @Resource private WarehouseResourceGateway warehouse;
+    @Resource private InboundStockReceiptService stockReceipts;
     @Resource private ObjectMapper sourceObjectMapper;
 
     private ObjectMapper objectMapper;
@@ -276,9 +277,12 @@ public class InboundPdaWorkflowService {
     @Transactional
     public PdaResponses.Task complete(String tenantId, String planNo) {
         InboundPlan plan = requirePlan(tenantId, planNo);
-        InboundPdaTask task = requireActiveTask(tenantId, plan);
+        InboundPdaTask task = repository.lockTask(tenantId, plan.getId());
+        if (task == null) throw conflict("Push the inbound plan to PDA before operating");
+        if ("COMPLETED".equals(task.getStatus())) return task(task, planNo);
         Map<Long, Integer> pickedByLine = new HashMap<>();
-        for (InboundPlanPalletAllocation allocation : repository.allocations(plan.getId())) {
+        List<InboundPlanPalletAllocation> allocations = repository.allocations(plan.getId());
+        for (InboundPlanPalletAllocation allocation : allocations) {
             pickedByLine.merge(allocation.getLineId(), value(allocation.getPickedPackageCount()), Integer::sum);
         }
         List<InboundPlanLine> lines = repository.lines(plan.getId());
@@ -289,6 +293,7 @@ public class InboundPdaWorkflowService {
             }
         }
         LocalDateTime now = LocalDateTime.now();
+        stockReceipts.stockIn(tenantId, plan, task, lines, allocations, repository.pallets(plan.getId()), now);
         task.setStatus("COMPLETED");
         task.setCompletedAt(now);
         task.setUpdatedAt(now);

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/pda/service/InboundStockReceiptService.java

@@ -0,0 +1,221 @@
+package com.baiyue.lastleg.inboundplan.pda.service;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.toolkit.IdWorker;
+import com.baiyue.lastleg.entity.LastlegOrder;
+import com.baiyue.lastleg.entity.LastlegOrderDetail;
+import com.baiyue.lastleg.inboundplan.entity.InboundPlan;
+import com.baiyue.lastleg.inboundplan.entity.InboundPlanLine;
+import com.baiyue.lastleg.inboundplan.entity.InboundPlanPallet;
+import com.baiyue.lastleg.inboundplan.entity.InboundPlanPalletAllocation;
+import com.baiyue.lastleg.inboundplan.pda.entity.InboundPdaTask;
+import com.baiyue.lastleg.inboundplan.pda.entity.InboundStockReceipt;
+import com.baiyue.lastleg.inboundplan.pda.mapper.InboundStockReceiptMapper;
+import com.baiyue.lastleg.inventory.command.dto.InventoryCommandRequests;
+import com.baiyue.lastleg.inventory.command.dto.InventoryCommandResponse;
+import com.baiyue.lastleg.inventory.command.service.InventoryCommandService;
+import com.baiyue.lastleg.mapper.LastlegOrderDetailMapper;
+import com.baiyue.lastleg.mapper.LastlegOrderMapper;
+import jakarta.annotation.Resource;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+@Service
+public class InboundStockReceiptService {
+    @Resource private LastlegOrderMapper orders;
+    @Resource private LastlegOrderDetailMapper details;
+    @Resource private InboundStockReceiptMapper receipts;
+    @Resource private InventoryCommandService inventory;
+
+    @Transactional
+    public void stockIn(String tenantId, InboundPlan plan, InboundPdaTask task,
+                        List<InboundPlanLine> lines, List<InboundPlanPalletAllocation> allocations,
+                        List<InboundPlanPallet> pallets, LocalDateTime receivedAt) {
+        if (!receipts.listTask(tenantId, task.getId()).isEmpty()) return;
+
+        var requestedOrderIds = lines.stream().map(InboundPlanLine::getOrderId).collect(Collectors.toSet());
+        Map<Long, LastlegOrder> orderById = orders.selectBatchIds(requestedOrderIds).stream()
+            .filter(order -> tenantId.equals(order.getTenantId()))
+            .collect(Collectors.toMap(LastlegOrder::getId, order -> order));
+        if (orderById.size() != requestedOrderIds.size()) {
+            throw conflict("Inbound line tail order is missing or outside the tenant");
+        }
+        Map<Long, List<LastlegOrderDetail>> detailsByOrder = details.selectList(
+            new LambdaQueryWrapper<LastlegOrderDetail>().in(LastlegOrderDetail::getOrderId, orderById.keySet()))
+            .stream().collect(Collectors.groupingBy(LastlegOrderDetail::getOrderId));
+        Map<Long, InboundPlanPallet> palletById = pallets.stream()
+            .collect(Collectors.toMap(InboundPlanPallet::getId, pallet -> pallet));
+        Map<Long, List<InboundPlanPalletAllocation>> allocationsByLine = allocations.stream()
+            .filter(allocation -> value(allocation.getPickedPackageCount()) > 0)
+            .sorted(Comparator.comparing(InboundPlanPalletAllocation::getId))
+            .collect(Collectors.groupingBy(InboundPlanPalletAllocation::getLineId,
+                LinkedHashMap::new, Collectors.toList()));
+
+        for (InboundPlanLine line : lines) {
+            LastlegOrder order = orderById.get(line.getOrderId());
+            if (order == null) throw conflict("Inbound line tail order is missing or outside the tenant");
+            List<InboundPlanPalletAllocation> lineAllocations = allocationsByLine
+                .getOrDefault(line.getId(), List.of());
+            List<SkuReceipt> skuReceipts = skuReceipts(line, detailsByOrder.getOrDefault(order.getId(), List.of()));
+            if (lineAllocations.stream().map(InboundPlanPalletAllocation::getPalletId).distinct().count() > 1
+                && skuReceipts.size() > 1) {
+                throw conflict("Multi-SKU inbound lines split across pallets require SKU-level PDA receipt counts");
+            }
+            if (skuReceipts.size() > 1) {
+                if (lineAllocations.size() != 1) {
+                    throw conflict("Multi-SKU inbound lines require one unambiguous pallet allocation");
+                }
+                InboundPlanPalletAllocation allocation = lineAllocations.get(0);
+                InboundPlanPallet pallet = requirePallet(palletById, allocation);
+                for (SkuReceipt sku : skuReceipts) {
+                    persist(tenantId, plan, task, line, allocation, pallet, order, sku,
+                        sku.packages(), sku.quantity(), receivedAt);
+                }
+                continue;
+            }
+
+            SkuReceipt sku = skuReceipts.get(0);
+            long cumulativePackages = 0;
+            for (InboundPlanPalletAllocation allocation : lineAllocations) {
+                long packages = value(allocation.getPickedPackageCount());
+                long nextPackages = cumulativePackages + packages;
+                long quantity = proportionalCumulative(sku.quantity(), nextPackages, sku.packages())
+                    - proportionalCumulative(sku.quantity(), cumulativePackages, sku.packages());
+                persist(tenantId, plan, task, line, allocation, requirePallet(palletById, allocation),
+                    order, sku, packages, quantity, receivedAt);
+                cumulativePackages = nextPackages;
+            }
+            if (cumulativePackages != sku.packages()) {
+                throw conflict("PDA picked packages do not conserve the frozen SKU package total");
+            }
+        }
+    }
+
+    private List<SkuReceipt> skuReceipts(InboundPlanLine line, List<LastlegOrderDetail> source) {
+        if (source.isEmpty()) throw conflict("Inbound line has no frozen SKU details");
+        Map<String, MutableSku> grouped = new LinkedHashMap<>();
+        long frozenPackages = 0;
+        for (LastlegOrderDetail detail : source) {
+            String skuCode = required(detail.getSkuCode(), "Frozen SKU code is required");
+            long packages = value(detail.getPackageCount());
+            if (packages < 0) throw conflict("Frozen SKU package count cannot be negative");
+            frozenPackages += packages;
+            if (packages == 0) continue;
+            MutableSku sku = grouped.computeIfAbsent(skuCode, ignored -> new MutableSku(skuCode));
+            sku.packages += packages;
+            sku.quantity += value(detail.getProductQuantity());
+            sku.nameZh = first(sku.nameZh, detail.getProductNameZh());
+            sku.detailIds.add(detail.getId());
+        }
+        if (frozenPackages != value(line.getRequiredPackageCount())) {
+            throw conflict("Frozen SKU package totals must equal the inbound line required packages");
+        }
+        if (grouped.isEmpty()) throw conflict("Inbound line has no positive frozen SKU packages");
+        return grouped.values().stream().map(MutableSku::snapshot).toList();
+    }
+
+    private void persist(String tenantId, InboundPlan plan, InboundPdaTask task, InboundPlanLine line,
+                         InboundPlanPalletAllocation allocation, InboundPlanPallet pallet,
+                         LastlegOrder order, SkuReceipt sku, long packages, long quantity,
+                         LocalDateTime receivedAt) {
+        if (packages <= 0 || pallet.getWarehousePalletId() == null) {
+            throw conflict("Stock-in requires a positive package count and an assigned warehouse pallet");
+        }
+        String destinationCode = required(first(line.getDestinationWarehouseCode(), order.getFbaWarehouseCode()),
+            "Destination warehouse code is required for stock-in");
+        String overseasWarehouseId = required(order.getOverseasWarehouseId(),
+            "Actual overseas warehouse ID is required for stock-in");
+        String palletNo = required(pallet.getPalletNo(), "Pallet number is required for stock-in");
+        String locationCode = "LOC-" + overseasWarehouseId + "-DEFAULT";
+        String operationKey = "PDA_STOCK_IN:" + task.getId() + ":" + allocation.getId() + ":" + sku.skuCode();
+        InventoryCommandResponse result = inventory.stockIn(tenantId, task.getOperatorId(),
+            new InventoryCommandRequests.StockIn(null, order.getCustomerName(), overseasWarehouseId,
+                null, order.getOverseasWarehouseName(), line.getDestinationWarehouseId(), destinationCode,
+                line.getDestinationWarehouseName(), sku.skuCode(), sku.nameZh(), pallet.getWarehousePalletId(),
+                palletNo, plan.getPlanNo(), pallet.getWarehouseLocationId(), locationCode,
+                packages, quantity, order.getOrderNo(), plan.getPlanNo(), order.getSourceEventId(), operationKey,
+                "PDA inbound completion for " + line.getInboundCode()));
+
+        InboundStockReceipt receipt = new InboundStockReceipt();
+        receipt.setId(IdWorker.getId());
+        receipt.setTenantId(tenantId);
+        receipt.setPlanId(plan.getId());
+        receipt.setTaskId(task.getId());
+        receipt.setAllocationId(allocation.getId());
+        receipt.setLineId(line.getId());
+        receipt.setOrderId(order.getId());
+        receipt.setInboundCode(line.getInboundCode());
+        receipt.setSkuCode(sku.skuCode());
+        receipt.setSkuNameZh(sku.nameZh());
+        receipt.setSourceDetailIds(sku.detailIds());
+        receipt.setWarehousePalletId(pallet.getWarehousePalletId());
+        receipt.setPalletNo(palletNo);
+        receipt.setWarehouseLocationId(pallet.getWarehouseLocationId());
+        receipt.setWarehouseLocationCode(locationCode);
+        receipt.setBatchNo(plan.getPlanNo());
+        receipt.setReceivedPackages(packages);
+        receipt.setReceivedQuantity(quantity);
+        receipt.setInventoryBalanceId(result.balanceId());
+        receipt.setInventoryPositionId(result.positionId());
+        receipt.setInventoryOperationKey(operationKey);
+        receipt.setReceivedAt(receivedAt);
+        receipt.setCreatedAt(receivedAt);
+        receipts.insert(receipt);
+    }
+
+    private static InboundPlanPallet requirePallet(Map<Long, InboundPlanPallet> pallets,
+                                                   InboundPlanPalletAllocation allocation) {
+        InboundPlanPallet pallet = pallets.get(allocation.getPalletId());
+        if (pallet == null) throw conflict("PDA allocation pallet is missing");
+        return pallet;
+    }
+
+    private static long proportionalCumulative(long quantity, long packages, long totalPackages) {
+        return Math.floorDiv(Math.multiplyExact(quantity, packages), totalPackages);
+    }
+
+    private static String required(String value, String message) {
+        String normalized = trim(value);
+        if (normalized == null) throw conflict(message);
+        return normalized;
+    }
+
+    private static String first(String first, String second) {
+        String normalized = trim(first);
+        return normalized == null ? trim(second) : normalized;
+    }
+
+    private static String trim(String value) { return value == null || value.isBlank() ? null : value.trim(); }
+    private static long value(Integer value) { return value == null ? 0L : value.longValue(); }
+    private static ResponseStatusException conflict(String message) {
+        return new ResponseStatusException(HttpStatus.CONFLICT, message);
+    }
+
+    private static final class MutableSku {
+        private final String skuCode;
+        private String nameZh;
+        private long packages;
+        private long quantity;
+        private final List<Long> detailIds = new ArrayList<>();
+
+        private MutableSku(String skuCode) { this.skuCode = skuCode; }
+        private SkuReceipt snapshot() {
+            return new SkuReceipt(skuCode, nameZh, packages, quantity,
+                detailIds.stream().filter(Objects::nonNull).map(String::valueOf).collect(Collectors.joining(",")));
+        }
+    }
+
+    private record SkuReceipt(String skuCode, String nameZh, long packages, long quantity, String detailIds) {}
+}

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/service/InboundFbaAppointmentService.java

@@ -0,0 +1,180 @@
+package com.baiyue.lastleg.inboundplan.service;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.toolkit.IdWorker;
+import com.baiyue.lastleg.inboundplan.dto.BatchFbaAppointmentRequest;
+import com.baiyue.lastleg.inboundplan.dto.FbaAppointmentResponse;
+import com.baiyue.lastleg.inboundplan.entity.InboundFbaAppointment;
+import com.baiyue.lastleg.inboundplan.entity.InboundFbaAppointmentItem;
+import com.baiyue.lastleg.inboundplan.mapper.InboundFbaAppointmentItemMapper;
+import com.baiyue.lastleg.inboundplan.mapper.InboundFbaAppointmentMapper;
+import com.baiyue.lastleg.inboundplan.mapper.InboundFbaAppointmentQueryMapper;
+import com.baiyue.lastleg.inboundplan.model.FbaAppointmentLineSnapshot;
+import com.baiyue.lastleg.inboundplan.model.FbaAppointmentStatus;
+import jakarta.annotation.Resource;
+import org.springframework.http.HttpStatus;
+import org.springframework.dao.DuplicateKeyException;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.time.LocalDateTime;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Locale;
+import java.util.Objects;
+import java.util.Set;
+
+@Service
+public class InboundFbaAppointmentService {
+    @Resource private InboundFbaAppointmentMapper appointmentMapper;
+    @Resource private InboundFbaAppointmentItemMapper itemMapper;
+    @Resource private InboundFbaAppointmentQueryMapper queryMapper;
+
+    @Transactional
+    public FbaAppointmentResponse batchCreate(String tenantId, String operatorId,
+                                               BatchFbaAppointmentRequest request) {
+        List<Long> lineIds = List.copyOf(request.lineIds());
+        if (new HashSet<>(lineIds).size() != lineIds.size()) {
+            throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Selected inbound lines contain duplicates");
+        }
+        String appointmentNo = requiredTrimmed(request.appointmentNo(), "Appointment number is required");
+        String status = normalizeStatus(request.appointmentStatus());
+        String remark = trimToNull(request.appointmentRemark());
+
+        InboundFbaAppointment existing = find(tenantId, appointmentNo);
+        if (existing != null) {
+            return verifyReplay(existing, lineIds, request.appointmentAt(), status, remark);
+        }
+
+        List<FbaAppointmentLineSnapshot> lines = queryMapper.lockLines(tenantId, lineIds);
+        if (lines.size() != lineIds.size()) {
+            throw new ResponseStatusException(HttpStatus.NOT_FOUND,
+                "One or more selected inbound lines do not exist in this tenant");
+        }
+        String fbaWarehouseCode = commonFbaWarehouse(lines);
+
+        // The row locks serialize concurrent submissions selecting the same inbound lines.
+        existing = find(tenantId, appointmentNo);
+        if (existing != null) {
+            return verifyReplay(existing, lineIds, request.appointmentAt(), status, remark);
+        }
+
+        LocalDateTime now = LocalDateTime.now();
+        InboundFbaAppointment appointment = new InboundFbaAppointment();
+        appointment.setId(IdWorker.getId());
+        appointment.setTenantId(tenantId);
+        appointment.setAppointmentNo(appointmentNo);
+        appointment.setAppointmentAt(request.appointmentAt());
+        appointment.setAppointmentStatus(status);
+        appointment.setAppointmentRemark(remark);
+        appointment.setFbaWarehouseCode(fbaWarehouseCode);
+        appointment.setSelectedCount(lines.size());
+        appointment.setCreatedBy(trimToNull(operatorId));
+        appointment.setCreatedAt(now);
+        appointment.setUpdatedAt(now);
+        try {
+            appointmentMapper.insert(appointment);
+        } catch (DuplicateKeyException exception) {
+            InboundFbaAppointment concurrent = find(tenantId, appointmentNo);
+            if (concurrent != null) {
+                return verifyReplay(concurrent, lineIds, request.appointmentAt(), status, remark);
+            }
+            throw exception;
+        }
+
+        for (FbaAppointmentLineSnapshot line : lines) {
+            InboundFbaAppointmentItem item = new InboundFbaAppointmentItem();
+            item.setId(IdWorker.getId());
+            item.setAppointmentId(appointment.getId());
+            item.setPlanId(line.planId());
+            item.setLineId(line.lineId());
+            item.setOrderId(line.orderId());
+            item.setInboundCode(line.inboundCode());
+            item.setFbaWarehouseCode(line.fbaWarehouseCode());
+            item.setCreatedAt(now);
+            itemMapper.insert(item);
+        }
+        return response(appointment, items(appointment.getId()));
+    }
+
+    @Transactional(readOnly = true)
+    public FbaAppointmentResponse detail(String tenantId, String appointmentNo) {
+        InboundFbaAppointment appointment = find(tenantId,
+            requiredTrimmed(appointmentNo, "Appointment number is required"));
+        if (appointment == null) {
+            throw new ResponseStatusException(HttpStatus.NOT_FOUND, "FBA appointment not found");
+        }
+        return response(appointment, items(appointment.getId()));
+    }
+
+    private FbaAppointmentResponse verifyReplay(InboundFbaAppointment existing, List<Long> requestedLineIds,
+                                                LocalDateTime appointmentAt, String status, String remark) {
+        List<InboundFbaAppointmentItem> existingItems = items(existing.getId());
+        Set<Long> existingLineIds = existingItems.stream()
+            .map(InboundFbaAppointmentItem::getLineId).collect(java.util.stream.Collectors.toSet());
+        if (!Objects.equals(existing.getAppointmentAt(), appointmentAt)
+            || !Objects.equals(existing.getAppointmentStatus(), status)
+            || !Objects.equals(existing.getAppointmentRemark(), remark)
+            || existingLineIds.size() != requestedLineIds.size()
+            || !existingLineIds.equals(new HashSet<>(requestedLineIds))) {
+            throw new ResponseStatusException(HttpStatus.CONFLICT,
+                "Appointment number already exists with different appointment data");
+        }
+        return response(existing, existingItems);
+    }
+
+    private String commonFbaWarehouse(List<FbaAppointmentLineSnapshot> lines) {
+        List<String> warehouses = lines.stream().map(FbaAppointmentLineSnapshot::fbaWarehouseCode)
+            .map(InboundFbaAppointmentService::trimToNull).toList();
+        if (warehouses.stream().anyMatch(Objects::isNull) || new HashSet<>(warehouses).size() != 1) {
+            throw new ResponseStatusException(HttpStatus.BAD_REQUEST,
+                "Selected inbound lines must belong to the same non-empty FBA warehouse");
+        }
+        return warehouses.get(0);
+    }
+
+    private InboundFbaAppointment find(String tenantId, String appointmentNo) {
+        return appointmentMapper.selectOne(new LambdaQueryWrapper<InboundFbaAppointment>()
+            .eq(InboundFbaAppointment::getTenantId, tenantId)
+            .eq(InboundFbaAppointment::getAppointmentNo, appointmentNo));
+    }
+
+    private List<InboundFbaAppointmentItem> items(Long appointmentId) {
+        return itemMapper.selectList(new LambdaQueryWrapper<InboundFbaAppointmentItem>()
+            .eq(InboundFbaAppointmentItem::getAppointmentId, appointmentId)
+            .orderByAsc(InboundFbaAppointmentItem::getLineId));
+    }
+
+    private FbaAppointmentResponse response(InboundFbaAppointment appointment,
+                                            List<InboundFbaAppointmentItem> items) {
+        return new FbaAppointmentResponse(appointment.getId(), appointment.getTenantId(),
+            appointment.getAppointmentNo(), appointment.getAppointmentAt(), appointment.getAppointmentStatus(),
+            appointment.getAppointmentRemark(), appointment.getFbaWarehouseCode(), appointment.getSelectedCount(),
+            appointment.getCreatedBy(), appointment.getCreatedAt(), appointment.getUpdatedAt(),
+            items.stream().map(item -> new FbaAppointmentResponse.Item(item.getId(), item.getPlanId(),
+                item.getLineId(), item.getOrderId(), item.getInboundCode(), item.getFbaWarehouseCode())).toList());
+    }
+
+    private static String normalizeStatus(String value) {
+        String normalized = requiredTrimmed(value, "Appointment status is required").toUpperCase(Locale.ROOT);
+        try {
+            return FbaAppointmentStatus.valueOf(normalized).name();
+        } catch (IllegalArgumentException exception) {
+            throw new ResponseStatusException(HttpStatus.BAD_REQUEST,
+                "Appointment status must be PENDING, SUCCESS, FAILED or CANCELLED");
+        }
+    }
+
+    private static String requiredTrimmed(String value, String message) {
+        String normalized = trimToNull(value);
+        if (normalized == null) {
+            throw new ResponseStatusException(HttpStatus.BAD_REQUEST, message);
+        }
+        return normalized;
+    }
+
+    private static String trimToNull(String value) {
+        return value == null || value.isBlank() ? null : value.trim();
+    }
+}

lastleg/src/main/java/com/baiyue/lastleg/inboundplan/service/InboundPlanService.java

@@ -115,6 +115,7 @@ public class InboundPlanService {
             line.setPlanId(plan.getId());
             line.setOrderId(order.orderId());
             line.setInboundCode(order.inboundCode());
+            line.setFbaWarehouseCode(order.fbaWarehouseCode());
             line.setDestinationWarehouseId(order.destinationWarehouseId());
             line.setDestinationWarehouseCode(order.destinationWarehouseCode());
             line.setDestinationWarehouseName(order.destinationWarehouseName());
@@ -208,7 +209,7 @@ public class InboundPlanService {
                 .orderByAsc(InboundPlanPalletAllocation::getId));
         return new InboundPlanResponse(plan.getId(), plan.getPlanNo(), plan.getTenantId(), plan.getContainerNo(),
             plan.getStatus(), plan.getLineCount(), plan.getPalletCount(), plan.getTotalVolumeCbm(),
-            lines.stream().map(line -> new InboundPlanResponse.Line(line.getId(), line.getOrderId(), line.getInboundCode(),
+            lines.stream().map(line -> new InboundPlanResponse.Line(line.getId(), line.getOrderId(), line.getInboundCode(), line.getFbaWarehouseCode(),
                 line.getDestinationWarehouseId(), line.getDestinationWarehouseCode(), line.getDestinationWarehouseName(),
                 line.getVolumeCbm(), line.getRequiredPackageCount(), line.getPlannedPalletCount())).toList(),
             pallets.stream().map(pallet -> new InboundPlanResponse.Pallet(pallet.getId(), pallet.getPalletNo(),

lastleg/src/main/java/com/baiyue/lastleg/inventory/InventoryMapperConfiguration.java

@@ -0,0 +1,9 @@
+package com.baiyue.lastleg.inventory;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@MapperScan("com.baiyue.lastleg.inventory.mapper")
+public class InventoryMapperConfiguration {
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/command/InventoryCommandMapperConfiguration.java

@@ -0,0 +1,9 @@
+package com.baiyue.lastleg.inventory.command;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@MapperScan("com.baiyue.lastleg.inventory.command.mapper")
+public class InventoryCommandMapperConfiguration {
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/command/controller/InventoryCommandController.java

@@ -0,0 +1,97 @@
+package com.baiyue.lastleg.inventory.command.controller;
+
+import com.baiyue.common.core.api.ApiResponse;
+import com.baiyue.common.security.AuthenticatedUser;
+import com.baiyue.lastleg.inventory.command.dto.InventoryCommandRequests;
+import com.baiyue.lastleg.inventory.command.dto.InventoryCommandResponse;
+import com.baiyue.lastleg.inventory.command.service.InventoryCommandService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.annotation.Resource;
+import jakarta.validation.Valid;
+import org.springframework.http.HttpStatus;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.server.ResponseStatusException;
+
+@RestController
+@RequestMapping("/api/platform/v1/last-leg/inventory")
+@Tag(name = "Tail-leg SKU package inventory commands")
+public class InventoryCommandController {
+    @Resource private InventoryCommandService service;
+
+    @PostMapping("/stock-in")
+    @Operation(summary = "Put SKU packages into an overseas warehouse pallet")
+    public ApiResponse<InventoryCommandResponse> stockIn(@AuthenticationPrincipal AuthenticatedUser user,
+                                                          @Valid @RequestBody InventoryCommandRequests.StockIn request) {
+        return ApiResponse.success(service.stockIn(scope(user, request.tenantId()), operator(user), request));
+    }
+
+    @PostMapping("/hold")
+    @Operation(summary = "Move available SKU packages to hold")
+    public ApiResponse<InventoryCommandResponse> hold(@AuthenticationPrincipal AuthenticatedUser user,
+                                                       @Valid @RequestBody InventoryCommandRequests.Move request) {
+        return ApiResponse.success(service.hold(scope(user, request.tenantId()), operator(user), request));
+    }
+
+    @PostMapping("/release")
+    @Operation(summary = "Release held SKU packages")
+    public ApiResponse<InventoryCommandResponse> release(@AuthenticationPrincipal AuthenticatedUser user,
+                                                          @Valid @RequestBody InventoryCommandRequests.Move request) {
+        return ApiResponse.success(service.release(scope(user, request.tenantId()), operator(user), request));
+    }
+
+    @PostMapping("/allocate")
+    @Operation(summary = "Allocate available SKU packages to an outbound order")
+    public ApiResponse<InventoryCommandResponse> allocate(@AuthenticationPrincipal AuthenticatedUser user,
+                                                           @Valid @RequestBody InventoryCommandRequests.Move request) {
+        return ApiResponse.success(service.allocate(scope(user, request.tenantId()), operator(user), request));
+    }
+
+    @PostMapping("/unallocate")
+    @Operation(summary = "Cancel an outbound allocation")
+    public ApiResponse<InventoryCommandResponse> unallocate(@AuthenticationPrincipal AuthenticatedUser user,
+                                                             @Valid @RequestBody InventoryCommandRequests.Move request) {
+        return ApiResponse.success(service.unallocate(scope(user, request.tenantId()), operator(user), request));
+    }
+
+    @PostMapping("/pick")
+    @Operation(summary = "Confirm picked SKU packages")
+    public ApiResponse<InventoryCommandResponse> pick(@AuthenticationPrincipal AuthenticatedUser user,
+                                                       @Valid @RequestBody InventoryCommandRequests.Move request) {
+        return ApiResponse.success(service.pick(scope(user, request.tenantId()), operator(user), request));
+    }
+
+    @PostMapping("/ship")
+    @Operation(summary = "Ship picked SKU packages and report whether the pallet is empty")
+    public ApiResponse<InventoryCommandResponse> ship(@AuthenticationPrincipal AuthenticatedUser user,
+                                                       @Valid @RequestBody InventoryCommandRequests.Move request) {
+        return ApiResponse.success(service.ship(scope(user, request.tenantId()), operator(user), request));
+    }
+
+    @PostMapping("/adjust")
+    @Operation(summary = "Adjust SKU package inventory after a physical count")
+    public ApiResponse<InventoryCommandResponse> adjust(@AuthenticationPrincipal AuthenticatedUser user,
+                                                         @Valid @RequestBody InventoryCommandRequests.Adjustment request) {
+        return ApiResponse.success(service.adjust(scope(user, request.tenantId()), operator(user), request));
+    }
+
+    private String scope(AuthenticatedUser user, String requestedTenant) {
+        if (user == null || user.tenantId() == null) throw new ResponseStatusException(HttpStatus.UNAUTHORIZED);
+        if ("PLATFORM".equals(user.appCode()) && user.tenantId() == 0L) {
+            if (requestedTenant == null || requestedTenant.isBlank() || "0".equals(requestedTenant)) {
+                throw new ResponseStatusException(HttpStatus.BAD_REQUEST,
+                    "Platform request must specify target tenant");
+            }
+            return requestedTenant.trim();
+        }
+        return String.valueOf(user.tenantId());
+    }
+
+    private String operator(AuthenticatedUser user) {
+        return user.userId() == null ? user.username() : String.valueOf(user.userId());
+    }
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/command/dto/InventoryCommandRequests.java

@@ -0,0 +1,63 @@
+package com.baiyue.lastleg.inventory.command.dto;
+
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Positive;
+import jakarta.validation.constraints.PositiveOrZero;
+import jakarta.validation.constraints.Size;
+
+public final class InventoryCommandRequests {
+    private InventoryCommandRequests() {
+    }
+
+    public record StockIn(
+        String tenantId,
+        String customerName,
+        @NotBlank String overseasWarehouseId,
+        String overseasWarehouseCode,
+        String overseasWarehouseName,
+        String destinationWarehouseId,
+        @NotBlank String destinationWarehouseCode,
+        String destinationWarehouseName,
+        @NotBlank String skuCode,
+        String skuNameZh,
+        @NotNull Long palletId,
+        @NotBlank String palletNo,
+        String batchNo,
+        Long warehouseLocationId,
+        String warehouseLocationCode,
+        @Positive long packages,
+        @PositiveOrZero long productQuantity,
+        String businessOrderNo,
+        String inboundOrderNo,
+        String sourceEventId,
+        @NotBlank @Size(max = 255) String idempotencyKey,
+        @Size(max = 1000) String remark
+    ) {
+    }
+
+    public record Move(
+        String tenantId,
+        @NotNull Long positionId,
+        @Positive long packages,
+        @PositiveOrZero long productQuantity,
+        String businessOrderNo,
+        String outboundOrderNo,
+        String sourceEventId,
+        @NotBlank @Size(max = 255) String idempotencyKey,
+        @Size(max = 1000) String remark
+    ) {
+    }
+
+    public record Adjustment(
+        String tenantId,
+        @NotNull Long positionId,
+        long packageDelta,
+        long quantityDelta,
+        @NotBlank String reason,
+        String businessOrderNo,
+        @NotBlank @Size(max = 255) String idempotencyKey,
+        @Size(max = 1000) String remark
+    ) {
+    }
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/command/dto/InventoryCommandResponse.java

@@ -0,0 +1,19 @@
+package com.baiyue.lastleg.inventory.command.dto;
+
+public record InventoryCommandResponse(
+    Long operationId,
+    String operationType,
+    Long balanceId,
+    Long positionId,
+    long availablePackages,
+    long holdPackages,
+    long allocatedPackages,
+    long pickedPackages,
+    boolean palletEmpty,
+    boolean replayed
+) {
+    public InventoryCommandResponse asReplay() {
+        return new InventoryCommandResponse(operationId, operationType, balanceId, positionId,
+            availablePackages, holdPackages, allocatedPackages, pickedPackages, palletEmpty, true);
+    }
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/command/mapper/InventoryCommandMapper.java

@@ -0,0 +1,22 @@
+package com.baiyue.lastleg.inventory.command.mapper;
+
+import com.baiyue.lastleg.inventory.entity.InventoryBalance;
+import com.baiyue.lastleg.inventory.entity.InventoryPosition;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+@Mapper
+public interface InventoryCommandMapper {
+    @Select("SELECT * FROM ll_inventory_position WHERE tenant_id=#{tenantId} AND id=#{positionId} LIMIT 1 FOR UPDATE")
+    InventoryPosition lockPosition(@Param("tenantId") String tenantId,
+                                   @Param("positionId") Long positionId);
+
+    @Select("SELECT * FROM ll_inventory_balance WHERE tenant_id=#{tenantId} AND id=#{balanceId} LIMIT 1 FOR UPDATE")
+    InventoryBalance lockBalance(@Param("tenantId") String tenantId,
+                                 @Param("balanceId") Long balanceId);
+
+    @Select("SELECT COALESCE(SUM(available_packages+hold_packages+allocated_packages+picked_packages+receiving_packages),0) " +
+        "FROM ll_inventory_position WHERE tenant_id=#{tenantId} AND pallet_id=#{palletId}")
+    long palletPackages(@Param("tenantId") String tenantId, @Param("palletId") Long palletId);
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/command/service/InventoryCommandService.java

@@ -0,0 +1,493 @@
+package com.baiyue.lastleg.inventory.command.service;
+
+import com.baomidou.mybatisplus.core.toolkit.IdWorker;
+import com.baiyue.lastleg.inventory.command.dto.InventoryCommandRequests;
+import com.baiyue.lastleg.inventory.command.dto.InventoryCommandResponse;
+import com.baiyue.lastleg.inventory.command.mapper.InventoryCommandMapper;
+import com.baiyue.lastleg.inventory.entity.InventoryBalance;
+import com.baiyue.lastleg.inventory.entity.InventoryLedger;
+import com.baiyue.lastleg.inventory.entity.InventoryOperation;
+import com.baiyue.lastleg.inventory.entity.InventoryPosition;
+import com.baiyue.lastleg.inventory.mapper.InventoryBalanceMapper;
+import com.baiyue.lastleg.inventory.mapper.InventoryLedgerMapper;
+import com.baiyue.lastleg.inventory.mapper.InventoryOperationMapper;
+import com.baiyue.lastleg.inventory.mapper.InventoryPositionMapper;
+import com.baiyue.lastleg.inboundplan.pda.gateway.WarehouseResourceGateway;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import jakarta.annotation.Resource;
+import org.springframework.dao.DuplicateKeyException;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.time.LocalDateTime;
+import java.util.HexFormat;
+
+@Service
+public class InventoryCommandService {
+    @Resource private InventoryBalanceMapper balances;
+    @Resource private InventoryPositionMapper positions;
+    @Resource private InventoryLedgerMapper ledgers;
+    @Resource private InventoryOperationMapper operations;
+    @Resource private InventoryCommandMapper commands;
+    @Resource private WarehouseResourceGateway warehouseGateway;
+    @Resource private ObjectMapper objectMapper;
+
+    @Transactional
+    public InventoryCommandResponse stockIn(String tenantId, String operatorId,
+                                            InventoryCommandRequests.StockIn request) {
+        return execute(tenantId, operatorId, "STOCK_IN", request.idempotencyKey(), request, operation -> {
+            InventoryBalance balance = balance(tenantId, request);
+            InventoryPosition position = position(tenantId, balance, request);
+            long before = value(position.getAvailablePackages());
+            position.setAvailablePackages(before + request.packages());
+            position.setProductQuantity(value(position.getProductQuantity()) + request.productQuantity());
+            position.setStatus("OCCUPIED");
+            position.setVersion(value(position.getVersion()) + 1);
+            position.setUpdatedAt(LocalDateTime.now());
+            positions.updateById(position);
+
+            balance.setAvailablePackages(value(balance.getAvailablePackages()) + request.packages());
+            balance.setAvailableQuantity(value(balance.getAvailableQuantity()) + request.productQuantity());
+            touch(balance);
+            balances.updateById(balance);
+            ledger(tenantId, operatorId, operation.getId(), balance, position, "STOCK_IN",
+                "OUTSIDE", "AVAILABLE", before, request.packages(), before + request.packages(),
+                request.businessOrderNo(), request.inboundOrderNo(), null, request.sourceEventId(),
+                request.idempotencyKey(), value(balance.getAvailableQuantity()) - request.productQuantity(),
+                request.productQuantity(), value(balance.getAvailableQuantity()), request.remark());
+            return response(operation, balance, position, false);
+        });
+    }
+
+    @Transactional
+    public InventoryCommandResponse hold(String tenantId, String operatorId, InventoryCommandRequests.Move request) {
+        return move(tenantId, operatorId, "HOLD", Bucket.AVAILABLE, Bucket.HOLD, request);
+    }
+
+    @Transactional
+    public InventoryCommandResponse release(String tenantId, String operatorId, InventoryCommandRequests.Move request) {
+        return move(tenantId, operatorId, "RELEASE", Bucket.HOLD, Bucket.AVAILABLE, request);
+    }
+
+    @Transactional
+    public InventoryCommandResponse allocate(String tenantId, String operatorId, InventoryCommandRequests.Move request) {
+        return move(tenantId, operatorId, "ALLOCATE", Bucket.AVAILABLE, Bucket.ALLOCATED, request);
+    }
+
+    @Transactional
+    public InventoryCommandResponse unallocate(String tenantId, String operatorId, InventoryCommandRequests.Move request) {
+        return move(tenantId, operatorId, "UNALLOCATE", Bucket.ALLOCATED, Bucket.AVAILABLE, request);
+    }
+
+    @Transactional
+    public InventoryCommandResponse pick(String tenantId, String operatorId, InventoryCommandRequests.Move request) {
+        return move(tenantId, operatorId, "PICK", Bucket.ALLOCATED, Bucket.PICKED, request);
+    }
+
+    @Transactional
+    public InventoryCommandResponse ship(String tenantId, String operatorId, InventoryCommandRequests.Move request) {
+        return execute(tenantId, operatorId, "SHIP", request.idempotencyKey(), request, operation -> {
+            Locked locked = locked(tenantId, request.positionId());
+            InventoryPosition position = locked.position();
+            InventoryBalance balance = locked.balance();
+            requireAtLeast(value(position.getPickedPackages()), request.packages(), "picked");
+            requireAtLeast(value(position.getProductQuantity()), request.productQuantity(), "product quantity");
+            requireAtLeast(value(balance.getPickedPackages()), request.packages(), "balance picked");
+            requireAtLeast(value(balance.getPickedQuantity()), request.productQuantity(), "balance picked quantity");
+            long before = value(position.getPickedPackages());
+            long beforeQuantity = value(balance.getPickedQuantity());
+            position.setPickedPackages(before - request.packages());
+            position.setProductQuantity(value(position.getProductQuantity()) - request.productQuantity());
+            position.setStatus(positionPackages(position) == 0 ? "EMPTY" : "OCCUPIED");
+            position.setVersion(value(position.getVersion()) + 1);
+            position.setUpdatedAt(LocalDateTime.now());
+            positions.updateById(position);
+
+            balance.setPickedPackages(value(balance.getPickedPackages()) - request.packages());
+            balance.setPickedQuantity(value(balance.getPickedQuantity()) - request.productQuantity());
+            touch(balance);
+            balances.updateById(balance);
+            boolean palletEmpty = commands.palletPackages(tenantId, position.getPalletId()) == 0;
+            if (palletEmpty) warehouseGateway.scrapPallet(tenantId, position.getPalletId());
+            ledger(tenantId, operatorId, operation.getId(), balance, position, "SHIP",
+                "PICKED", "SHIPPED", before, -request.packages(), before - request.packages(),
+                request.businessOrderNo(), null, request.outboundOrderNo(), request.sourceEventId(),
+                request.idempotencyKey(), beforeQuantity, -request.productQuantity(),
+                value(balance.getPickedQuantity()), request.remark());
+            return response(operation, balance, position, palletEmpty);
+        });
+    }
+
+    @Transactional
+    public InventoryCommandResponse adjust(String tenantId, String operatorId,
+                                            InventoryCommandRequests.Adjustment request) {
+        if (request.packageDelta() == 0 && request.quantityDelta() == 0) {
+            throw badRequest("Adjustment package and quantity deltas cannot both be zero");
+        }
+        return execute(tenantId, operatorId, "ADJUST", request.idempotencyKey(), request, operation -> {
+            Locked locked = locked(tenantId, request.positionId());
+            InventoryPosition position = locked.position();
+            InventoryBalance balance = locked.balance();
+            long before = value(position.getAvailablePackages());
+            long after = before + request.packageDelta();
+            long quantityAfter = value(position.getProductQuantity()) + request.quantityDelta();
+            long balanceAfter = value(balance.getAvailablePackages()) + request.packageDelta();
+            long balanceQuantityBefore = value(balance.getAvailableQuantity());
+            long balanceQuantityAfter = balanceQuantityBefore + request.quantityDelta();
+            if (after < 0 || quantityAfter < 0 || balanceAfter < 0 || balanceQuantityAfter < 0) {
+                throw conflict("Adjustment would make inventory negative");
+            }
+            position.setAvailablePackages(after);
+            position.setProductQuantity(quantityAfter);
+            position.setStatus(positionPackages(position) == 0 ? "EMPTY" : "OCCUPIED");
+            position.setVersion(value(position.getVersion()) + 1);
+            position.setUpdatedAt(LocalDateTime.now());
+            positions.updateById(position);
+            balance.setAvailablePackages(balanceAfter);
+            balance.setAvailableQuantity(balanceQuantityAfter);
+            touch(balance);
+            balances.updateById(balance);
+            ledger(tenantId, operatorId, operation.getId(), balance, position, "ADJUST",
+                "AVAILABLE", "AVAILABLE", before, request.packageDelta(), after,
+                request.businessOrderNo(), null, null, null, request.idempotencyKey(),
+                balanceQuantityBefore, request.quantityDelta(), balanceQuantityAfter,
+                request.reason() + remarkSuffix(request.remark()));
+            return response(operation, balance, position, false);
+        });
+    }
+
+    private InventoryCommandResponse move(String tenantId, String operatorId, String operationType,
+                                          Bucket from, Bucket to, InventoryCommandRequests.Move request) {
+        return execute(tenantId, operatorId, operationType, request.idempotencyKey(), request, operation -> {
+            Locked locked = locked(tenantId, request.positionId());
+            InventoryPosition position = locked.position();
+            InventoryBalance balance = locked.balance();
+            requireAtLeast(packages(position, from), request.packages(), from.name().toLowerCase());
+            requireAtLeast(packages(balance, from), request.packages(), "balance " + from.name().toLowerCase());
+            requireAtLeast(quantity(balance, from), request.productQuantity(),
+                "balance " + from.name().toLowerCase() + " quantity");
+            long beforeTarget = packages(position, to);
+            long beforeTargetQuantity = quantity(balance, to);
+            packages(position, from, packages(position, from) - request.packages());
+            packages(position, to, beforeTarget + request.packages());
+            position.setVersion(value(position.getVersion()) + 1);
+            position.setUpdatedAt(LocalDateTime.now());
+            positions.updateById(position);
+
+            packages(balance, from, packages(balance, from) - request.packages());
+            packages(balance, to, packages(balance, to) + request.packages());
+            quantity(balance, from, quantity(balance, from) - request.productQuantity());
+            quantity(balance, to, quantity(balance, to) + request.productQuantity());
+            touch(balance);
+            balances.updateById(balance);
+            ledger(tenantId, operatorId, operation.getId(), balance, position, operationType,
+                from.name(), to.name(), beforeTarget, request.packages(), beforeTarget + request.packages(),
+                request.businessOrderNo(), null, request.outboundOrderNo(), request.sourceEventId(),
+                request.idempotencyKey(), beforeTargetQuantity, request.productQuantity(),
+                quantity(balance, to), request.remark());
+            return response(operation, balance, position, false);
+        });
+    }
+
+    private InventoryBalance balance(String tenantId, InventoryCommandRequests.StockIn request) {
+        InventoryBalance balance = balances.lockDimension(tenantId, request.overseasWarehouseId(),
+            request.destinationWarehouseCode(), request.skuCode());
+        if (balance != null) return balance;
+        balance = new InventoryBalance();
+        balance.setId(IdWorker.getId());
+        balance.setTenantId(tenantId);
+        balance.setCustomerName(trim(request.customerName()));
+        balance.setOverseasWarehouseId(request.overseasWarehouseId().trim());
+        balance.setOverseasWarehouseCode(trim(request.overseasWarehouseCode()));
+        balance.setOverseasWarehouseName(trim(request.overseasWarehouseName()));
+        balance.setDestinationWarehouseId(trim(request.destinationWarehouseId()));
+        balance.setDestinationWarehouseCode(request.destinationWarehouseCode().trim());
+        balance.setDestinationWarehouseName(trim(request.destinationWarehouseName()));
+        balance.setSkuCode(request.skuCode().trim());
+        balance.setSkuNameZh(trim(request.skuNameZh()));
+        zero(balance);
+        balance.setVersion(0L);
+        balance.setCreatedAt(LocalDateTime.now());
+        balance.setUpdatedAt(balance.getCreatedAt());
+        try {
+            balances.insert(balance);
+            return balance;
+        } catch (DuplicateKeyException exception) {
+            InventoryBalance concurrent = balances.lockDimension(tenantId, request.overseasWarehouseId(),
+                request.destinationWarehouseCode(), request.skuCode());
+            if (concurrent != null) return concurrent;
+            throw exception;
+        }
+    }
+
+    private InventoryPosition position(String tenantId, InventoryBalance balance,
+                                       InventoryCommandRequests.StockIn request) {
+        String batchNo = trim(request.batchNo()) == null ? "DEFAULT" : request.batchNo().trim();
+        InventoryPosition position = positions.lockPosition(tenantId, balance.getId(), request.palletId(), batchNo);
+        if (position != null) return position;
+        position = new InventoryPosition();
+        position.setId(IdWorker.getId());
+        position.setTenantId(tenantId);
+        position.setBalanceId(balance.getId());
+        position.setOverseasWarehouseId(balance.getOverseasWarehouseId());
+        position.setDestinationWarehouseCode(balance.getDestinationWarehouseCode());
+        position.setSkuCode(balance.getSkuCode());
+        position.setPalletId(request.palletId());
+        position.setPalletNo(request.palletNo().trim());
+        position.setBatchNo(batchNo);
+        position.setWarehouseLocationId(request.warehouseLocationId());
+        String locationCode = trim(request.warehouseLocationCode());
+        position.setWarehouseLocationCode(locationCode == null
+            ? "LOC-" + defaultCode(balance) + "-DEFAULT" : locationCode);
+        position.setAvailablePackages(0L);
+        position.setHoldPackages(0L);
+        position.setAllocatedPackages(0L);
+        position.setPickedPackages(0L);
+        position.setReceivingPackages(0L);
+        position.setProductQuantity(0L);
+        position.setStatus("OCCUPIED");
+        position.setVersion(0L);
+        position.setCreatedAt(LocalDateTime.now());
+        position.setUpdatedAt(position.getCreatedAt());
+        try {
+            positions.insert(position);
+            return position;
+        } catch (DuplicateKeyException exception) {
+            InventoryPosition concurrent = positions.lockPosition(tenantId, balance.getId(), request.palletId(), batchNo);
+            if (concurrent != null) return concurrent;
+            throw exception;
+        }
+    }
+
+    private Locked locked(String tenantId, Long positionId) {
+        InventoryPosition position = commands.lockPosition(tenantId, positionId);
+        if (position == null) throw new ResponseStatusException(HttpStatus.NOT_FOUND, "Inventory position not found");
+        InventoryBalance balance = commands.lockBalance(tenantId, position.getBalanceId());
+        if (balance == null) throw new IllegalStateException("Inventory position balance is missing");
+        return new Locked(balance, position);
+    }
+
+    private InventoryCommandResponse execute(String tenantId, String operatorId, String operationType,
+                                             String key, Object request, Work work) {
+        String normalizedKey = required(key, "Idempotency key is required");
+        String requestHash = hash(request);
+        InventoryOperation existing = operations.findIdempotency(tenantId, normalizedKey);
+        if (existing != null) return replay(existing, operationType, requestHash);
+
+        InventoryOperation operation = new InventoryOperation();
+        operation.setId(IdWorker.getId());
+        operation.setTenantId(tenantId);
+        operation.setIdempotencyKey(normalizedKey);
+        operation.setOperationType(operationType);
+        operation.setRequestHash(requestHash);
+        operation.setStatus("PROCESSING");
+        operation.setCreatedAt(LocalDateTime.now());
+        operation.setUpdatedAt(operation.getCreatedAt());
+        try {
+            operations.insert(operation);
+        } catch (DuplicateKeyException exception) {
+            InventoryOperation concurrent = operations.findIdempotency(tenantId, normalizedKey);
+            if (concurrent != null) return replay(concurrent, operationType, requestHash);
+            throw exception;
+        }
+
+        InventoryCommandResponse response = work.run(operation);
+        operation.setStatus("COMPLETED");
+        operation.setResultJson(write(response));
+        operation.setUpdatedAt(LocalDateTime.now());
+        operations.updateById(operation);
+        return response;
+    }
+
+    private InventoryCommandResponse replay(InventoryOperation operation, String type, String requestHash) {
+        if (!type.equals(operation.getOperationType()) || !requestHash.equals(operation.getRequestHash())) {
+            throw conflict("Idempotency key was already used with a different inventory request");
+        }
+        if (!"COMPLETED".equals(operation.getStatus()) || trim(operation.getResultJson()) == null) {
+            throw conflict("Inventory operation is still processing");
+        }
+        try {
+            return objectMapper.readValue(operation.getResultJson(), InventoryCommandResponse.class).asReplay();
+        } catch (JsonProcessingException exception) {
+            throw new IllegalStateException("Cannot read inventory idempotency result", exception);
+        }
+    }
+
+    private void ledger(String tenantId, String operatorId, Long operationId, InventoryBalance balance,
+                        InventoryPosition position, String businessType, String from, String to,
+                        long beforePackages, long deltaPackages, long afterPackages,
+                        String businessOrderNo, String inboundOrderNo, String outboundOrderNo,
+                        String sourceEventId, String idempotencyKey, long beforeQuantity,
+                        long deltaQuantity, long afterQuantity, String remark) {
+        InventoryLedger ledger = new InventoryLedger();
+        ledger.setId(IdWorker.getId());
+        ledger.setTenantId(tenantId);
+        ledger.setBalanceId(balance.getId());
+        ledger.setPositionId(position.getId());
+        ledger.setOverseasWarehouseId(balance.getOverseasWarehouseId());
+        ledger.setDestinationWarehouseCode(balance.getDestinationWarehouseCode());
+        ledger.setSkuCode(balance.getSkuCode());
+        ledger.setPalletId(position.getPalletId());
+        ledger.setPalletNo(position.getPalletNo());
+        ledger.setBatchNo(position.getBatchNo());
+        ledger.setWarehouseLocationCode(position.getWarehouseLocationCode());
+        ledger.setBusinessType(businessType);
+        ledger.setBusinessOrderNo(trim(businessOrderNo));
+        ledger.setInboundOrderNo(trim(inboundOrderNo));
+        ledger.setOutboundOrderNo(trim(outboundOrderNo));
+        ledger.setSourceEventId(trim(sourceEventId));
+        ledger.setIdempotencyKey(idempotencyKey + ":" + operationId);
+        ledger.setStatusFrom(from);
+        ledger.setStatusTo(to);
+        ledger.setBeforePackages(beforePackages);
+        ledger.setDeltaPackages(deltaPackages);
+        ledger.setAfterPackages(afterPackages);
+        ledger.setBeforeQuantity(beforeQuantity);
+        ledger.setDeltaQuantity(deltaQuantity);
+        ledger.setAfterQuantity(afterQuantity);
+        ledger.setOperatorId(trim(operatorId));
+        ledger.setRemark(trim(remark));
+        ledger.setOccurredAt(LocalDateTime.now());
+        ledger.setCreatedAt(ledger.getOccurredAt());
+        ledgers.insert(ledger);
+    }
+
+    private InventoryCommandResponse response(InventoryOperation operation, InventoryBalance balance,
+                                              InventoryPosition position, boolean palletEmpty) {
+        return new InventoryCommandResponse(operation.getId(), operation.getOperationType(), balance.getId(),
+            position.getId(), value(balance.getAvailablePackages()), value(balance.getHoldPackages()),
+            value(balance.getAllocatedPackages()), value(balance.getPickedPackages()), palletEmpty, false);
+    }
+
+    private static void touch(InventoryBalance balance) {
+        balance.setVersion(value(balance.getVersion()) + 1);
+        balance.setUpdatedAt(LocalDateTime.now());
+    }
+
+    private static void zero(InventoryBalance balance) {
+        balance.setAvailablePackages(0L); balance.setHoldPackages(0L); balance.setAllocatedPackages(0L);
+        balance.setPickedPackages(0L); balance.setInTransitPackages(0L); balance.setReceivingPackages(0L);
+        balance.setProcurementPackages(0L); balance.setAvailableQuantity(0L); balance.setHoldQuantity(0L);
+        balance.setAllocatedQuantity(0L); balance.setPickedQuantity(0L); balance.setInTransitQuantity(0L);
+        balance.setReceivingQuantity(0L); balance.setProcurementQuantity(0L);
+    }
+
+    private static long positionPackages(InventoryPosition position) {
+        return value(position.getAvailablePackages()) + value(position.getHoldPackages())
+            + value(position.getAllocatedPackages()) + value(position.getPickedPackages())
+            + value(position.getReceivingPackages());
+    }
+
+    private static long packages(InventoryPosition position, Bucket bucket) {
+        return switch (bucket) {
+            case AVAILABLE -> value(position.getAvailablePackages());
+            case HOLD -> value(position.getHoldPackages());
+            case ALLOCATED -> value(position.getAllocatedPackages());
+            case PICKED -> value(position.getPickedPackages());
+        };
+    }
+
+    private static void packages(InventoryPosition position, Bucket bucket, long value) {
+        switch (bucket) {
+            case AVAILABLE -> position.setAvailablePackages(value);
+            case HOLD -> position.setHoldPackages(value);
+            case ALLOCATED -> position.setAllocatedPackages(value);
+            case PICKED -> position.setPickedPackages(value);
+        }
+    }
+
+    private static long packages(InventoryBalance balance, Bucket bucket) {
+        return switch (bucket) {
+            case AVAILABLE -> value(balance.getAvailablePackages());
+            case HOLD -> value(balance.getHoldPackages());
+            case ALLOCATED -> value(balance.getAllocatedPackages());
+            case PICKED -> value(balance.getPickedPackages());
+        };
+    }
+
+    private static void packages(InventoryBalance balance, Bucket bucket, long value) {
+        switch (bucket) {
+            case AVAILABLE -> balance.setAvailablePackages(value);
+            case HOLD -> balance.setHoldPackages(value);
+            case ALLOCATED -> balance.setAllocatedPackages(value);
+            case PICKED -> balance.setPickedPackages(value);
+        }
+    }
+
+    private static long quantity(InventoryBalance balance, Bucket bucket) {
+        return switch (bucket) {
+            case AVAILABLE -> value(balance.getAvailableQuantity());
+            case HOLD -> value(balance.getHoldQuantity());
+            case ALLOCATED -> value(balance.getAllocatedQuantity());
+            case PICKED -> value(balance.getPickedQuantity());
+        };
+    }
+
+    private static void quantity(InventoryBalance balance, Bucket bucket, long value) {
+        switch (bucket) {
+            case AVAILABLE -> balance.setAvailableQuantity(value);
+            case HOLD -> balance.setHoldQuantity(value);
+            case ALLOCATED -> balance.setAllocatedQuantity(value);
+            case PICKED -> balance.setPickedQuantity(value);
+        }
+    }
+
+    private String hash(Object value) {
+        try {
+            return HexFormat.of().formatHex(MessageDigest.getInstance("SHA-256")
+                .digest(write(value).getBytes(StandardCharsets.UTF_8)));
+        } catch (NoSuchAlgorithmException exception) {
+            throw new IllegalStateException(exception);
+        }
+    }
+
+    private String write(Object value) {
+        try {
+            return objectMapper.writeValueAsString(value);
+        } catch (JsonProcessingException exception) {
+            throw new IllegalStateException("Cannot serialize inventory operation", exception);
+        }
+    }
+
+    private static String defaultCode(InventoryBalance balance) {
+        String code = trim(balance.getOverseasWarehouseCode());
+        return code == null ? balance.getOverseasWarehouseId() : code;
+    }
+
+    private static void requireAtLeast(long actual, long requested, String field) {
+        if (actual < requested) throw conflict("Insufficient " + field + " packages or quantity");
+    }
+
+    private static String required(String value, String message) {
+        String normalized = trim(value);
+        if (normalized == null) throw badRequest(message);
+        return normalized;
+    }
+
+    private static String trim(String value) {
+        return value == null || value.isBlank() ? null : value.trim();
+    }
+
+    private static String remarkSuffix(String remark) {
+        String value = trim(remark);
+        return value == null ? "" : "; " + value;
+    }
+
+    private static long value(Long value) { return value == null ? 0L : value; }
+    private static ResponseStatusException conflict(String message) {
+        return new ResponseStatusException(HttpStatus.CONFLICT, message);
+    }
+    private static ResponseStatusException badRequest(String message) {
+        return new ResponseStatusException(HttpStatus.BAD_REQUEST, message);
+    }
+
+    private enum Bucket { AVAILABLE, HOLD, ALLOCATED, PICKED }
+    private record Locked(InventoryBalance balance, InventoryPosition position) {}
+    @FunctionalInterface private interface Work { InventoryCommandResponse run(InventoryOperation operation); }
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/entity/InventoryBalance.java

@@ -0,0 +1,43 @@
+package com.baiyue.lastleg.inventory.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+/** Real-time SKU/package balance for one tenant, warehouse, destination and SKU. */
+@Data
+@TableName("ll_inventory_balance")
+public class InventoryBalance {
+    @TableId(type = IdType.ASSIGN_ID)
+    private Long id;
+    private String tenantId;
+    private String customerName;
+    private String overseasWarehouseId;
+    private String overseasWarehouseCode;
+    private String overseasWarehouseName;
+    private String destinationWarehouseId;
+    private String destinationWarehouseCode;
+    private String destinationWarehouseName;
+    private String skuCode;
+    private String skuNameZh;
+    private Long availablePackages;
+    private Long holdPackages;
+    private Long allocatedPackages;
+    private Long pickedPackages;
+    private Long inTransitPackages;
+    private Long receivingPackages;
+    private Long procurementPackages;
+    private Long availableQuantity;
+    private Long holdQuantity;
+    private Long allocatedQuantity;
+    private Long pickedQuantity;
+    private Long inTransitQuantity;
+    private Long receivingQuantity;
+    private Long procurementQuantity;
+    private Long version;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/entity/InventoryLedger.java

@@ -0,0 +1,46 @@
+package com.baiyue.lastleg.inventory.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+/** Append-only inventory fact. Never update or delete this entity. */
+@Data
+@TableName("ll_inventory_ledger")
+public class InventoryLedger {
+    @TableId(type = IdType.ASSIGN_ID)
+    private Long id;
+    private String tenantId;
+    private Long balanceId;
+    private Long positionId;
+    private String overseasWarehouseId;
+    private String destinationWarehouseCode;
+    private String skuCode;
+    private Long palletId;
+    private String palletNo;
+    private String batchNo;
+    private String warehouseLocationCode;
+    private String businessType;
+    private Long businessOrderId;
+    private String businessOrderNo;
+    private String inboundCode;
+    private String inboundOrderNo;
+    private String outboundOrderNo;
+    private String sourceEventId;
+    private String idempotencyKey;
+    private String statusFrom;
+    private String statusTo;
+    private Long beforePackages;
+    private Long deltaPackages;
+    private Long afterPackages;
+    private Long beforeQuantity;
+    private Long deltaQuantity;
+    private Long afterQuantity;
+    private String operatorId;
+    private String remark;
+    private LocalDateTime occurredAt;
+    private LocalDateTime createdAt;
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/entity/InventoryOperation.java

@@ -0,0 +1,25 @@
+package com.baiyue.lastleg.inventory.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+/** Command-level idempotency record for inventory mutations. */
+@Data
+@TableName("ll_inventory_operation")
+public class InventoryOperation {
+    @TableId(type = IdType.ASSIGN_ID)
+    private Long id;
+    private String tenantId;
+    private String idempotencyKey;
+    private String operationType;
+    private String requestHash;
+    private String status;
+    private String resultJson;
+    private String lastError;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/entity/InventoryPosition.java

@@ -0,0 +1,36 @@
+package com.baiyue.lastleg.inventory.entity;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+/** Physical stock snapshot. A location is currently informational only. */
+@Data
+@TableName("ll_inventory_position")
+public class InventoryPosition {
+    @TableId(type = IdType.ASSIGN_ID)
+    private Long id;
+    private String tenantId;
+    private Long balanceId;
+    private String overseasWarehouseId;
+    private String destinationWarehouseCode;
+    private String skuCode;
+    private Long palletId;
+    private String palletNo;
+    private String batchNo;
+    private Long warehouseLocationId;
+    private String warehouseLocationCode;
+    private Long availablePackages;
+    private Long holdPackages;
+    private Long allocatedPackages;
+    private Long pickedPackages;
+    private Long receivingPackages;
+    private Long productQuantity;
+    private String status;
+    private Long version;
+    private LocalDateTime createdAt;
+    private LocalDateTime updatedAt;
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/mapper/InventoryBalanceMapper.java

@@ -0,0 +1,52 @@
+package com.baiyue.lastleg.inventory.mapper;
+
+import com.baiyue.lastleg.inventory.entity.InventoryBalance;
+import com.baiyue.lastleg.inventory.model.InventorySummary;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+public interface InventoryBalanceMapper extends BaseMapper<InventoryBalance> {
+    @Select("SELECT * FROM ll_inventory_balance WHERE tenant_id=#{tenantId} " +
+        "AND overseas_warehouse_id=#{overseasWarehouseId} " +
+        "AND destination_warehouse_code=#{destinationWarehouseCode} AND sku_code=#{skuCode} LIMIT 1")
+    InventoryBalance findDimension(@Param("tenantId") String tenantId,
+                                   @Param("overseasWarehouseId") String overseasWarehouseId,
+                                   @Param("destinationWarehouseCode") String destinationWarehouseCode,
+                                   @Param("skuCode") String skuCode);
+
+    @Select("SELECT * FROM ll_inventory_balance WHERE tenant_id=#{tenantId} " +
+        "AND overseas_warehouse_id=#{overseasWarehouseId} " +
+        "AND destination_warehouse_code=#{destinationWarehouseCode} AND sku_code=#{skuCode} LIMIT 1 FOR UPDATE")
+    InventoryBalance lockDimension(@Param("tenantId") String tenantId,
+                                   @Param("overseasWarehouseId") String overseasWarehouseId,
+                                   @Param("destinationWarehouseCode") String destinationWarehouseCode,
+                                   @Param("skuCode") String skuCode);
+
+    @Select("<script>SELECT * FROM ll_inventory_balance WHERE tenant_id=#{tenantId}" +
+        "<if test='overseasWarehouseId != null and overseasWarehouseId != \"\"'> AND overseas_warehouse_id=#{overseasWarehouseId}</if>" +
+        "<if test='destinationWarehouseCode != null and destinationWarehouseCode != \"\"'> AND destination_warehouse_code=#{destinationWarehouseCode}</if>" +
+        "<if test='skuCode != null and skuCode != \"\"'> AND sku_code=#{skuCode}</if>" +
+        " ORDER BY updated_at DESC,id DESC LIMIT #{limit} OFFSET #{offset}</script>")
+    List<InventoryBalance> listTenant(@Param("tenantId") String tenantId,
+                                      @Param("overseasWarehouseId") String overseasWarehouseId,
+                                      @Param("destinationWarehouseCode") String destinationWarehouseCode,
+                                      @Param("skuCode") String skuCode,
+                                      @Param("offset") long offset,
+                                      @Param("limit") int limit);
+
+    @Select("<script>SELECT COUNT(*) balance_count," +
+        "COALESCE(SUM(available_packages),0) available_packages,COALESCE(SUM(hold_packages),0) hold_packages," +
+        "COALESCE(SUM(allocated_packages),0) allocated_packages,COALESCE(SUM(picked_packages),0) picked_packages," +
+        "COALESCE(SUM(in_transit_packages),0) in_transit_packages,COALESCE(SUM(receiving_packages),0) receiving_packages," +
+        "COALESCE(SUM(procurement_packages),0) procurement_packages," +
+        "COALESCE(SUM(available_quantity),0) available_quantity,COALESCE(SUM(hold_quantity),0) hold_quantity," +
+        "COALESCE(SUM(allocated_quantity),0) allocated_quantity,COALESCE(SUM(picked_quantity),0) picked_quantity," +
+        "COALESCE(SUM(in_transit_quantity),0) in_transit_quantity,COALESCE(SUM(receiving_quantity),0) receiving_quantity," +
+        "COALESCE(SUM(procurement_quantity),0) procurement_quantity FROM ll_inventory_balance WHERE tenant_id=#{tenantId}" +
+        "<if test='overseasWarehouseId != null and overseasWarehouseId != \"\"'> AND overseas_warehouse_id=#{overseasWarehouseId}</if></script>")
+    InventorySummary summarize(@Param("tenantId") String tenantId,
+                               @Param("overseasWarehouseId") String overseasWarehouseId);
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/mapper/InventoryLedgerMapper.java

@@ -0,0 +1,33 @@
+package com.baiyue.lastleg.inventory.mapper;
+
+import com.baiyue.lastleg.inventory.entity.InventoryLedger;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+public interface InventoryLedgerMapper extends BaseMapper<InventoryLedger> {
+    @Select("SELECT * FROM ll_inventory_ledger WHERE tenant_id=#{tenantId} AND idempotency_key=#{idempotencyKey} LIMIT 1")
+    InventoryLedger findIdempotency(@Param("tenantId") String tenantId,
+                                    @Param("idempotencyKey") String idempotencyKey);
+
+    @Select("<script>SELECT * FROM ll_inventory_ledger WHERE tenant_id=#{tenantId}" +
+        "<if test='overseasWarehouseId != null and overseasWarehouseId != \"\"'> AND overseas_warehouse_id=#{overseasWarehouseId}</if>" +
+        "<if test='skuCode != null and skuCode != \"\"'> AND sku_code=#{skuCode}</if>" +
+        "<if test='businessType != null and businessType != \"\"'> AND business_type=#{businessType}</if>" +
+        "<if test='businessOrderNo != null and businessOrderNo != \"\"'> AND business_order_no=#{businessOrderNo}</if>" +
+        "<if test='startedAt != null'> AND occurred_at &gt;=#{startedAt}</if>" +
+        "<if test='endedAt != null'> AND occurred_at &lt;#{endedAt}</if>" +
+        " ORDER BY occurred_at DESC,id DESC LIMIT #{limit} OFFSET #{offset}</script>")
+    List<InventoryLedger> listTenant(@Param("tenantId") String tenantId,
+                                     @Param("overseasWarehouseId") String overseasWarehouseId,
+                                     @Param("skuCode") String skuCode,
+                                     @Param("businessType") String businessType,
+                                     @Param("businessOrderNo") String businessOrderNo,
+                                     @Param("startedAt") LocalDateTime startedAt,
+                                     @Param("endedAt") LocalDateTime endedAt,
+                                     @Param("offset") long offset,
+                                     @Param("limit") int limit);
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/mapper/InventoryOperationMapper.java

@@ -0,0 +1,16 @@
+package com.baiyue.lastleg.inventory.mapper;
+
+import com.baiyue.lastleg.inventory.entity.InventoryOperation;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+public interface InventoryOperationMapper extends BaseMapper<InventoryOperation> {
+    @Select("SELECT * FROM ll_inventory_operation WHERE tenant_id=#{tenantId} AND idempotency_key=#{idempotencyKey} LIMIT 1")
+    InventoryOperation findIdempotency(@Param("tenantId") String tenantId,
+                                       @Param("idempotencyKey") String idempotencyKey);
+
+    @Select("SELECT * FROM ll_inventory_operation WHERE tenant_id=#{tenantId} AND idempotency_key=#{idempotencyKey} LIMIT 1 FOR UPDATE")
+    InventoryOperation lockIdempotency(@Param("tenantId") String tenantId,
+                                       @Param("idempotencyKey") String idempotencyKey);
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/mapper/InventoryPositionMapper.java

@@ -0,0 +1,27 @@
+package com.baiyue.lastleg.inventory.mapper;
+
+import com.baiyue.lastleg.inventory.entity.InventoryPosition;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+public interface InventoryPositionMapper extends BaseMapper<InventoryPosition> {
+    @Select("SELECT p.* FROM ll_inventory_position p JOIN ll_inventory_balance b ON b.id=p.balance_id " +
+        "WHERE b.tenant_id=#{tenantId} AND p.balance_id=#{balanceId} ORDER BY p.pallet_no,p.batch_no")
+    List<InventoryPosition> listBalance(@Param("tenantId") String tenantId,
+                                        @Param("balanceId") Long balanceId);
+
+    @Select("SELECT * FROM ll_inventory_position WHERE tenant_id=#{tenantId} AND pallet_id=#{palletId} " +
+        "ORDER BY sku_code,batch_no")
+    List<InventoryPosition> listPallet(@Param("tenantId") String tenantId,
+                                      @Param("palletId") Long palletId);
+
+    @Select("SELECT * FROM ll_inventory_position WHERE tenant_id=#{tenantId} AND balance_id=#{balanceId} " +
+        "AND pallet_id=#{palletId} AND batch_no=#{batchNo} LIMIT 1 FOR UPDATE")
+    InventoryPosition lockPosition(@Param("tenantId") String tenantId,
+                                    @Param("balanceId") Long balanceId,
+                                    @Param("palletId") Long palletId,
+                                    @Param("batchNo") String batchNo);
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/model/InventorySummary.java

@@ -0,0 +1,22 @@
+package com.baiyue.lastleg.inventory.model;
+
+import lombok.Data;
+
+@Data
+public class InventorySummary {
+    private Long balanceCount;
+    private Long availablePackages;
+    private Long holdPackages;
+    private Long allocatedPackages;
+    private Long pickedPackages;
+    private Long inTransitPackages;
+    private Long receivingPackages;
+    private Long procurementPackages;
+    private Long availableQuantity;
+    private Long holdQuantity;
+    private Long allocatedQuantity;
+    private Long pickedQuantity;
+    private Long inTransitQuantity;
+    private Long receivingQuantity;
+    private Long procurementQuantity;
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/query/InventoryQueryMapperConfiguration.java

@@ -0,0 +1,9 @@
+package com.baiyue.lastleg.inventory.query;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@MapperScan("com.baiyue.lastleg.inventory.query.mapper")
+public class InventoryQueryMapperConfiguration {
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/query/controller/InventoryQueryController.java

@@ -0,0 +1,112 @@
+package com.baiyue.lastleg.inventory.query.controller;
+
+import com.baiyue.common.core.api.ApiResponse;
+import com.baiyue.common.core.api.PageResult;
+import com.baiyue.common.security.AuthenticatedUser;
+import com.baiyue.lastleg.inventory.query.dto.InventoryBalanceView;
+import com.baiyue.lastleg.inventory.query.dto.InventoryDashboardResponse;
+import com.baiyue.lastleg.inventory.query.dto.InventoryLedgerView;
+import com.baiyue.lastleg.inventory.query.dto.InventoryPositionView;
+import com.baiyue.lastleg.inventory.query.dto.InventoryQueryRequests;
+import com.baiyue.lastleg.inventory.query.service.InventoryQueryService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.annotation.Resource;
+import jakarta.validation.Valid;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.nio.charset.StandardCharsets;
+import java.util.List;
+
+@RestController
+@Tag(name = "Inventory queries")
+public class InventoryQueryController {
+    private static final String BASE_PATH = "/api/platform/v1/last-leg/inventory";
+
+    @Resource private InventoryQueryService service;
+
+    @GetMapping(BASE_PATH + "/summary")
+    @Operation(summary = "Get SKU/package inventory totals")
+    public ApiResponse<InventoryDashboardResponse> summary(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String tenantId,
+        @Valid InventoryQueryRequests.BalanceQuery query) {
+        return ApiResponse.success(service.dashboard(scope(user, tenantId), query));
+    }
+
+    @GetMapping(BASE_PATH + "/balances")
+    @Operation(summary = "Page inventory by customer, destination warehouse and SKU")
+    public ApiResponse<PageResult<InventoryBalanceView>> balances(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String tenantId,
+        @Valid InventoryQueryRequests.BalanceQuery query) {
+        return ApiResponse.success(service.balances(scope(user, tenantId), query));
+    }
+
+    @GetMapping(BASE_PATH + "/balances/{balanceId}/positions")
+    @Operation(summary = "List pallet and batch positions for one SKU balance")
+    public ApiResponse<List<InventoryPositionView>> positions(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String tenantId,
+        @PathVariable long balanceId,
+        @Valid InventoryQueryRequests.PositionQuery query) {
+        return ApiResponse.success(service.positions(scope(user, tenantId), balanceId, query));
+    }
+
+    @GetMapping(BASE_PATH + "/ledger")
+    @Operation(summary = "Page append-only inventory movements")
+    public ApiResponse<PageResult<InventoryLedgerView>> ledgers(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String tenantId,
+        @Valid InventoryQueryRequests.LedgerQuery query) {
+        return ApiResponse.success(service.ledgers(scope(user, tenantId), query));
+    }
+
+    @GetMapping(value = BASE_PATH + "/balances/export", produces = "text/csv")
+    @Operation(summary = "Export filtered SKU inventory as UTF-8 CSV")
+    public ResponseEntity<byte[]> exportBalances(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String tenantId,
+        @Valid InventoryQueryRequests.BalanceQuery query) {
+        return csv(service.exportBalances(scope(user, tenantId), query), "inventory-balances.csv");
+    }
+
+    @GetMapping(value = BASE_PATH + "/ledger/export", produces = "text/csv")
+    @Operation(summary = "Export filtered inventory movements as UTF-8 CSV")
+    public ResponseEntity<byte[]> exportLedgers(
+        @AuthenticationPrincipal AuthenticatedUser user,
+        @RequestParam(required = false) String tenantId,
+        @Valid InventoryQueryRequests.LedgerQuery query) {
+        return csv(service.exportLedgers(scope(user, tenantId), query), "inventory-ledger.csv");
+    }
+
+    private static ResponseEntity<byte[]> csv(byte[] body, String filename) {
+        return ResponseEntity.ok()
+            .contentType(new MediaType("text", "csv", StandardCharsets.UTF_8))
+            .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=" + filename)
+            .body(body);
+    }
+
+    private String scope(AuthenticatedUser user, String requestedTenant) {
+        if (user == null || user.tenantId() == null) {
+            throw new ResponseStatusException(HttpStatus.UNAUTHORIZED);
+        }
+        if ("PLATFORM".equals(user.appCode()) && user.tenantId() == 0L) {
+            if (requestedTenant == null || requestedTenant.isBlank() || "0".equals(requestedTenant)) {
+                throw new ResponseStatusException(HttpStatus.BAD_REQUEST,
+                    "Platform queries must specify a customer tenant");
+            }
+            return requestedTenant;
+        }
+        return String.valueOf(user.tenantId());
+    }
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/query/dto/InventoryBalanceView.java

@@ -0,0 +1,35 @@
+package com.baiyue.lastleg.inventory.query.dto;
+
+import java.time.LocalDateTime;
+
+public record InventoryBalanceView(
+    Long id,
+    String customerId,
+    String customerName,
+    String overseasWarehouseId,
+    String overseasWarehouseCode,
+    String overseasWarehouseName,
+    String destinationWarehouseId,
+    String destinationWarehouseCode,
+    String destinationWarehouseName,
+    String skuCode,
+    String skuName,
+    long totalPackages,
+    long availablePackages,
+    long holdPackages,
+    long allocatedPackages,
+    long pickedPackages,
+    long inTransitPackages,
+    long receivingPackages,
+    long procurementPackages,
+    long totalQuantity,
+    long availableQuantity,
+    long holdQuantity,
+    long allocatedQuantity,
+    long pickedQuantity,
+    long inTransitQuantity,
+    long receivingQuantity,
+    long procurementQuantity,
+    LocalDateTime updatedAt
+) {
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/query/dto/InventoryDashboardResponse.java

@@ -0,0 +1,23 @@
+package com.baiyue.lastleg.inventory.query.dto;
+
+public record InventoryDashboardResponse(
+    long skuDimensionCount,
+    long palletCount,
+    long totalPackages,
+    long availablePackages,
+    long holdPackages,
+    long allocatedPackages,
+    long pickedPackages,
+    long inTransitPackages,
+    long receivingPackages,
+    long procurementPackages,
+    long totalQuantity,
+    long availableQuantity,
+    long holdQuantity,
+    long allocatedQuantity,
+    long pickedQuantity,
+    long inTransitQuantity,
+    long receivingQuantity,
+    long procurementQuantity
+) {
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/query/dto/InventoryLedgerView.java

@@ -0,0 +1,30 @@
+package com.baiyue.lastleg.inventory.query.dto;
+
+import java.time.LocalDateTime;
+
+public record InventoryLedgerView(
+    Long id,
+    String customerId,
+    String overseasWarehouseId,
+    String destinationWarehouseCode,
+    String skuCode,
+    String palletNo,
+    String batchNo,
+    String warehouseLocationCode,
+    String businessType,
+    String businessOrderNo,
+    String inboundOrderNo,
+    String outboundOrderNo,
+    String statusFrom,
+    String statusTo,
+    long beforePackages,
+    long deltaPackages,
+    long afterPackages,
+    long beforeQuantity,
+    long deltaQuantity,
+    long afterQuantity,
+    String operatorId,
+    String remark,
+    LocalDateTime occurredAt
+) {
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/query/dto/InventoryPositionView.java

@@ -0,0 +1,27 @@
+package com.baiyue.lastleg.inventory.query.dto;
+
+import java.time.LocalDateTime;
+
+public record InventoryPositionView(
+    Long id,
+    Long balanceId,
+    String customerId,
+    String overseasWarehouseId,
+    String destinationWarehouseCode,
+    String skuCode,
+    Long palletId,
+    String palletNo,
+    String batchNo,
+    Long warehouseLocationId,
+    String warehouseLocationCode,
+    long totalPackages,
+    long availablePackages,
+    long holdPackages,
+    long allocatedPackages,
+    long pickedPackages,
+    long receivingPackages,
+    long productQuantity,
+    String status,
+    LocalDateTime updatedAt
+) {
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/query/dto/InventoryQueryRequests.java

@@ -0,0 +1,52 @@
+package com.baiyue.lastleg.inventory.query.dto;
+
+import jakarta.validation.constraints.Max;
+import jakarta.validation.constraints.Min;
+
+import java.time.LocalDateTime;
+
+public final class InventoryQueryRequests {
+    private InventoryQueryRequests() {
+    }
+
+    public record BalanceQuery(
+        @Min(1) long page,
+        @Min(1) @Max(200) long size,
+        String customerName,
+        String overseasWarehouseId,
+        String overseasWarehouseCode,
+        String destinationWarehouseCode,
+        String skuCode,
+        String skuName,
+        String inventoryStatus
+    ) {
+        public BalanceQuery {
+            if (page == 0) page = 1;
+            if (size == 0) size = 20;
+        }
+    }
+
+    public record PositionQuery(String palletNo, String batchNo, String inventoryStatus) {
+    }
+
+    public record LedgerQuery(
+        @Min(1) long page,
+        @Min(1) @Max(200) long size,
+        String overseasWarehouseId,
+        String destinationWarehouseCode,
+        String skuCode,
+        String businessType,
+        String businessOrderNo,
+        String inboundOrderNo,
+        String outboundOrderNo,
+        String palletNo,
+        String batchNo,
+        LocalDateTime occurredFrom,
+        LocalDateTime occurredTo
+    ) {
+        public LedgerQuery {
+            if (page == 0) page = 1;
+            if (size == 0) size = 20;
+        }
+    }
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/query/mapper/InventoryQueryMapper.java

@@ -0,0 +1,124 @@
+package com.baiyue.lastleg.inventory.query.mapper;
+
+import com.baiyue.lastleg.inventory.entity.InventoryBalance;
+import com.baiyue.lastleg.inventory.entity.InventoryLedger;
+import com.baiyue.lastleg.inventory.entity.InventoryPosition;
+import com.baiyue.lastleg.inventory.query.dto.InventoryQueryRequests;
+import com.baiyue.lastleg.inventory.query.model.InventoryAggregateProjection;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+public interface InventoryQueryMapper {
+    String BALANCE_FILTER = " WHERE tenant_id=#{tenantId}" +
+        "<if test='q.customerName != null and q.customerName != \"\"'> AND customer_name LIKE CONCAT('%',#{q.customerName},'%')</if>" +
+        "<if test='q.overseasWarehouseId != null and q.overseasWarehouseId != \"\"'> AND overseas_warehouse_id=#{q.overseasWarehouseId}</if>" +
+        "<if test='q.overseasWarehouseCode != null and q.overseasWarehouseCode != \"\"'> AND overseas_warehouse_code=#{q.overseasWarehouseCode}</if>" +
+        "<if test='q.destinationWarehouseCode != null and q.destinationWarehouseCode != \"\"'> AND destination_warehouse_code=#{q.destinationWarehouseCode}</if>" +
+        "<if test='q.skuCode != null and q.skuCode != \"\"'> AND sku_code LIKE CONCAT('%',#{q.skuCode},'%')</if>" +
+        "<if test='q.skuName != null and q.skuName != \"\"'> AND sku_name_zh LIKE CONCAT('%',#{q.skuName},'%')</if>" +
+        "<choose>" +
+        "<when test='q.inventoryStatus == \"AVAILABLE\"'> AND available_packages &gt; 0</when>" +
+        "<when test='q.inventoryStatus == \"HOLD\"'> AND hold_packages &gt; 0</when>" +
+        "<when test='q.inventoryStatus == \"ALLOCATED\"'> AND allocated_packages &gt; 0</when>" +
+        "<when test='q.inventoryStatus == \"PICKED\"'> AND picked_packages &gt; 0</when>" +
+        "<when test='q.inventoryStatus == \"IN_TRANSIT\"'> AND in_transit_packages &gt; 0</when>" +
+        "<when test='q.inventoryStatus == \"RECEIVING\"'> AND receiving_packages &gt; 0</when>" +
+        "<when test='q.inventoryStatus == \"PROCUREMENT\"'> AND procurement_packages &gt; 0</when>" +
+        "</choose>";
+
+    String JOINED_BALANCE_FILTER = " WHERE b.tenant_id=#{tenantId}" +
+        "<if test='q.customerName != null and q.customerName != \"\"'> AND b.customer_name LIKE CONCAT('%',#{q.customerName},'%')</if>" +
+        "<if test='q.overseasWarehouseId != null and q.overseasWarehouseId != \"\"'> AND b.overseas_warehouse_id=#{q.overseasWarehouseId}</if>" +
+        "<if test='q.overseasWarehouseCode != null and q.overseasWarehouseCode != \"\"'> AND b.overseas_warehouse_code=#{q.overseasWarehouseCode}</if>" +
+        "<if test='q.destinationWarehouseCode != null and q.destinationWarehouseCode != \"\"'> AND b.destination_warehouse_code=#{q.destinationWarehouseCode}</if>" +
+        "<if test='q.skuCode != null and q.skuCode != \"\"'> AND b.sku_code LIKE CONCAT('%',#{q.skuCode},'%')</if>" +
+        "<if test='q.skuName != null and q.skuName != \"\"'> AND b.sku_name_zh LIKE CONCAT('%',#{q.skuName},'%')</if>" +
+        "<choose>" +
+        "<when test='q.inventoryStatus == \"AVAILABLE\"'> AND b.available_packages &gt; 0</when>" +
+        "<when test='q.inventoryStatus == \"HOLD\"'> AND b.hold_packages &gt; 0</when>" +
+        "<when test='q.inventoryStatus == \"ALLOCATED\"'> AND b.allocated_packages &gt; 0</when>" +
+        "<when test='q.inventoryStatus == \"PICKED\"'> AND b.picked_packages &gt; 0</when>" +
+        "<when test='q.inventoryStatus == \"IN_TRANSIT\"'> AND b.in_transit_packages &gt; 0</when>" +
+        "<when test='q.inventoryStatus == \"RECEIVING\"'> AND b.receiving_packages &gt; 0</when>" +
+        "<when test='q.inventoryStatus == \"PROCUREMENT\"'> AND b.procurement_packages &gt; 0</when>" +
+        "</choose>";
+
+    @Select("<script>SELECT * FROM ll_inventory_balance" + BALANCE_FILTER +
+        " ORDER BY updated_at DESC,id DESC LIMIT #{limit} OFFSET #{offset}</script>")
+    List<InventoryBalance> balances(@Param("tenantId") String tenantId,
+                                    @Param("q") InventoryQueryRequests.BalanceQuery query,
+                                    @Param("offset") long offset,
+                                    @Param("limit") long limit);
+
+    @Select("<script>SELECT COUNT(*) FROM ll_inventory_balance" + BALANCE_FILTER + "</script>")
+    long countBalances(@Param("tenantId") String tenantId,
+                       @Param("q") InventoryQueryRequests.BalanceQuery query);
+
+    @Select("<script>SELECT COUNT(*) dimension_count," +
+        "COALESCE(SUM(available_packages),0) available_packages," +
+        "COALESCE(SUM(hold_packages),0) hold_packages," +
+        "COALESCE(SUM(allocated_packages),0) allocated_packages," +
+        "COALESCE(SUM(picked_packages),0) picked_packages," +
+        "COALESCE(SUM(in_transit_packages),0) in_transit_packages," +
+        "COALESCE(SUM(receiving_packages),0) receiving_packages," +
+        "COALESCE(SUM(procurement_packages),0) procurement_packages," +
+        "COALESCE(SUM(available_quantity),0) available_quantity," +
+        "COALESCE(SUM(hold_quantity),0) hold_quantity," +
+        "COALESCE(SUM(allocated_quantity),0) allocated_quantity," +
+        "COALESCE(SUM(picked_quantity),0) picked_quantity," +
+        "COALESCE(SUM(in_transit_quantity),0) in_transit_quantity," +
+        "COALESCE(SUM(receiving_quantity),0) receiving_quantity," +
+        "COALESCE(SUM(procurement_quantity),0) procurement_quantity " +
+        "FROM ll_inventory_balance" + BALANCE_FILTER + "</script>")
+    InventoryAggregateProjection aggregate(@Param("tenantId") String tenantId,
+                                           @Param("q") InventoryQueryRequests.BalanceQuery query);
+
+    @Select("<script>SELECT COUNT(DISTINCT p.pallet_id) FROM ll_inventory_position p " +
+        "JOIN ll_inventory_balance b ON b.id=p.balance_id" +
+        JOINED_BALANCE_FILTER + "</script>")
+    long countPallets(@Param("tenantId") String tenantId,
+                      @Param("q") InventoryQueryRequests.BalanceQuery query);
+
+    @Select("<script>SELECT * FROM ll_inventory_position WHERE tenant_id=#{tenantId} AND balance_id=#{balanceId}" +
+        "<if test='q.palletNo != null and q.palletNo != \"\"'> AND pallet_no LIKE CONCAT('%',#{q.palletNo},'%')</if>" +
+        "<if test='q.batchNo != null and q.batchNo != \"\"'> AND batch_no LIKE CONCAT('%',#{q.batchNo},'%')</if>" +
+        "<choose>" +
+        "<when test='q.inventoryStatus == \"AVAILABLE\"'> AND available_packages &gt; 0</when>" +
+        "<when test='q.inventoryStatus == \"HOLD\"'> AND hold_packages &gt; 0</when>" +
+        "<when test='q.inventoryStatus == \"ALLOCATED\"'> AND allocated_packages &gt; 0</when>" +
+        "<when test='q.inventoryStatus == \"PICKED\"'> AND picked_packages &gt; 0</when>" +
+        "<when test='q.inventoryStatus == \"RECEIVING\"'> AND receiving_packages &gt; 0</when>" +
+        "</choose> ORDER BY pallet_no,batch_no,id</script>")
+    List<InventoryPosition> positions(@Param("tenantId") String tenantId,
+                                      @Param("balanceId") long balanceId,
+                                      @Param("q") InventoryQueryRequests.PositionQuery query);
+
+    @Select("SELECT COUNT(*) FROM ll_inventory_balance WHERE tenant_id=#{tenantId} AND id=#{balanceId}")
+    long countOwnedBalance(@Param("tenantId") String tenantId, @Param("balanceId") long balanceId);
+
+    String LEDGER_FILTER = " WHERE tenant_id=#{tenantId}" +
+        "<if test='q.overseasWarehouseId != null and q.overseasWarehouseId != \"\"'> AND overseas_warehouse_id=#{q.overseasWarehouseId}</if>" +
+        "<if test='q.destinationWarehouseCode != null and q.destinationWarehouseCode != \"\"'> AND destination_warehouse_code=#{q.destinationWarehouseCode}</if>" +
+        "<if test='q.skuCode != null and q.skuCode != \"\"'> AND sku_code LIKE CONCAT('%',#{q.skuCode},'%')</if>" +
+        "<if test='q.businessType != null and q.businessType != \"\"'> AND business_type=#{q.businessType}</if>" +
+        "<if test='q.businessOrderNo != null and q.businessOrderNo != \"\"'> AND business_order_no LIKE CONCAT('%',#{q.businessOrderNo},'%')</if>" +
+        "<if test='q.inboundOrderNo != null and q.inboundOrderNo != \"\"'> AND inbound_order_no LIKE CONCAT('%',#{q.inboundOrderNo},'%')</if>" +
+        "<if test='q.outboundOrderNo != null and q.outboundOrderNo != \"\"'> AND outbound_order_no LIKE CONCAT('%',#{q.outboundOrderNo},'%')</if>" +
+        "<if test='q.palletNo != null and q.palletNo != \"\"'> AND pallet_no LIKE CONCAT('%',#{q.palletNo},'%')</if>" +
+        "<if test='q.batchNo != null and q.batchNo != \"\"'> AND batch_no LIKE CONCAT('%',#{q.batchNo},'%')</if>" +
+        "<if test='q.occurredFrom != null'> AND occurred_at &gt;=#{q.occurredFrom}</if>" +
+        "<if test='q.occurredTo != null'> AND occurred_at &lt;=#{q.occurredTo}</if>";
+
+    @Select("<script>SELECT * FROM ll_inventory_ledger" + LEDGER_FILTER +
+        " ORDER BY occurred_at DESC,id DESC LIMIT #{limit} OFFSET #{offset}</script>")
+    List<InventoryLedger> ledgers(@Param("tenantId") String tenantId,
+                                  @Param("q") InventoryQueryRequests.LedgerQuery query,
+                                  @Param("offset") long offset,
+                                  @Param("limit") long limit);
+
+    @Select("<script>SELECT COUNT(*) FROM ll_inventory_ledger" + LEDGER_FILTER + "</script>")
+    long countLedgers(@Param("tenantId") String tenantId,
+                      @Param("q") InventoryQueryRequests.LedgerQuery query);
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/query/model/InventoryAggregateProjection.java

@@ -0,0 +1,22 @@
+package com.baiyue.lastleg.inventory.query.model;
+
+import lombok.Data;
+
+@Data
+public class InventoryAggregateProjection {
+    private Long dimensionCount;
+    private Long availablePackages;
+    private Long holdPackages;
+    private Long allocatedPackages;
+    private Long pickedPackages;
+    private Long inTransitPackages;
+    private Long receivingPackages;
+    private Long procurementPackages;
+    private Long availableQuantity;
+    private Long holdQuantity;
+    private Long allocatedQuantity;
+    private Long pickedQuantity;
+    private Long inTransitQuantity;
+    private Long receivingQuantity;
+    private Long procurementQuantity;
+}

lastleg/src/main/java/com/baiyue/lastleg/inventory/query/service/InventoryQueryService.java

@@ -0,0 +1,202 @@
+package com.baiyue.lastleg.inventory.query.service;
+
+import com.baiyue.common.core.api.PageResult;
+import com.baiyue.lastleg.inventory.entity.InventoryBalance;
+import com.baiyue.lastleg.inventory.entity.InventoryLedger;
+import com.baiyue.lastleg.inventory.entity.InventoryPosition;
+import com.baiyue.lastleg.inventory.query.dto.InventoryBalanceView;
+import com.baiyue.lastleg.inventory.query.dto.InventoryDashboardResponse;
+import com.baiyue.lastleg.inventory.query.dto.InventoryLedgerView;
+import com.baiyue.lastleg.inventory.query.dto.InventoryPositionView;
+import com.baiyue.lastleg.inventory.query.dto.InventoryQueryRequests;
+import com.baiyue.lastleg.inventory.query.mapper.InventoryQueryMapper;
+import com.baiyue.lastleg.inventory.query.model.InventoryAggregateProjection;
+import jakarta.annotation.Resource;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+
+@Service
+public class InventoryQueryService {
+    private static final int EXPORT_LIMIT = 10_000;
+    private static final Set<String> BALANCE_STATUSES = Set.of(
+        "AVAILABLE", "HOLD", "ALLOCATED", "PICKED", "IN_TRANSIT", "RECEIVING", "PROCUREMENT");
+    private static final Set<String> POSITION_STATUSES = Set.of(
+        "AVAILABLE", "HOLD", "ALLOCATED", "PICKED", "RECEIVING");
+
+    @Resource private InventoryQueryMapper mapper;
+
+    public InventoryDashboardResponse dashboard(String tenantId, InventoryQueryRequests.BalanceQuery query) {
+        validateStatus(query.inventoryStatus(), BALANCE_STATUSES);
+        InventoryAggregateProjection value = mapper.aggregate(tenantId, query);
+        long availablePackages = number(value.getAvailablePackages());
+        long holdPackages = number(value.getHoldPackages());
+        long allocatedPackages = number(value.getAllocatedPackages());
+        long pickedPackages = number(value.getPickedPackages());
+        long inTransitPackages = number(value.getInTransitPackages());
+        long receivingPackages = number(value.getReceivingPackages());
+        long procurementPackages = number(value.getProcurementPackages());
+        long availableQuantity = number(value.getAvailableQuantity());
+        long holdQuantity = number(value.getHoldQuantity());
+        long allocatedQuantity = number(value.getAllocatedQuantity());
+        long pickedQuantity = number(value.getPickedQuantity());
+        long inTransitQuantity = number(value.getInTransitQuantity());
+        long receivingQuantity = number(value.getReceivingQuantity());
+        long procurementQuantity = number(value.getProcurementQuantity());
+        return new InventoryDashboardResponse(number(value.getDimensionCount()), mapper.countPallets(tenantId, query),
+            availablePackages + holdPackages + allocatedPackages + pickedPackages + inTransitPackages
+                + receivingPackages + procurementPackages,
+            availablePackages, holdPackages, allocatedPackages, pickedPackages, inTransitPackages,
+            receivingPackages, procurementPackages,
+            availableQuantity + holdQuantity + allocatedQuantity + pickedQuantity + inTransitQuantity
+                + receivingQuantity + procurementQuantity,
+            availableQuantity, holdQuantity, allocatedQuantity, pickedQuantity, inTransitQuantity,
+            receivingQuantity, procurementQuantity);
+    }
+
+    public PageResult<InventoryBalanceView> balances(String tenantId, InventoryQueryRequests.BalanceQuery query) {
+        validateStatus(query.inventoryStatus(), BALANCE_STATUSES);
+        long total = mapper.countBalances(tenantId, query);
+        List<InventoryBalanceView> records = total == 0 ? List.of() : mapper.balances(
+            tenantId, query, offset(query.page(), query.size()), query.size()).stream().map(this::balanceView).toList();
+        return page(records, query.page(), query.size(), total);
+    }
+
+    public List<InventoryPositionView> positions(String tenantId, long balanceId,
+                                                 InventoryQueryRequests.PositionQuery query) {
+        validateStatus(query.inventoryStatus(), POSITION_STATUSES);
+        if (mapper.countOwnedBalance(tenantId, balanceId) == 0) {
+            throw new ResponseStatusException(HttpStatus.NOT_FOUND, "Inventory balance not found");
+        }
+        return mapper.positions(tenantId, balanceId, query).stream().map(this::positionView).toList();
+    }
+
+    public PageResult<InventoryLedgerView> ledgers(String tenantId, InventoryQueryRequests.LedgerQuery query) {
+        validateDateRange(query);
+        long total = mapper.countLedgers(tenantId, query);
+        List<InventoryLedgerView> records = total == 0 ? List.of() : mapper.ledgers(
+            tenantId, query, offset(query.page(), query.size()), query.size()).stream().map(this::ledgerView).toList();
+        return page(records, query.page(), query.size(), total);
+    }
+
+    public byte[] exportBalances(String tenantId, InventoryQueryRequests.BalanceQuery query) {
+        validateStatus(query.inventoryStatus(), BALANCE_STATUSES);
+        List<String> rows = new ArrayList<>();
+        rows.add("customerId,customerName,overseasWarehouseCode,overseasWarehouseName,destinationWarehouseCode," +
+            "destinationWarehouseName,skuCode,skuName,totalPackages,availablePackages,holdPackages," +
+            "allocatedPackages,pickedPackages,inTransitPackages,receivingPackages,procurementPackages,totalQuantity");
+        mapper.balances(tenantId, query, 0, EXPORT_LIMIT).stream().map(this::balanceView).forEach(v -> rows.add(
+            String.join(",", csv(v.customerId()), csv(v.customerName()), csv(v.overseasWarehouseCode()), csv(v.overseasWarehouseName()),
+                csv(v.destinationWarehouseCode()), csv(v.destinationWarehouseName()), csv(v.skuCode()), csv(v.skuName()),
+                csv(v.totalPackages()), csv(v.availablePackages()), csv(v.holdPackages()), csv(v.allocatedPackages()),
+                csv(v.pickedPackages()), csv(v.inTransitPackages()), csv(v.receivingPackages()),
+                csv(v.procurementPackages()), csv(v.totalQuantity()))));
+        return ("\uFEFF" + String.join("\r\n", rows)).getBytes(StandardCharsets.UTF_8);
+    }
+
+    public byte[] exportLedgers(String tenantId, InventoryQueryRequests.LedgerQuery query) {
+        validateDateRange(query);
+        List<String> rows = new ArrayList<>();
+        rows.add("occurredAt,customerId,overseasWarehouseId,destinationWarehouseCode,skuCode,businessType," +
+            "businessOrderNo,inboundOrderNo,outboundOrderNo,palletNo,batchNo,statusFrom,statusTo," +
+            "beforePackages,deltaPackages,afterPackages,beforeQuantity,deltaQuantity,afterQuantity,operatorId,remark");
+        mapper.ledgers(tenantId, query, 0, EXPORT_LIMIT).stream().map(this::ledgerView).forEach(v -> rows.add(
+            String.join(",", csv(v.occurredAt()), csv(v.customerId()), csv(v.overseasWarehouseId()),
+                csv(v.destinationWarehouseCode()), csv(v.skuCode()), csv(v.businessType()), csv(v.businessOrderNo()),
+                csv(v.inboundOrderNo()), csv(v.outboundOrderNo()), csv(v.palletNo()), csv(v.batchNo()),
+                csv(v.statusFrom()), csv(v.statusTo()), csv(v.beforePackages()), csv(v.deltaPackages()),
+                csv(v.afterPackages()), csv(v.beforeQuantity()), csv(v.deltaQuantity()), csv(v.afterQuantity()),
+                csv(v.operatorId()), csv(v.remark()))));
+        return ("\uFEFF" + String.join("\r\n", rows)).getBytes(StandardCharsets.UTF_8);
+    }
+
+    private InventoryBalanceView balanceView(InventoryBalance value) {
+        long availablePackages = number(value.getAvailablePackages());
+        long holdPackages = number(value.getHoldPackages());
+        long allocatedPackages = number(value.getAllocatedPackages());
+        long pickedPackages = number(value.getPickedPackages());
+        long inTransitPackages = number(value.getInTransitPackages());
+        long receivingPackages = number(value.getReceivingPackages());
+        long procurementPackages = number(value.getProcurementPackages());
+        long availableQuantity = number(value.getAvailableQuantity());
+        long holdQuantity = number(value.getHoldQuantity());
+        long allocatedQuantity = number(value.getAllocatedQuantity());
+        long pickedQuantity = number(value.getPickedQuantity());
+        long inTransitQuantity = number(value.getInTransitQuantity());
+        long receivingQuantity = number(value.getReceivingQuantity());
+        long procurementQuantity = number(value.getProcurementQuantity());
+        return new InventoryBalanceView(value.getId(), value.getTenantId(), value.getCustomerName(), value.getOverseasWarehouseId(),
+            value.getOverseasWarehouseCode(), value.getOverseasWarehouseName(), value.getDestinationWarehouseId(),
+            value.getDestinationWarehouseCode(), value.getDestinationWarehouseName(), value.getSkuCode(),
+            value.getSkuNameZh(), availablePackages + holdPackages + allocatedPackages + pickedPackages
+                + inTransitPackages + receivingPackages + procurementPackages,
+            availablePackages, holdPackages, allocatedPackages, pickedPackages, inTransitPackages,
+            receivingPackages, procurementPackages,
+            availableQuantity + holdQuantity + allocatedQuantity + pickedQuantity + inTransitQuantity
+                + receivingQuantity + procurementQuantity,
+            availableQuantity, holdQuantity, allocatedQuantity, pickedQuantity, inTransitQuantity,
+            receivingQuantity, procurementQuantity, value.getUpdatedAt());
+    }
+
+    private InventoryPositionView positionView(InventoryPosition value) {
+        long available = number(value.getAvailablePackages());
+        long hold = number(value.getHoldPackages());
+        long allocated = number(value.getAllocatedPackages());
+        long picked = number(value.getPickedPackages());
+        long receiving = number(value.getReceivingPackages());
+        return new InventoryPositionView(value.getId(), value.getBalanceId(), value.getTenantId(),
+            value.getOverseasWarehouseId(), value.getDestinationWarehouseCode(), value.getSkuCode(),
+            value.getPalletId(), value.getPalletNo(), value.getBatchNo(), value.getWarehouseLocationId(),
+            value.getWarehouseLocationCode(), available + hold + allocated + picked + receiving,
+            available, hold, allocated, picked, receiving, number(value.getProductQuantity()), value.getStatus(),
+            value.getUpdatedAt());
+    }
+
+    private InventoryLedgerView ledgerView(InventoryLedger value) {
+        return new InventoryLedgerView(value.getId(), value.getTenantId(), value.getOverseasWarehouseId(),
+            value.getDestinationWarehouseCode(), value.getSkuCode(), value.getPalletNo(), value.getBatchNo(),
+            value.getWarehouseLocationCode(), value.getBusinessType(), value.getBusinessOrderNo(),
+            value.getInboundOrderNo(), value.getOutboundOrderNo(), value.getStatusFrom(), value.getStatusTo(),
+            number(value.getBeforePackages()), number(value.getDeltaPackages()), number(value.getAfterPackages()),
+            number(value.getBeforeQuantity()), number(value.getDeltaQuantity()), number(value.getAfterQuantity()),
+            value.getOperatorId(), value.getRemark(), value.getOccurredAt());
+    }
+
+    private static void validateStatus(String status, Set<String> accepted) {
+        if (status != null && !status.isBlank() && !accepted.contains(status)) {
+            throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Unsupported inventory status: " + status);
+        }
+    }
+
+    private static void validateDateRange(InventoryQueryRequests.LedgerQuery query) {
+        if (query.occurredFrom() != null && query.occurredTo() != null
+            && query.occurredFrom().isAfter(query.occurredTo())) {
+            throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "occurredFrom must not be after occurredTo");
+        }
+    }
+
+    private static long offset(long page, long size) {
+        return Math.multiplyExact(page - 1, size);
+    }
+
+    private static long number(Long value) {
+        return value == null ? 0 : value;
+    }
+
+    private static <T> PageResult<T> page(List<T> records, long page, long size, long total) {
+        long pages = total == 0 ? 0 : (total + size - 1) / size;
+        return new PageResult<>(records, page, size, total, pages);
+    }
+
+    private static String csv(Object value) {
+        if (value == null) return "";
+        String text = String.valueOf(value);
+        if (!text.isEmpty() && "=+-@".indexOf(text.charAt(0)) >= 0) text = "'" + text;
+        return '"' + text.replace("\"", "\"\"") + '"';
+    }
+}

lastleg/src/main/resources/db/lastleg.sql

@@ -495,6 +495,44 @@ CREATE TABLE IF NOT EXISTS ll_inbound_pallet_merge (
   KEY idx_ll_inbound_merge_task (tenant_id, task_id), KEY idx_ll_inbound_merge_group (merge_group_no)
 ) ENGINE=InnoDB;
 
+SET @ddl = (SELECT IF(EXISTS (SELECT 1 FROM information_schema.columns WHERE table_schema=DATABASE() AND table_name='ll_inbound_plan_line' AND column_name='fba_warehouse_code'), 'SELECT 1', 'ALTER TABLE ll_inbound_plan_line ADD COLUMN fba_warehouse_code VARCHAR(128) NULL AFTER inbound_code'));
+PREPARE inbound_schema_stmt FROM @ddl; EXECUTE inbound_schema_stmt; DEALLOCATE PREPARE inbound_schema_stmt;
+UPDATE ll_inbound_plan_line l JOIN ll_order o ON o.id=l.order_id
+SET l.fba_warehouse_code=o.fba_warehouse_code
+WHERE l.fba_warehouse_code IS NULL AND o.fba_warehouse_code IS NOT NULL;
+
+CREATE TABLE IF NOT EXISTS ll_inbound_fba_appointment (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID',
+  tenant_id VARCHAR(128) NOT NULL,
+  appointment_no VARCHAR(64) NOT NULL,
+  appointment_at DATETIME(3) NOT NULL,
+  appointment_status VARCHAR(32) NOT NULL DEFAULT 'PENDING',
+  appointment_remark VARCHAR(1000) NULL,
+  fba_warehouse_code VARCHAR(128) NOT NULL,
+  selected_count INT NOT NULL DEFAULT 0,
+  created_by VARCHAR(128) NULL,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id),
+  UNIQUE KEY uk_ll_fba_appointment_no (tenant_id, appointment_no),
+  KEY idx_ll_fba_appointment_list (tenant_id, appointment_status, fba_warehouse_code, created_at)
+) ENGINE=InnoDB COMMENT='Batch FBA appointment';
+
+CREATE TABLE IF NOT EXISTS ll_inbound_fba_appointment_item (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID',
+  appointment_id BIGINT NOT NULL,
+  plan_id BIGINT NOT NULL,
+  line_id BIGINT NOT NULL,
+  order_id BIGINT NOT NULL,
+  inbound_code VARCHAR(128) NOT NULL,
+  fba_warehouse_code VARCHAR(128) NOT NULL,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id),
+  UNIQUE KEY uk_ll_fba_appointment_item_line (appointment_id, line_id),
+  KEY idx_ll_fba_appointment_item_plan (plan_id),
+  KEY idx_ll_fba_appointment_item_order (order_id)
+) ENGINE=InnoDB COMMENT='FBA appointment line snapshot';
+
 ALTER TABLE ll_loading_order_status_history
   MODIFY COLUMN id BIGINT NOT NULL AUTO_INCREMENT COMMENT '状态历史主键',
   MODIFY COLUMN order_id BIGINT NOT NULL COMMENT '尾程订单 ID',
@@ -503,3 +541,198 @@ ALTER TABLE ll_loading_order_status_history
   MODIFY COLUMN event_id VARCHAR(128) NULL COMMENT '触发事件 ID',
   MODIFY COLUMN remark VARCHAR(500) NULL COMMENT '状态变更备注',
   MODIFY COLUMN created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '记录时间';
+
+CREATE TABLE IF NOT EXISTS ll_inventory_balance (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID',
+  tenant_id VARCHAR(128) NOT NULL COMMENT 'Customer tenant', customer_name VARCHAR(255) NULL COMMENT 'Customer name snapshot',
+  overseas_warehouse_id VARCHAR(128) NOT NULL COMMENT 'Actual overseas warehouse ID',
+  overseas_warehouse_code VARCHAR(128) NULL COMMENT 'Actual overseas warehouse code snapshot',
+  overseas_warehouse_name VARCHAR(255) NULL COMMENT 'Actual overseas warehouse name snapshot',
+  destination_warehouse_id VARCHAR(128) NULL COMMENT 'Customer destination warehouse ID snapshot',
+  destination_warehouse_code VARCHAR(128) NOT NULL DEFAULT '' COMMENT 'Customer destination warehouse code snapshot',
+  destination_warehouse_name VARCHAR(255) NULL COMMENT 'Customer destination warehouse name snapshot',
+  sku_code VARCHAR(128) NOT NULL COMMENT 'SKU code', sku_name_zh VARCHAR(255) NULL COMMENT 'Chinese product name',
+  available_packages BIGINT NOT NULL DEFAULT 0, hold_packages BIGINT NOT NULL DEFAULT 0,
+  allocated_packages BIGINT NOT NULL DEFAULT 0, picked_packages BIGINT NOT NULL DEFAULT 0,
+  in_transit_packages BIGINT NOT NULL DEFAULT 0, receiving_packages BIGINT NOT NULL DEFAULT 0,
+  procurement_packages BIGINT NOT NULL DEFAULT 0,
+  available_quantity BIGINT NOT NULL DEFAULT 0, hold_quantity BIGINT NOT NULL DEFAULT 0,
+  allocated_quantity BIGINT NOT NULL DEFAULT 0, picked_quantity BIGINT NOT NULL DEFAULT 0,
+  in_transit_quantity BIGINT NOT NULL DEFAULT 0, receiving_quantity BIGINT NOT NULL DEFAULT 0,
+  procurement_quantity BIGINT NOT NULL DEFAULT 0,
+  version BIGINT NOT NULL DEFAULT 0 COMMENT 'Optimistic lock version',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id),
+  UNIQUE KEY uk_ll_inventory_dimension (tenant_id,overseas_warehouse_id,destination_warehouse_code,sku_code),
+  KEY idx_ll_inventory_list (tenant_id,overseas_warehouse_id,updated_at),
+  KEY idx_ll_inventory_sku (tenant_id,sku_code)
+) ENGINE=InnoDB COMMENT='Real-time SKU package inventory balance';
+
+CREATE TABLE IF NOT EXISTS ll_inventory_position (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID', tenant_id VARCHAR(128) NOT NULL, balance_id BIGINT NOT NULL,
+  overseas_warehouse_id VARCHAR(128) NOT NULL, destination_warehouse_code VARCHAR(128) NOT NULL DEFAULT '',
+  sku_code VARCHAR(128) NOT NULL, pallet_id BIGINT NOT NULL, pallet_no VARCHAR(64) NOT NULL,
+  batch_no VARCHAR(128) NOT NULL DEFAULT '', warehouse_location_id BIGINT NULL,
+  warehouse_location_code VARCHAR(128) NOT NULL COMMENT 'Informational default location code',
+  available_packages BIGINT NOT NULL DEFAULT 0, hold_packages BIGINT NOT NULL DEFAULT 0,
+  allocated_packages BIGINT NOT NULL DEFAULT 0, picked_packages BIGINT NOT NULL DEFAULT 0,
+  receiving_packages BIGINT NOT NULL DEFAULT 0, product_quantity BIGINT NOT NULL DEFAULT 0,
+  status VARCHAR(32) NOT NULL DEFAULT 'ACTIVE', version BIGINT NOT NULL DEFAULT 0,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id), UNIQUE KEY uk_ll_inventory_position (balance_id,pallet_id,batch_no),
+  KEY idx_ll_inventory_position_pallet (tenant_id,pallet_id),
+  KEY idx_ll_inventory_position_location (tenant_id,overseas_warehouse_id,warehouse_location_code)
+) ENGINE=InnoDB COMMENT='SKU package stock by pallet, default location and batch';
+
+CREATE TABLE IF NOT EXISTS ll_inventory_ledger (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID', tenant_id VARCHAR(128) NOT NULL,
+  balance_id BIGINT NOT NULL, position_id BIGINT NULL, overseas_warehouse_id VARCHAR(128) NOT NULL,
+  destination_warehouse_code VARCHAR(128) NOT NULL DEFAULT '', sku_code VARCHAR(128) NOT NULL,
+  pallet_id BIGINT NULL, pallet_no VARCHAR(64) NULL, batch_no VARCHAR(128) NULL,
+  warehouse_location_code VARCHAR(128) NULL, business_type VARCHAR(32) NOT NULL,
+  business_order_id BIGINT NULL, business_order_no VARCHAR(128) NULL, inbound_code VARCHAR(128) NULL,
+  inbound_order_no VARCHAR(128) NULL, outbound_order_no VARCHAR(128) NULL,
+  source_event_id VARCHAR(128) NULL, idempotency_key VARCHAR(255) NOT NULL,
+  status_from VARCHAR(32) NULL, status_to VARCHAR(32) NULL,
+  before_packages BIGINT NOT NULL, delta_packages BIGINT NOT NULL, after_packages BIGINT NOT NULL,
+  before_quantity BIGINT NOT NULL, delta_quantity BIGINT NOT NULL, after_quantity BIGINT NOT NULL,
+  operator_id VARCHAR(128) NULL, remark VARCHAR(1000) NULL,
+  occurred_at DATETIME(3) NOT NULL, created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id), UNIQUE KEY uk_ll_inventory_ledger_idempotency (tenant_id,idempotency_key),
+  KEY idx_ll_inventory_ledger_query (tenant_id,overseas_warehouse_id,occurred_at),
+  KEY idx_ll_inventory_ledger_sku (tenant_id,sku_code,occurred_at),
+  KEY idx_ll_inventory_ledger_business (tenant_id,business_type,business_order_no)
+) ENGINE=InnoDB COMMENT='Immutable inventory package and quantity ledger';
+
+CREATE TABLE IF NOT EXISTS ll_inventory_operation (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID', tenant_id VARCHAR(128) NOT NULL,
+  idempotency_key VARCHAR(255) NOT NULL, operation_type VARCHAR(32) NOT NULL,
+  request_hash VARCHAR(128) NOT NULL, status VARCHAR(32) NOT NULL DEFAULT 'PROCESSING',
+  result_json LONGTEXT NULL, last_error VARCHAR(2000) NULL,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id), UNIQUE KEY uk_ll_inventory_operation_key (tenant_id,idempotency_key),
+  KEY idx_ll_inventory_operation_status (tenant_id,status,updated_at)
+) ENGINE=InnoDB COMMENT='Inventory command idempotency record';
+
+CREATE TABLE IF NOT EXISTS ll_inbound_stock_receipt (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID', tenant_id VARCHAR(128) NOT NULL,
+  plan_id BIGINT NOT NULL, task_id BIGINT NOT NULL, allocation_id BIGINT NOT NULL,
+  line_id BIGINT NOT NULL, order_id BIGINT NOT NULL, inbound_code VARCHAR(128) NOT NULL,
+  sku_code VARCHAR(128) NOT NULL, sku_name_zh VARCHAR(255) NULL, source_detail_ids VARCHAR(2000) NULL,
+  warehouse_pallet_id BIGINT NOT NULL, pallet_no VARCHAR(64) NOT NULL,
+  warehouse_location_id BIGINT NULL, warehouse_location_code VARCHAR(128) NULL,
+  batch_no VARCHAR(128) NOT NULL, received_packages BIGINT NOT NULL, received_quantity BIGINT NOT NULL,
+  inventory_balance_id BIGINT NOT NULL, inventory_position_id BIGINT NOT NULL,
+  inventory_operation_key VARCHAR(255) NOT NULL, received_at DATETIME(3) NOT NULL,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id), UNIQUE KEY uk_ll_stock_receipt_task_allocation_sku (tenant_id,task_id,allocation_id,sku_code),
+  KEY idx_ll_stock_receipt_plan (tenant_id,plan_id,line_id), KEY idx_ll_stock_receipt_inventory (inventory_balance_id,inventory_position_id)
+) ENGINE=InnoDB COMMENT='Immutable SKU-pallet PDA stock-in receipt snapshot';
+
+CREATE TABLE IF NOT EXISTS ll_dispatch_order (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID',
+  tenant_id VARCHAR(128) NOT NULL,
+  dispatch_no VARCHAR(64) NOT NULL COMMENT 'Dispatch order number',
+  vehicle_plate VARCHAR(64) NULL COMMENT 'Editable vehicle plate; required before PDA picking',
+  driver_name VARCHAR(128) NULL,
+  driver_phone VARCHAR(64) NULL,
+  carrier_name VARCHAR(255) NULL,
+  route VARCHAR(255) NULL,
+  depart_at DATETIME(3) NULL,
+  fba_appointment_no VARCHAR(64) NULL,
+  fba_appointment_status VARCHAR(32) NOT NULL DEFAULT 'PENDING',
+  vehicle_appointment_status VARCHAR(32) NOT NULL DEFAULT 'PENDING',
+  estimated_arrival_at DATETIME(3) NULL,
+  status VARCHAR(32) NOT NULL DEFAULT 'PENDING_DEPARTURE',
+  item_count INT NOT NULL DEFAULT 0,
+  pallet_count INT NOT NULL DEFAULT 0,
+  package_count INT NOT NULL DEFAULT 0,
+  created_by VARCHAR(128) NULL,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id),
+  UNIQUE KEY uk_ll_dispatch_order_no (tenant_id,dispatch_no),
+  KEY idx_ll_dispatch_order_list (tenant_id,status,depart_at),
+  KEY idx_ll_dispatch_order_vehicle (tenant_id,vehicle_plate)
+) ENGINE=InnoDB COMMENT='Last-leg pre-dispatch order';
+
+CREATE TABLE IF NOT EXISTS ll_dispatch_item (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID',
+  dispatch_order_id BIGINT NOT NULL,
+  tenant_id VARCHAR(128) NOT NULL,
+  plan_id BIGINT NULL,
+  plan_pallet_id BIGINT NULL,
+  warehouse_pallet_id BIGINT NULL,
+  order_id BIGINT NULL,
+  order_no VARCHAR(64) NULL,
+  order_refs VARCHAR(2000) NULL,
+  inbound_code VARCHAR(128) NULL,
+  pallet_no VARCHAR(128) NOT NULL,
+  destination_warehouse_id VARCHAR(128) NULL,
+  destination_warehouse_code VARCHAR(128) NULL,
+  destination_warehouse_name VARCHAR(255) NULL,
+  fba_warehouse_code VARCHAR(128) NULL,
+  package_count INT NOT NULL DEFAULT 0,
+  volume_cbm DECIMAL(18,4) NOT NULL DEFAULT 0,
+  source_stage VARCHAR(32) NOT NULL COMMENT 'PLAN or RECEIVED',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id),
+  UNIQUE KEY uk_ll_dispatch_item_source (dispatch_order_id,plan_pallet_id,warehouse_pallet_id),
+  KEY idx_ll_dispatch_item_order (tenant_id,order_id),
+  KEY idx_ll_dispatch_item_inbound (tenant_id,inbound_code),
+  KEY idx_ll_dispatch_item_pallet (tenant_id,plan_pallet_id,warehouse_pallet_id)
+) ENGINE=InnoDB COMMENT='Frozen pallet and cargo snapshot for a dispatch order';
+
+CREATE TABLE IF NOT EXISTS ll_dispatch_pallet_lock (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID',
+  tenant_id VARCHAR(128) NOT NULL,
+  source_pallet_key VARCHAR(160) NOT NULL COMMENT 'PLAN:{planPalletId} or RECEIVED:{warehousePalletId}',
+  active_key VARCHAR(160) NULL COMMENT 'Equals source key only while lock is active',
+  plan_id BIGINT NULL,
+  plan_pallet_id BIGINT NULL,
+  warehouse_pallet_id BIGINT NULL,
+  dispatch_order_id BIGINT NOT NULL,
+  status VARCHAR(32) NOT NULL DEFAULT 'ACTIVE',
+  locked_at DATETIME(3) NOT NULL,
+  released_at DATETIME(3) NULL,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id),
+  UNIQUE KEY uk_ll_dispatch_active_pallet (tenant_id,active_key),
+  KEY idx_ll_dispatch_pallet_lock_order (tenant_id,dispatch_order_id,status),
+  KEY idx_ll_dispatch_pallet_lock_source (tenant_id,source_pallet_key,status)
+) ENGINE=InnoDB COMMENT='Active dispatch pallet exclusion lock';
+
+SET @ddl = (SELECT IF(EXISTS (SELECT 1 FROM information_schema.columns WHERE table_schema=DATABASE() AND table_name='ll_dispatch_item' AND column_name='order_refs'), 'SELECT 1', 'ALTER TABLE ll_dispatch_item ADD COLUMN order_refs VARCHAR(2000) NULL AFTER order_no'));
+PREPARE dispatch_schema_stmt FROM @ddl; EXECUTE dispatch_schema_stmt; DEALLOCATE PREPARE dispatch_schema_stmt;
+
+CREATE TABLE IF NOT EXISTS ll_dispatch_pda_task (
+  id BIGINT NOT NULL, tenant_id VARCHAR(128) NOT NULL, dispatch_order_id BIGINT NOT NULL,
+  task_no VARCHAR(64) NOT NULL, status VARCHAR(32) NOT NULL, operator_id VARCHAR(128) NULL,
+  operator_name VARCHAR(128) NULL, pushed_at DATETIME(3) NOT NULL, completed_at DATETIME(3) NULL,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id), UNIQUE KEY uk_ll_dispatch_pda_task_dispatch (tenant_id,dispatch_order_id),
+  UNIQUE KEY uk_ll_dispatch_pda_task_no (tenant_id,task_no)
+) ENGINE=InnoDB COMMENT='PDA task for a pre-arranged dispatch';
+
+CREATE TABLE IF NOT EXISTS ll_dispatch_pda_pick (
+  id BIGINT NOT NULL, tenant_id VARCHAR(128) NOT NULL, task_id BIGINT NOT NULL,
+  dispatch_item_id BIGINT NOT NULL, inventory_position_id BIGINT NOT NULL,
+  packages BIGINT NOT NULL, product_quantity BIGINT NOT NULL DEFAULT 0, idempotency_key VARCHAR(255) NOT NULL,
+  picked_at DATETIME(3) NOT NULL, created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id), UNIQUE KEY uk_ll_dispatch_pda_pick_key (tenant_id,idempotency_key),
+  KEY idx_ll_dispatch_pda_pick_item (tenant_id,task_id,dispatch_item_id)
+) ENGINE=InnoDB COMMENT='Immutable dispatch PDA pallet package picks';
+
+CREATE TABLE IF NOT EXISTS ll_dispatch_pda_operation (
+  id BIGINT NOT NULL, tenant_id VARCHAR(128) NOT NULL, task_id BIGINT NULL,
+  operation_type VARCHAR(32) NOT NULL, idempotency_key VARCHAR(255) NOT NULL, request_hash CHAR(64) NOT NULL,
+  result_json LONGTEXT NULL, status VARCHAR(32) NOT NULL,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id), UNIQUE KEY uk_ll_dispatch_pda_operation_key (tenant_id,idempotency_key)
+) ENGINE=InnoDB COMMENT='Idempotent dispatch PDA operations';

lastleg/src/test/java/com/baiyue/lastleg/dispatch/DispatchSchemaContractTest.java

@@ -0,0 +1,24 @@
+package com.baiyue.lastleg.dispatch;
+
+import org.junit.jupiter.api.Test;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+class DispatchSchemaContractTest {
+    @Test
+    void baselineDefinesDispatchHeadersItemsAndActivePalletLock() throws Exception {
+        String sql = Files.readString(Path.of("src/main/resources/db/lastleg.sql"));
+        assertTrue(sql.contains("CREATE TABLE IF NOT EXISTS ll_dispatch_order"));
+        assertTrue(sql.contains("CREATE TABLE IF NOT EXISTS ll_dispatch_item"));
+        assertTrue(sql.contains("CREATE TABLE IF NOT EXISTS ll_dispatch_pallet_lock"));
+        assertTrue(sql.contains("uk_ll_dispatch_active_pallet"));
+        assertTrue(sql.contains("CREATE TABLE IF NOT EXISTS ll_dispatch_pda_task"));
+        assertTrue(sql.contains("CREATE TABLE IF NOT EXISTS ll_dispatch_pda_pick"));
+        assertTrue(sql.contains("CREATE TABLE IF NOT EXISTS ll_dispatch_pda_operation"));
+        assertTrue(sql.contains("active_key"));
+        assertTrue(sql.contains("order_refs"));
+    }
+}

lastleg/src/test/java/com/baiyue/lastleg/dispatch/pda/service/DispatchPdaWorkflowServiceTest.java

@@ -0,0 +1,83 @@
+package com.baiyue.lastleg.dispatch.pda.service;
+
+import com.baiyue.lastleg.dispatch.entity.DispatchOrder;
+import com.baiyue.lastleg.dispatch.mapper.DispatchOrderMapper;
+import com.baiyue.lastleg.dispatch.pda.dto.DispatchPdaRequests;
+import com.baiyue.lastleg.dispatch.pda.dto.DispatchPdaResponses;
+import com.baiyue.lastleg.dispatch.pda.entity.DispatchPdaOperation;
+import com.baiyue.lastleg.dispatch.pda.mapper.DispatchPdaOperationMapper;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.test.util.ReflectionTestUtils;
+import org.springframework.web.server.ResponseStatusException;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(MockitoExtension.class)
+class DispatchPdaWorkflowServiceTest {
+    @Mock private DispatchOrderMapper orders;
+    @Mock private DispatchPdaOperationMapper operations;
+
+    @Test
+    void pushRequiresVehiclePlateBeforeCreatingPdaTask() {
+        DispatchPdaWorkflowService service = new DispatchPdaWorkflowService();
+        ReflectionTestUtils.setField(service, "orders", orders);
+        DispatchOrder order = new DispatchOrder();
+        order.setId(1L); order.setTenantId("100"); order.setDispatchNo("PC1"); order.setVehiclePlate("  ");
+        when(orders.findByDispatchNo("100", "PC1")).thenReturn(order);
+
+        ResponseStatusException exception = assertThrows(ResponseStatusException.class,
+            () -> service.push("100", "PC1", new DispatchPdaRequests.Push("push-1", null, null)));
+
+        assertEquals(409, exception.getStatusCode().value());
+    }
+
+    @Test
+    void departRequiresVehiclePlate() {
+        DispatchPdaWorkflowService service = new DispatchPdaWorkflowService();
+        ReflectionTestUtils.setField(service, "orders", orders);
+        ReflectionTestUtils.setField(service, "operations", operations);
+        DispatchOrder order = new DispatchOrder();
+        order.setId(1L); order.setTenantId("100"); order.setDispatchNo("PC1");
+        order.setStatus("READY_TO_DEPART"); order.setVehiclePlate(" ");
+        when(orders.findByDispatchNo("100", "PC1")).thenReturn(order);
+        when(orders.lockById("100", 1L)).thenReturn(order);
+        when(operations.findKey("100", "depart-1")).thenReturn(null);
+
+        ResponseStatusException exception = assertThrows(ResponseStatusException.class,
+            () -> service.depart("100", "PC1", "operator", new DispatchPdaRequests.Depart("depart-1", null)));
+
+        assertEquals(409, exception.getStatusCode().value());
+    }
+
+    @Test
+    void departedRequestReplaysAfterStatusChanged() throws Exception {
+        DispatchPdaWorkflowService service = new DispatchPdaWorkflowService();
+        ObjectMapper objectMapper = new ObjectMapper();
+        ReflectionTestUtils.setField(service, "orders", orders);
+        ReflectionTestUtils.setField(service, "operations", operations);
+        ReflectionTestUtils.setField(service, "objectMapper", objectMapper);
+        DispatchOrder order = new DispatchOrder();
+        order.setId(1L); order.setTenantId("100"); order.setDispatchNo("PC1"); order.setStatus("DEPARTED");
+        when(orders.findByDispatchNo("100", "PC1")).thenReturn(order);
+        when(orders.lockById("100", 1L)).thenReturn(order);
+        DispatchPdaOperation operation = new DispatchPdaOperation();
+        operation.setOperationType("DEPART"); operation.setStatus("COMPLETED");
+        operation.setResultJson(objectMapper.writeValueAsString(new DispatchPdaResponses.Departed("PC1", "DEPARTED", 12, false)));
+        when(operations.findKey("100", "depart-1")).thenReturn(operation);
+
+        // This exact key/hash pair models the persisted first execution result.
+        DispatchPdaRequests.Depart request = new DispatchPdaRequests.Depart("depart-1", null);
+        operation.setRequestHash(java.util.HexFormat.of().formatHex(java.security.MessageDigest.getInstance("SHA-256")
+            .digest(objectMapper.writeValueAsString(request).getBytes(java.nio.charset.StandardCharsets.UTF_8))));
+        DispatchPdaResponses.Departed result = service.depart("100", "PC1", "operator", request);
+
+        assertEquals("DEPARTED", result.status());
+        assertEquals(true, result.replayed());
+    }
+}

lastleg/src/test/java/com/baiyue/lastleg/dispatch/service/DispatchServiceTest.java

@@ -0,0 +1,93 @@
+package com.baiyue.lastleg.dispatch.service;
+
+import com.baiyue.lastleg.dispatch.dto.DispatchRequests;
+import com.baiyue.lastleg.dispatch.entity.DispatchItem;
+import com.baiyue.lastleg.dispatch.entity.DispatchOrder;
+import com.baiyue.lastleg.dispatch.entity.DispatchPalletLock;
+import com.baiyue.lastleg.dispatch.mapper.DispatchCandidateMapper;
+import com.baiyue.lastleg.dispatch.mapper.DispatchItemMapper;
+import com.baiyue.lastleg.dispatch.mapper.DispatchOrderMapper;
+import com.baiyue.lastleg.dispatch.mapper.DispatchPalletLockMapper;
+import com.baiyue.lastleg.dispatch.model.DispatchPalletCandidate;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.test.util.ReflectionTestUtils;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.math.BigDecimal;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.lenient;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(MockitoExtension.class)
+class DispatchServiceTest {
+    @Mock DispatchOrderMapper orders;
+    @Mock DispatchItemMapper items;
+    @Mock DispatchPalletLockMapper locks;
+    @Mock DispatchCandidateMapper candidates;
+    private DispatchService service;
+
+    @BeforeEach
+    void setUp() {
+        service = new DispatchService();
+        ReflectionTestUtils.setField(service, "orders", orders);
+        ReflectionTestUtils.setField(service, "items", items);
+        ReflectionTestUtils.setField(service, "locks", locks);
+        ReflectionTestUtils.setField(service, "candidates", candidates);
+        lenient().when(items.findByDispatchOrder(any(), any())).thenReturn(List.of());
+    }
+
+    @Test
+    void preArrangeLocksPalletWithoutVehicleCapacityValidation() throws Exception {
+        assertNotNull(DispatchService.class.getMethod("preArrange", String.class, String.class,
+            DispatchRequests.PreArrange.class).getAnnotation(Transactional.class));
+        when(candidates.lockSelected("100", List.of(10L))).thenReturn(List.of(candidate(10L, null, "ONT8")));
+
+        var result = service.preArrange("100", "7", new DispatchRequests.PreArrange(List.of(10L), null,
+            null, null, null));
+
+        assertEquals(DispatchService.PENDING_DEPARTURE, result.status());
+        assertEquals("ONT8", result.route());
+        ArgumentCaptor<DispatchOrder> dispatch = ArgumentCaptor.forClass(DispatchOrder.class);
+        verify(orders).insert(dispatch.capture());
+        assertEquals(1, dispatch.getValue().getPalletCount());
+        verify(locks).insert(any(DispatchPalletLock.class));
+        verify(items).insert(any(DispatchItem.class));
+    }
+
+    @Test
+    void rejectsPalletAlreadyLockedByAnotherDispatch() {
+        when(candidates.lockSelected("100", List.of(10L))).thenReturn(List.of(candidate(10L, null, "ONT8")));
+        DispatchPalletLock locked = new DispatchPalletLock();
+        when(locks.lockActive(eq("100"), eq("PLAN:10"))).thenReturn(locked);
+
+        assertThrows(ResponseStatusException.class, () -> service.preArrange("100", "7",
+            new DispatchRequests.PreArrange(List.of(10L), null, null, null, null)));
+        verify(orders, never()).insert(any(DispatchOrder.class));
+    }
+
+    @Test
+    void invalidCandidateStageIsRejected() {
+        assertThrows(ResponseStatusException.class, () -> service.candidates("100", null, null, "INVALID"));
+        verify(candidates, never()).available(any(), any(), any(), any());
+    }
+
+    private DispatchPalletCandidate candidate(long planPalletId, Long warehousePalletId, String destination) {
+        return new DispatchPalletCandidate(1L, planPalletId, warehousePalletId, 2L, "LMO1", "LMO1", "RK1",
+            "LIP1-P001", destination, destination, destination, destination, 12,
+            new BigDecimal("1.2000"), warehousePalletId == null ? "PLAN" : "RECEIVED");
+    }
+}

lastleg/src/test/java/com/baiyue/lastleg/inboundplan/InboundPlanSchemaContractTest.java

@@ -22,6 +22,10 @@ class InboundPlanSchemaContractTest {
             assertTrue(schema.contains("create table if not exists ll_inbound_pda_task"));
             assertTrue(schema.contains("create table if not exists ll_inbound_pda_operation"));
             assertTrue(schema.contains("create table if not exists ll_inbound_pallet_merge"));
+            assertTrue(schema.contains("create table if not exists ll_inbound_fba_appointment"));
+            assertTrue(schema.contains("unique key uk_ll_fba_appointment_no (tenant_id, appointment_no)"));
+            assertTrue(schema.contains("create table if not exists ll_inbound_fba_appointment_item"));
+            assertTrue(schema.contains("fba_warehouse_code"));
             assertFalse(schema.contains("cabinet_no"));
         }
     }

lastleg/src/test/java/com/baiyue/lastleg/inboundplan/pda/service/InboundPdaWorkflowServiceTest.java

@@ -29,6 +29,7 @@ import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyLong;
+import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.atLeastOnce;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.times;
@@ -39,6 +40,7 @@ import static org.mockito.Mockito.when;
 class InboundPdaWorkflowServiceTest {
     @Mock PdaWorkflowRepository repository;
     @Mock WarehouseResourceGateway warehouse;
+    @Mock InboundStockReceiptService stockReceipts;
     private InboundPdaWorkflowService service;
 
     private InboundPlan plan;
@@ -57,6 +59,7 @@ class InboundPdaWorkflowServiceTest {
         service = new InboundPdaWorkflowService();
         ReflectionTestUtils.setField(service, "repository", repository);
         ReflectionTestUtils.setField(service, "warehouse", warehouse);
+        ReflectionTestUtils.setField(service, "stockReceipts", stockReceipts);
         ReflectionTestUtils.setField(service, "sourceObjectMapper", new ObjectMapper().findAndRegisterModules());
         service.initializeObjectMapper();
         plan = plan();
@@ -249,6 +252,20 @@ class InboundPdaWorkflowServiceTest {
         assertEquals("COMPLETED", plan.getStatus());
         verify(repository).update(task);
         verify(repository).update(plan);
+        verify(stockReceipts).stockIn(eq("100"), eq(plan), eq(task), eq(List.of(targetLine)),
+            eq(List.of(target, moved)), any(), any());
+    }
+
+    @Test
+    void completedTaskReplayDoesNotRunStockInAgain() {
+        task.setStatus("COMPLETED");
+        activeTask();
+
+        var result = service.complete("100", "LIP1");
+
+        assertEquals("COMPLETED", result.status());
+        verify(stockReceipts, never()).stockIn(any(), any(), any(), any(), any(), any(), any());
+        verify(repository, never()).allocations(plan.getId());
     }
 
     @Test

lastleg/src/test/java/com/baiyue/lastleg/inboundplan/pda/service/InboundStockReceiptServiceTest.java

@@ -0,0 +1,164 @@
+package com.baiyue.lastleg.inboundplan.pda.service;
+
+import com.baiyue.lastleg.entity.LastlegOrder;
+import com.baiyue.lastleg.entity.LastlegOrderDetail;
+import com.baiyue.lastleg.inboundplan.entity.InboundPlan;
+import com.baiyue.lastleg.inboundplan.entity.InboundPlanLine;
+import com.baiyue.lastleg.inboundplan.entity.InboundPlanPallet;
+import com.baiyue.lastleg.inboundplan.entity.InboundPlanPalletAllocation;
+import com.baiyue.lastleg.inboundplan.pda.entity.InboundPdaTask;
+import com.baiyue.lastleg.inboundplan.pda.entity.InboundStockReceipt;
+import com.baiyue.lastleg.inboundplan.pda.mapper.InboundStockReceiptMapper;
+import com.baiyue.lastleg.inventory.command.dto.InventoryCommandRequests;
+import com.baiyue.lastleg.inventory.command.dto.InventoryCommandResponse;
+import com.baiyue.lastleg.inventory.command.service.InventoryCommandService;
+import com.baiyue.lastleg.mapper.LastlegOrderDetailMapper;
+import com.baiyue.lastleg.mapper.LastlegOrderMapper;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.test.util.ReflectionTestUtils;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyLong;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(MockitoExtension.class)
+class InboundStockReceiptServiceTest {
+    @Mock LastlegOrderMapper orders;
+    @Mock LastlegOrderDetailMapper details;
+    @Mock InboundStockReceiptMapper receipts;
+    @Mock InventoryCommandService inventory;
+    private InboundStockReceiptService service;
+
+    @BeforeEach
+    void setUp() {
+        service = new InboundStockReceiptService();
+        ReflectionTestUtils.setField(service, "orders", orders);
+        ReflectionTestUtils.setField(service, "details", details);
+        ReflectionTestUtils.setField(service, "receipts", receipts);
+        ReflectionTestUtils.setField(service, "inventory", inventory);
+        when(receipts.listTask("100", 2L)).thenReturn(List.of());
+    }
+
+    @Test
+    void writesOneReceiptPerSkuAndPalletAndUsesPdaPackageCount() {
+        Fixture fixture = fixture(5, 5, 5, 10);
+        when(orders.selectBatchIds(any())).thenReturn(List.of(fixture.order));
+        when(details.selectList(any())).thenReturn(List.of(fixture.detail));
+        when(inventory.stockIn(eq("100"), eq("operator"), any(InventoryCommandRequests.StockIn.class)))
+            .thenReturn(new InventoryCommandResponse(8L, "STOCK_IN", 9L, 10L, 5, 0, 0, 0, false, false));
+
+        service.stockIn("100", fixture.plan, fixture.task, List.of(fixture.line),
+            List.of(fixture.allocation), List.of(fixture.pallet), LocalDateTime.now());
+
+        ArgumentCaptor<InventoryCommandRequests.StockIn> request = ArgumentCaptor.forClass(InventoryCommandRequests.StockIn.class);
+        verify(inventory).stockIn(eq("100"), eq("operator"), request.capture());
+        assertEquals(5L, request.getValue().packages());
+        assertEquals(10L, request.getValue().productQuantity());
+        assertEquals("SKU-1", request.getValue().skuCode());
+        ArgumentCaptor<InboundStockReceipt> receipt = ArgumentCaptor.forClass(InboundStockReceipt.class);
+        verify(receipts).insert(receipt.capture());
+        assertEquals(5L, receipt.getValue().getReceivedPackages());
+        assertEquals(10L, receipt.getValue().getReceivedQuantity());
+        assertEquals(10L, receipt.getValue().getInventoryPositionId());
+    }
+
+    @Test
+    void rejectsMultiSkuLineSplitAcrossPalletsInsteadOfProportionalMisallocation() {
+        Fixture fixture = fixture(10, 5, 5, 10);
+        fixture.detail.setPackageCount(5);
+        LastlegOrderDetail second = detail(202L, "SKU-2", 5, 7);
+        InboundPlanPallet secondPallet = pallet(22L, 2002L);
+        InboundPlanPalletAllocation secondAllocation = allocation(32L, 12L, 22L, 5);
+        when(orders.selectBatchIds(any())).thenReturn(List.of(fixture.order));
+        when(details.selectList(any())).thenReturn(List.of(fixture.detail, second));
+
+        assertThrows(ResponseStatusException.class, () -> service.stockIn("100", fixture.plan, fixture.task,
+            List.of(fixture.line), List.of(fixture.allocation, secondAllocation),
+            List.of(fixture.pallet, secondPallet), LocalDateTime.now()));
+        verify(inventory, never()).stockIn(any(), any(), any());
+        verify(receipts, never()).insert(any(InboundStockReceipt.class));
+    }
+
+    @Test
+    void conservesSingleSkuPackagesAndQuantityAcrossPallets() {
+        Fixture fixture = fixture(5, 2, 2, 11);
+        InboundPlanPallet secondPallet = pallet(22L, 2002L);
+        InboundPlanPalletAllocation secondAllocation = allocation(32L, 12L, 22L, 3);
+        when(orders.selectBatchIds(any())).thenReturn(List.of(fixture.order));
+        when(details.selectList(any())).thenReturn(List.of(fixture.detail));
+        when(inventory.stockIn(eq("100"), eq("operator"), any(InventoryCommandRequests.StockIn.class)))
+            .thenReturn(new InventoryCommandResponse(8L, "STOCK_IN", 9L, 10L, 5, 0, 0, 0, false, false));
+
+        service.stockIn("100", fixture.plan, fixture.task, List.of(fixture.line),
+            List.of(fixture.allocation, secondAllocation), List.of(fixture.pallet, secondPallet), LocalDateTime.now());
+
+        ArgumentCaptor<InventoryCommandRequests.StockIn> requests = ArgumentCaptor.forClass(InventoryCommandRequests.StockIn.class);
+        verify(inventory, times(2)).stockIn(eq("100"), eq("operator"), requests.capture());
+        assertEquals(5L, requests.getAllValues().stream().mapToLong(InventoryCommandRequests.StockIn::packages).sum());
+        assertEquals(11L, requests.getAllValues().stream().mapToLong(InventoryCommandRequests.StockIn::productQuantity).sum());
+    }
+
+    @Test
+    void existingTaskReceiptMakesStockInReplayANoOp() {
+        Fixture fixture = fixture(5, 5, 5, 10);
+        when(receipts.listTask("100", fixture.task.getId())).thenReturn(List.of(new InboundStockReceipt()));
+
+        service.stockIn("100", fixture.plan, fixture.task, List.of(fixture.line),
+            List.of(fixture.allocation), List.of(fixture.pallet), LocalDateTime.now());
+
+        verify(inventory, never()).stockIn(any(), any(), any());
+        verify(receipts, never()).insert(any(InboundStockReceipt.class));
+    }
+
+    private Fixture fixture(int required, int planned, int picked, int quantity) {
+        InboundPlan plan = new InboundPlan(); plan.setId(1L); plan.setPlanNo("IP-1");
+        InboundPdaTask task = new InboundPdaTask(); task.setId(2L); task.setOperatorId("operator");
+        InboundPlanLine line = new InboundPlanLine(); line.setId(12L); line.setPlanId(1L); line.setOrderId(101L);
+        line.setInboundCode("IN-1"); line.setDestinationWarehouseId("WH-DEST");
+        line.setDestinationWarehouseCode("ONT8"); line.setDestinationWarehouseName("ONT8");
+        line.setRequiredPackageCount(required); line.setVolumeCbm(new BigDecimal("1.0"));
+        LastlegOrder order = new LastlegOrder(); order.setId(101L); order.setTenantId("100");
+        order.setOrderNo("LMO-1"); order.setCustomerName("Customer"); order.setOverseasWarehouseId("OW-1");
+        order.setOverseasWarehouseName("Warehouse"); order.setSourceEventId("evt-1"); order.setFbaWarehouseCode("ONT8");
+        LastlegOrderDetail detail = detail(201L, "SKU-1", required, quantity);
+        return new Fixture(plan, task, line, order, detail, allocation(31L, 12L, 21L, picked), pallet(21L, 2001L));
+    }
+
+    private LastlegOrderDetail detail(long id, String sku, int packages, int quantity) {
+        LastlegOrderDetail detail = new LastlegOrderDetail(); detail.setId(id); detail.setOrderId(101L);
+        detail.setSkuCode(sku); detail.setPackageCount(packages); detail.setProductQuantity(quantity);
+        detail.setProductNameZh(sku + " name"); return detail;
+    }
+
+    private InboundPlanPallet pallet(long id, long warehousePalletId) {
+        InboundPlanPallet pallet = new InboundPlanPallet(); pallet.setId(id); pallet.setPlanId(1L);
+        pallet.setPalletNo("PLT-" + id); pallet.setWarehousePalletId(warehousePalletId);
+        pallet.setWarehouseLocationId(3001L); return pallet;
+    }
+
+    private InboundPlanPalletAllocation allocation(long id, long lineId, long palletId, int picked) {
+        InboundPlanPalletAllocation allocation = new InboundPlanPalletAllocation(); allocation.setId(id);
+        allocation.setPlanId(1L); allocation.setLineId(lineId); allocation.setPalletId(palletId);
+        allocation.setPlannedPackageCount(picked); allocation.setPickedPackageCount(picked); return allocation;
+    }
+
+    private record Fixture(InboundPlan plan, InboundPdaTask task, InboundPlanLine line, LastlegOrder order,
+                           LastlegOrderDetail detail, InboundPlanPalletAllocation allocation,
+                           InboundPlanPallet pallet) {}
+}

lastleg/src/test/java/com/baiyue/lastleg/inboundplan/service/InboundFbaAppointmentServiceTest.java

@@ -0,0 +1,137 @@
+package com.baiyue.lastleg.inboundplan.service;
+
+import com.baiyue.lastleg.inboundplan.dto.BatchFbaAppointmentRequest;
+import com.baiyue.lastleg.inboundplan.entity.InboundFbaAppointment;
+import com.baiyue.lastleg.inboundplan.entity.InboundFbaAppointmentItem;
+import com.baiyue.lastleg.inboundplan.mapper.InboundFbaAppointmentItemMapper;
+import com.baiyue.lastleg.inboundplan.mapper.InboundFbaAppointmentMapper;
+import com.baiyue.lastleg.inboundplan.mapper.InboundFbaAppointmentQueryMapper;
+import com.baiyue.lastleg.inboundplan.model.FbaAppointmentLineSnapshot;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.test.util.ReflectionTestUtils;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.lenient;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(MockitoExtension.class)
+class InboundFbaAppointmentServiceTest {
+    @Mock InboundFbaAppointmentMapper appointmentMapper;
+    @Mock InboundFbaAppointmentItemMapper itemMapper;
+    @Mock InboundFbaAppointmentQueryMapper queryMapper;
+
+    private InboundFbaAppointmentService service;
+    private final LocalDateTime appointmentAt = LocalDateTime.of(2026, 8, 20, 10, 30);
+
+    @BeforeEach
+    void setUp() {
+        service = new InboundFbaAppointmentService();
+        ReflectionTestUtils.setField(service, "appointmentMapper", appointmentMapper);
+        ReflectionTestUtils.setField(service, "itemMapper", itemMapper);
+        ReflectionTestUtils.setField(service, "queryMapper", queryMapper);
+        lenient().when(itemMapper.selectList(any())).thenReturn(List.of());
+    }
+
+    @Test
+    void createsOneBatchForSelectedLinesAndFreezesFbaWarehouse() throws Exception {
+        assertEquals(true, InboundFbaAppointmentService.class
+            .getMethod("batchCreate", String.class, String.class, BatchFbaAppointmentRequest.class)
+            .getAnnotation(Transactional.class) != null);
+        when(queryMapper.lockLines("100", List.of(11L, 12L))).thenReturn(List.of(
+            line(11L, "IN-11", "ONT8"), line(12L, "IN-12", "ONT8")));
+
+        var result = service.batchCreate("100", "7", request(List.of(11L, 12L), "APT-1"));
+
+        assertEquals("APT-1", result.appointmentNo());
+        assertEquals("ONT8", result.fbaWarehouseCode());
+        assertEquals(2, result.selectedCount());
+        verify(appointmentMapper).insert(any(InboundFbaAppointment.class));
+        verify(itemMapper, org.mockito.Mockito.times(2)).insert(any(InboundFbaAppointmentItem.class));
+    }
+
+    @Test
+    void rejectsMixedFbaWarehouses() {
+        when(queryMapper.lockLines("100", List.of(11L, 12L))).thenReturn(List.of(
+            line(11L, "IN-11", "ONT8"), line(12L, "IN-12", "LAX9")));
+
+        assertThrows(ResponseStatusException.class,
+            () -> service.batchCreate("100", "7", request(List.of(11L, 12L), "APT-1")));
+        verify(appointmentMapper, never()).insert(any(InboundFbaAppointment.class));
+    }
+
+    @Test
+    void rejectsMissingLineFromAnotherTenant() {
+        when(queryMapper.lockLines("100", List.of(11L, 12L))).thenReturn(List.of(line(11L, "IN-11", "ONT8")));
+
+        assertThrows(ResponseStatusException.class,
+            () -> service.batchCreate("100", "7", request(List.of(11L, 12L), "APT-1")));
+    }
+
+    @Test
+    void duplicateLineIdsAreRejectedBeforeDatabaseAccess() {
+        assertThrows(ResponseStatusException.class,
+            () -> service.batchCreate("100", "7", request(List.of(11L, 11L), "APT-1")));
+        verify(queryMapper, never()).lockLines(any(), any());
+    }
+
+    @Test
+    void sameAppointmentReplayReturnsExistingResult() {
+        InboundFbaAppointment existing = appointment(99L, "APT-1", "ONT8");
+        InboundFbaAppointmentItem item = new InboundFbaAppointmentItem();
+        item.setLineId(11L);
+        item.setInboundCode("IN-11");
+        item.setFbaWarehouseCode("ONT8");
+        when(appointmentMapper.selectOne(any())).thenReturn(existing);
+        when(itemMapper.selectList(any())).thenReturn(List.of(item));
+
+        var result = service.batchCreate("100", "7", request(List.of(11L), "APT-1"));
+
+        assertEquals(99L, result.id());
+        verify(appointmentMapper, never()).insert(any(InboundFbaAppointment.class));
+    }
+
+    @Test
+    void sameAppointmentNumberWithDifferentSelectionConflicts() {
+        when(appointmentMapper.selectOne(any())).thenReturn(appointment(99L, "APT-1", "ONT8"));
+        InboundFbaAppointmentItem item = new InboundFbaAppointmentItem();
+        item.setLineId(11L);
+        when(itemMapper.selectList(any())).thenReturn(List.of(item));
+
+        assertThrows(ResponseStatusException.class,
+            () -> service.batchCreate("100", "7", request(List.of(12L), "APT-1")));
+    }
+
+    private BatchFbaAppointmentRequest request(List<Long> lineIds, String number) {
+        return new BatchFbaAppointmentRequest("100", lineIds, number, appointmentAt, "SUCCESS", "dock");
+    }
+
+    private FbaAppointmentLineSnapshot line(Long id, String inboundCode, String fba) {
+        return new FbaAppointmentLineSnapshot(id, 1000L, id + 100L, inboundCode, fba);
+    }
+
+    private InboundFbaAppointment appointment(Long id, String number, String fba) {
+        InboundFbaAppointment value = new InboundFbaAppointment();
+        value.setId(id);
+        value.setTenantId("100");
+        value.setAppointmentNo(number);
+        value.setAppointmentAt(appointmentAt);
+        value.setAppointmentStatus("SUCCESS");
+        value.setAppointmentRemark("dock");
+        value.setFbaWarehouseCode(fba);
+        value.setSelectedCount(1);
+        return value;
+    }
+}

lastleg/src/test/java/com/baiyue/lastleg/inventory/InventorySchemaContractTest.java

@@ -0,0 +1,78 @@
+package com.baiyue.lastleg.inventory;
+
+import com.baiyue.lastleg.inventory.entity.InventoryBalance;
+import com.baiyue.lastleg.inventory.entity.InventoryLedger;
+import com.baiyue.lastleg.inventory.entity.InventoryOperation;
+import com.baiyue.lastleg.inventory.entity.InventoryPosition;
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import org.junit.jupiter.api.Test;
+
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+class InventorySchemaContractTest {
+    @Test
+    void baselineDefinesInventoryDimensionsStatesAndIdempotency() throws IOException {
+        String schema;
+        try (var stream = getClass().getClassLoader().getResourceAsStream("db/lastleg.sql")) {
+            assertNotNull(stream, "lastleg schema must be available");
+            schema = new String(stream.readAllBytes(), StandardCharsets.UTF_8).toLowerCase();
+        }
+
+        assertTrue(schema.contains("create table if not exists ll_inventory_balance"));
+        assertTrue(schema.contains("unique key uk_ll_inventory_dimension (tenant_id,overseas_warehouse_id,destination_warehouse_code,sku_code)"));
+        assertTrue(schema.contains("available_packages bigint not null default 0"));
+        assertTrue(schema.contains("in_transit_packages bigint not null default 0"));
+        assertTrue(schema.contains("procurement_quantity bigint not null default 0"));
+        assertTrue(schema.contains("create table if not exists ll_inventory_position"));
+        assertTrue(schema.contains("unique key uk_ll_inventory_position (balance_id,pallet_id,batch_no)"));
+        assertTrue(schema.contains("warehouse_location_code varchar(128) not null"));
+        assertTrue(schema.contains("create table if not exists ll_inventory_ledger"));
+        assertTrue(schema.contains("business_order_id bigint null"));
+        assertTrue(schema.contains("inbound_code varchar(128) null"));
+        assertTrue(schema.contains("before_packages bigint not null"));
+        assertTrue(schema.contains("delta_packages bigint not null"));
+        assertTrue(schema.contains("after_packages bigint not null"));
+        assertTrue(schema.contains("unique key uk_ll_inventory_ledger_idempotency (tenant_id,idempotency_key)"));
+        assertTrue(schema.contains("create table if not exists ll_inventory_operation"));
+        assertTrue(schema.contains("create table if not exists ll_inbound_stock_receipt"));
+        assertTrue(schema.contains("unique key uk_ll_stock_receipt_task_allocation_sku (tenant_id,task_id,allocation_id,sku_code)"));
+        assertFalse(tableDefinition(schema, "ll_inventory_ledger").contains("updated_at"));
+    }
+
+    @Test
+    void inventoryEntitiesUseSnowflakeIds() throws NoSuchFieldException {
+        for (Class<?> type : new Class<?>[] {
+            InventoryBalance.class, InventoryPosition.class, InventoryLedger.class, InventoryOperation.class
+        }) {
+            TableId tableId = type.getDeclaredField("id").getAnnotation(TableId.class);
+            assertNotNull(tableId, type.getSimpleName());
+            assertEquals(IdType.ASSIGN_ID, tableId.type(), type.getSimpleName());
+        }
+    }
+
+    @Test
+    void incrementalMigrationIsAdditiveAndRerunnable() throws IOException {
+        String migration = Files.readString(Path.of("..", "scripts", "db", "incremental.sql"), StandardCharsets.UTF_8)
+            .toLowerCase();
+        assertTrue(migration.contains("2026-08-17 / 008"));
+        assertTrue(migration.contains("create table if not exists ll_inventory_balance"));
+        assertTrue(migration.contains("create table if not exists ll_inventory_position"));
+        assertTrue(migration.contains("create table if not exists ll_inventory_ledger"));
+        assertTrue(migration.contains("create table if not exists ll_inventory_operation"));
+    }
+
+    private static String tableDefinition(String schema, String tableName) {
+        int start = schema.indexOf("create table if not exists " + tableName);
+        int end = schema.indexOf("engine=innodb", start);
+        return schema.substring(start, end);
+    }
+}

lastleg/src/test/java/com/baiyue/lastleg/inventory/command/InventoryCommandServiceTest.java

@@ -0,0 +1,156 @@
+package com.baiyue.lastleg.inventory.command;
+
+import com.baiyue.lastleg.inventory.command.dto.InventoryCommandRequests;
+import com.baiyue.lastleg.inventory.command.dto.InventoryCommandResponse;
+import com.baiyue.lastleg.inventory.command.mapper.InventoryCommandMapper;
+import com.baiyue.lastleg.inventory.command.service.InventoryCommandService;
+import com.baiyue.lastleg.inventory.entity.InventoryBalance;
+import com.baiyue.lastleg.inventory.entity.InventoryLedger;
+import com.baiyue.lastleg.inventory.entity.InventoryOperation;
+import com.baiyue.lastleg.inventory.entity.InventoryPosition;
+import com.baiyue.lastleg.inventory.mapper.InventoryBalanceMapper;
+import com.baiyue.lastleg.inventory.mapper.InventoryLedgerMapper;
+import com.baiyue.lastleg.inventory.mapper.InventoryOperationMapper;
+import com.baiyue.lastleg.inventory.mapper.InventoryPositionMapper;
+import com.baiyue.lastleg.inboundplan.pda.gateway.WarehouseResourceGateway;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.test.util.ReflectionTestUtils;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.server.ResponseStatusException;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.lenient;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(MockitoExtension.class)
+class InventoryCommandServiceTest {
+    @Mock InventoryBalanceMapper balances;
+    @Mock InventoryPositionMapper positions;
+    @Mock InventoryLedgerMapper ledgers;
+    @Mock InventoryOperationMapper operations;
+    @Mock InventoryCommandMapper commands;
+    @Mock WarehouseResourceGateway warehouseGateway;
+
+    private InventoryCommandService service;
+
+    @BeforeEach
+    void setUp() {
+        service = new InventoryCommandService();
+        ReflectionTestUtils.setField(service, "balances", balances);
+        ReflectionTestUtils.setField(service, "positions", positions);
+        ReflectionTestUtils.setField(service, "ledgers", ledgers);
+        ReflectionTestUtils.setField(service, "operations", operations);
+        ReflectionTestUtils.setField(service, "commands", commands);
+        ReflectionTestUtils.setField(service, "warehouseGateway", warehouseGateway);
+        ReflectionTestUtils.setField(service, "objectMapper", new ObjectMapper());
+        lenient().when(operations.findIdempotency(any(), any())).thenReturn(null);
+    }
+
+    @Test
+    void stockInUpdatesBalancePositionAndLedgerInOneTransaction() throws Exception {
+        assertTrue(InventoryCommandService.class.getMethod("stockIn", String.class, String.class,
+            InventoryCommandRequests.StockIn.class).getAnnotation(Transactional.class) != null);
+        when(balances.lockDimension("100", "WH-1", "ONT8", "SKU-A")).thenReturn(null);
+        var result = service.stockIn("100", "7", stockIn("IN-1", "stock-in-1", 12, 24));
+
+        assertEquals(12, result.availablePackages());
+        assertFalse(result.replayed());
+        ArgumentCaptor<InventoryBalance> balance = ArgumentCaptor.forClass(InventoryBalance.class);
+        verify(balances).updateById(balance.capture());
+        assertEquals(12L, balance.getValue().getAvailablePackages());
+        verify(positions).insert(any(InventoryPosition.class));
+        verify(ledgers).insert(any(InventoryLedger.class));
+        verify(operations).updateById(any(InventoryOperation.class));
+    }
+
+    @Test
+    void holdRejectsWhenAvailablePackagesAreInsufficient() {
+        InventoryBalance balance = balance(200L, 5);
+        InventoryPosition position = position(201L, 200L, 5);
+        when(commands.lockPosition("100", 201L)).thenReturn(position);
+        when(commands.lockBalance("100", 200L)).thenReturn(balance);
+
+        assertThrows(ResponseStatusException.class,
+            () -> service.hold("100", "7", new InventoryCommandRequests.Move(
+                "100", 201L, 6, 0, "ORD-1", null, null, "hold-1", null)));
+        verify(positions, never()).updateById(any(InventoryPosition.class));
+        verify(balances, never()).updateById(any(InventoryBalance.class));
+    }
+
+    @Test
+    void replayUsesPersistedResultWithoutMutatingInventoryAgain() throws Exception {
+        var request = stockIn("IN-1", "stock-in-1", 12, 24);
+        when(balances.lockDimension("100", "WH-1", "ONT8", "SKU-A")).thenReturn(null);
+        service.stockIn("100", "7", request);
+        ArgumentCaptor<InventoryOperation> operation = ArgumentCaptor.forClass(InventoryOperation.class);
+        verify(operations).insert(operation.capture());
+        when(operations.findIdempotency("100", "stock-in-1")).thenReturn(operation.getValue());
+
+        InventoryCommandResponse replay = service.stockIn("100", "7", request);
+
+        assertTrue(replay.replayed());
+        verify(balances, times(1)).updateById(any(InventoryBalance.class));
+        verify(ledgers, times(1)).insert(any(InventoryLedger.class));
+    }
+
+    @Test
+    void shippingLastPackagesScrapsPalletWithoutReleasingItsVirtualLocation() {
+        InventoryBalance balance = balance(200L, 0);
+        balance.setPickedPackages(5L);
+        balance.setPickedQuantity(5L);
+        InventoryPosition position = position(201L, 200L, 0);
+        position.setPickedPackages(5L);
+        position.setProductQuantity(5L);
+        when(commands.lockPosition("100", 201L)).thenReturn(position);
+        when(commands.lockBalance("100", 200L)).thenReturn(balance);
+        when(commands.palletPackages("100", 300L)).thenReturn(0L);
+
+        var result = service.ship("100", "7", new InventoryCommandRequests.Move(
+            "100", 201L, 5, 5, "OUT-1", "OUT-1", null, "ship-1", null));
+
+        assertTrue(result.palletEmpty());
+        assertEquals("EMPTY", position.getStatus());
+        verify(warehouseGateway).scrapPallet("100", 300L);
+        verify(ledgers).insert(any(InventoryLedger.class));
+    }
+
+    private InventoryCommandRequests.StockIn stockIn(String inbound, String key, long packages, long quantity) {
+        return new InventoryCommandRequests.StockIn("100", "Customer 100", "WH-1", "WH1", "Warehouse 1",
+            "DEST-1", "ONT8", "ONT8", "SKU-A", "Widget", 300L, "PLT-1", null, null, null,
+            packages, quantity, "ORD-1", inbound, "EVT-1", key, null);
+    }
+
+    private InventoryBalance balance(Long id, long available) {
+        InventoryBalance value = new InventoryBalance();
+        value.setId(id); value.setTenantId("100"); value.setOverseasWarehouseId("WH-1");
+        value.setDestinationWarehouseCode("ONT8"); value.setSkuCode("SKU-A");
+        value.setAvailablePackages(available); value.setAvailableQuantity(available);
+        value.setHoldPackages(0L); value.setAllocatedPackages(0L); value.setPickedPackages(0L);
+        value.setHoldQuantity(0L); value.setAllocatedQuantity(0L); value.setPickedQuantity(0L);
+        value.setVersion(0L);
+        return value;
+    }
+
+    private InventoryPosition position(Long id, Long balanceId, long available) {
+        InventoryPosition value = new InventoryPosition();
+        value.setId(id); value.setTenantId("100"); value.setBalanceId(balanceId);
+        value.setPalletId(300L); value.setPalletNo("PLT-1"); value.setBatchNo("DEFAULT");
+        value.setAvailablePackages(available); value.setHoldPackages(0L);
+        value.setAllocatedPackages(0L); value.setPickedPackages(0L); value.setReceivingPackages(0L);
+        value.setProductQuantity(available); value.setVersion(0L);
+        return value;
+    }
+}

lastleg/src/test/java/com/baiyue/lastleg/inventory/query/controller/InventoryQueryControllerTest.java

@@ -0,0 +1,58 @@
+package com.baiyue.lastleg.inventory.query.controller;
+
+import com.baiyue.common.security.AuthenticatedUser;
+import com.baiyue.lastleg.inventory.query.dto.InventoryQueryRequests;
+import com.baiyue.lastleg.inventory.query.service.InventoryQueryService;
+import org.junit.jupiter.api.Test;
+import org.springframework.test.util.ReflectionTestUtils;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.util.Set;
+
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+
+class InventoryQueryControllerTest {
+    private final InventoryQueryService service = mock(InventoryQueryService.class);
+    private final InventoryQueryController controller = controller();
+    private final InventoryQueryRequests.BalanceQuery query = new InventoryQueryRequests.BalanceQuery(
+        1, 20, null, null, null, null, null, null, null);
+
+    @Test
+    void merchantCannotOverrideCustomerScope() {
+        controller.balances(user(100L, "MERCHANT"), "200", query);
+        verify(service).balances(eq("100"), eq(query));
+    }
+
+    @Test
+    void platformMustSelectCustomer() {
+        assertThrows(ResponseStatusException.class,
+            () -> controller.summary(user(0L, "PLATFORM"), null, query));
+    }
+
+    @Test
+    void platformCanQuerySelectedCustomer() {
+        controller.summary(user(0L, "PLATFORM"), "200", query);
+        verify(service).dashboard(eq("200"), eq(query));
+    }
+
+    @Test
+    void unauthenticatedPositionDetailIsRejected() {
+        InventoryQueryRequests.PositionQuery positionQuery =
+            new InventoryQueryRequests.PositionQuery(null, null, null);
+        assertThrows(ResponseStatusException.class,
+            () -> controller.positions(null, null, 1L, positionQuery));
+    }
+
+    private static AuthenticatedUser user(long tenantId, String appCode) {
+        return new AuthenticatedUser(1L, tenantId, tenantId, 1L, "tester", appCode, "WEB", Set.of());
+    }
+
+    private InventoryQueryController controller() {
+        InventoryQueryController controller = new InventoryQueryController();
+        ReflectionTestUtils.setField(controller, "service", service);
+        return controller;
+    }
+}

lastleg/src/test/java/com/baiyue/lastleg/inventory/query/service/InventoryQueryServiceTest.java

@@ -0,0 +1,97 @@
+package com.baiyue.lastleg.inventory.query.service;
+
+import com.baiyue.lastleg.inventory.entity.InventoryBalance;
+import com.baiyue.lastleg.inventory.query.dto.InventoryDashboardResponse;
+import com.baiyue.lastleg.inventory.query.dto.InventoryQueryRequests;
+import com.baiyue.lastleg.inventory.query.mapper.InventoryQueryMapper;
+import com.baiyue.lastleg.inventory.query.model.InventoryAggregateProjection;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.test.util.ReflectionTestUtils;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+class InventoryQueryServiceTest {
+    private final InventoryQueryMapper mapper = mock(InventoryQueryMapper.class);
+    private final InventoryQueryService service = new InventoryQueryService();
+
+    @BeforeEach
+    void setUp() {
+        ReflectionTestUtils.setField(service, "mapper", mapper);
+    }
+
+    @Test
+    void dashboardUsesSameTenantAndFiltersForTotalsAndPalletCount() {
+        InventoryQueryRequests.BalanceQuery query = balanceQuery("AVAILABLE");
+        InventoryAggregateProjection aggregate = new InventoryAggregateProjection();
+        aggregate.setDimensionCount(2L);
+        aggregate.setAvailablePackages(12L);
+        aggregate.setAvailableQuantity(120L);
+        when(mapper.aggregate("100", query)).thenReturn(aggregate);
+        when(mapper.countPallets("100", query)).thenReturn(3L);
+
+        InventoryDashboardResponse result = service.dashboard("100", query);
+
+        assertEquals(2, result.skuDimensionCount());
+        assertEquals(3, result.palletCount());
+        assertEquals(12, result.totalPackages());
+        assertEquals(120, result.totalQuantity());
+    }
+
+    @Test
+    void balancePageIsBoundToRequestedTenant() {
+        InventoryQueryRequests.BalanceQuery query = balanceQuery(null);
+        InventoryBalance balance = new InventoryBalance();
+        balance.setId(1L);
+        balance.setTenantId("100");
+        when(mapper.countBalances("100", query)).thenReturn(1L);
+        when(mapper.balances("100", query, 0, 20)).thenReturn(List.of(balance));
+
+        service.balances("100", query);
+
+        verify(mapper).countBalances("100", query);
+        verify(mapper).balances("100", query, 0, 20);
+    }
+
+    @Test
+    void unknownStatusIsRejectedBeforeDatabaseQuery() {
+        InventoryQueryRequests.BalanceQuery query = balanceQuery("DAMAGED");
+
+        assertThrows(ResponseStatusException.class, () -> service.balances("100", query));
+        verify(mapper, never()).countBalances(any(), any());
+    }
+
+    @Test
+    void positionDetailDoesNotLeakAnotherTenantBalance() {
+        InventoryQueryRequests.PositionQuery query = new InventoryQueryRequests.PositionQuery(null, null, null);
+        when(mapper.countOwnedBalance("100", 99L)).thenReturn(0L);
+
+        assertThrows(ResponseStatusException.class, () -> service.positions("100", 99L, query));
+        verify(mapper, never()).positions(eq("100"), eq(99L), any());
+    }
+
+    @Test
+    void reversedLedgerDateRangeIsRejected() {
+        InventoryQueryRequests.LedgerQuery query = new InventoryQueryRequests.LedgerQuery(
+            1, 20, null, null, null, null, null, null, null, null, null,
+            java.time.LocalDateTime.of(2026, 8, 18, 0, 0),
+            java.time.LocalDateTime.of(2026, 8, 17, 0, 0));
+
+        assertThrows(ResponseStatusException.class, () -> service.ledgers("100", query));
+        verify(mapper, never()).countLedgers(any(), any());
+    }
+
+    private static InventoryQueryRequests.BalanceQuery balanceQuery(String status) {
+        return new InventoryQueryRequests.BalanceQuery(1, 20, null, null, null, null, null, null, status);
+    }
+}

scripts/db/incremental.sql

@@ -101,7 +101,7 @@ CREATE TABLE IF NOT EXISTS wh_pallet (
   tenant_id BIGINT UNSIGNED NOT NULL COMMENT '数据所属租户ID',
   warehouse_id BIGINT UNSIGNED NOT NULL COMMENT '所属仓库ID',
   location_id BIGINT UNSIGNED NULL COMMENT '同仓库内绑定的库位ID，可为空',
-  pallet_code VARCHAR(64) NOT NULL COMMENT '仓库内唯一托盘编码',
+  pallet_code VARCHAR(128) NOT NULL COMMENT '仓库内唯一托盘编码',
   pallet_type VARCHAR(32) NOT NULL COMMENT '托盘类型',
   capacity_cbm DECIMAL(18,4) NOT NULL DEFAULT 2.0000 COMMENT '托盘容量（立方米）',
   unit_price DECIMAL(18,2) NOT NULL DEFAULT 0.00 COMMENT '托盘单价',
@@ -165,7 +165,7 @@ ALTER TABLE wh_pallet
   MODIFY COLUMN tenant_id BIGINT UNSIGNED NOT NULL COMMENT '数据所属租户ID',
   MODIFY COLUMN warehouse_id BIGINT UNSIGNED NOT NULL COMMENT '所属仓库ID',
   MODIFY COLUMN location_id BIGINT UNSIGNED NULL COMMENT '同仓库内绑定的库位ID，可为空',
-  MODIFY COLUMN pallet_code VARCHAR(64) NOT NULL COMMENT '仓库内唯一托盘编码',
+  MODIFY COLUMN pallet_code VARCHAR(128) NOT NULL COMMENT '仓库内唯一托盘编码',
   MODIFY COLUMN pallet_type VARCHAR(32) NOT NULL COMMENT '托盘类型',
   MODIFY COLUMN capacity_cbm DECIMAL(18,4) NOT NULL DEFAULT 2.0000 COMMENT '托盘容量（立方米）',
   MODIFY COLUMN unit_price DECIMAL(18,2) NOT NULL DEFAULT 0.00 COMMENT '托盘单价',
@@ -611,3 +611,259 @@ SET @ddl = (SELECT IF(EXISTS (SELECT 1 FROM information_schema.statistics WHERE
 PREPARE migration_stmt FROM @ddl; EXECUTE migration_stmt; DEALLOCATE PREPARE migration_stmt;
 SET @ddl = (SELECT IF(EXISTS (SELECT 1 FROM information_schema.statistics WHERE table_schema=DATABASE() AND table_name='wh_service_capability' AND index_name='idx_capability_query'), 'SELECT 1', 'CREATE INDEX idx_capability_query ON wh_service_capability(tenant_id,warehouse_id,enabled,deleted)'));
 PREPARE migration_stmt FROM @ddl; EXECUTE migration_stmt; DEALLOCATE PREPARE migration_stmt;
+
+-- ============================================================================
+-- 2026-08-17 / 007
+-- Last-leg batch FBA appointments
+-- ============================================================================
+
+USE baiyue_lastleg;
+
+SET @ddl = (SELECT IF(EXISTS (SELECT 1 FROM information_schema.columns WHERE table_schema=DATABASE() AND table_name='ll_inbound_plan_line' AND column_name='fba_warehouse_code'), 'SELECT 1', 'ALTER TABLE ll_inbound_plan_line ADD COLUMN fba_warehouse_code VARCHAR(128) NULL AFTER inbound_code'));
+PREPARE migration_stmt FROM @ddl; EXECUTE migration_stmt; DEALLOCATE PREPARE migration_stmt;
+UPDATE ll_inbound_plan_line l JOIN ll_order o ON o.id=l.order_id
+SET l.fba_warehouse_code=o.fba_warehouse_code
+WHERE l.fba_warehouse_code IS NULL AND o.fba_warehouse_code IS NOT NULL;
+
+CREATE TABLE IF NOT EXISTS ll_inbound_fba_appointment (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID',
+  tenant_id VARCHAR(128) NOT NULL,
+  appointment_no VARCHAR(64) NOT NULL,
+  appointment_at DATETIME(3) NOT NULL,
+  appointment_status VARCHAR(32) NOT NULL DEFAULT 'PENDING',
+  appointment_remark VARCHAR(1000) NULL,
+  fba_warehouse_code VARCHAR(128) NOT NULL,
+  selected_count INT NOT NULL DEFAULT 0,
+  created_by VARCHAR(128) NULL,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id),
+  UNIQUE KEY uk_ll_fba_appointment_no (tenant_id, appointment_no),
+  KEY idx_ll_fba_appointment_list (tenant_id, appointment_status, fba_warehouse_code, created_at)
+) ENGINE=InnoDB COMMENT='Batch FBA appointment';
+
+CREATE TABLE IF NOT EXISTS ll_inbound_fba_appointment_item (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID',
+  appointment_id BIGINT NOT NULL,
+  plan_id BIGINT NOT NULL,
+  line_id BIGINT NOT NULL,
+  order_id BIGINT NOT NULL,
+  inbound_code VARCHAR(128) NOT NULL,
+  fba_warehouse_code VARCHAR(128) NOT NULL,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id),
+  UNIQUE KEY uk_ll_fba_appointment_item_line (appointment_id, line_id),
+  KEY idx_ll_fba_appointment_item_plan (plan_id),
+  KEY idx_ll_fba_appointment_item_order (order_id)
+) ENGINE=InnoDB COMMENT='FBA appointment line snapshot';
+
+-- ============================================================================
+-- 2026-08-17 / 008
+-- Last-leg SKU/package inventory balances, positions and immutable ledger
+-- ============================================================================
+
+USE baiyue_lastleg;
+
+CREATE TABLE IF NOT EXISTS ll_inventory_balance (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID', tenant_id VARCHAR(128) NOT NULL, customer_name VARCHAR(255) NULL,
+  overseas_warehouse_id VARCHAR(128) NOT NULL, overseas_warehouse_code VARCHAR(128) NULL,
+  overseas_warehouse_name VARCHAR(255) NULL, destination_warehouse_id VARCHAR(128) NULL,
+  destination_warehouse_code VARCHAR(128) NOT NULL DEFAULT '', destination_warehouse_name VARCHAR(255) NULL,
+  sku_code VARCHAR(128) NOT NULL, sku_name_zh VARCHAR(255) NULL,
+  available_packages BIGINT NOT NULL DEFAULT 0, hold_packages BIGINT NOT NULL DEFAULT 0,
+  allocated_packages BIGINT NOT NULL DEFAULT 0, picked_packages BIGINT NOT NULL DEFAULT 0,
+  in_transit_packages BIGINT NOT NULL DEFAULT 0, receiving_packages BIGINT NOT NULL DEFAULT 0,
+  procurement_packages BIGINT NOT NULL DEFAULT 0,
+  available_quantity BIGINT NOT NULL DEFAULT 0, hold_quantity BIGINT NOT NULL DEFAULT 0,
+  allocated_quantity BIGINT NOT NULL DEFAULT 0, picked_quantity BIGINT NOT NULL DEFAULT 0,
+  in_transit_quantity BIGINT NOT NULL DEFAULT 0, receiving_quantity BIGINT NOT NULL DEFAULT 0,
+  procurement_quantity BIGINT NOT NULL DEFAULT 0, version BIGINT NOT NULL DEFAULT 0,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id),
+  UNIQUE KEY uk_ll_inventory_dimension (tenant_id,overseas_warehouse_id,destination_warehouse_code,sku_code),
+  KEY idx_ll_inventory_list (tenant_id,overseas_warehouse_id,updated_at),
+  KEY idx_ll_inventory_sku (tenant_id,sku_code)
+) ENGINE=InnoDB COMMENT='Real-time SKU package inventory balance';
+
+CREATE TABLE IF NOT EXISTS ll_inventory_position (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID', tenant_id VARCHAR(128) NOT NULL, balance_id BIGINT NOT NULL,
+  overseas_warehouse_id VARCHAR(128) NOT NULL, destination_warehouse_code VARCHAR(128) NOT NULL DEFAULT '',
+  sku_code VARCHAR(128) NOT NULL, pallet_id BIGINT NOT NULL, pallet_no VARCHAR(64) NOT NULL,
+  batch_no VARCHAR(128) NOT NULL DEFAULT '', warehouse_location_id BIGINT NULL,
+  warehouse_location_code VARCHAR(128) NOT NULL,
+  available_packages BIGINT NOT NULL DEFAULT 0, hold_packages BIGINT NOT NULL DEFAULT 0,
+  allocated_packages BIGINT NOT NULL DEFAULT 0, picked_packages BIGINT NOT NULL DEFAULT 0,
+  receiving_packages BIGINT NOT NULL DEFAULT 0, product_quantity BIGINT NOT NULL DEFAULT 0,
+  status VARCHAR(32) NOT NULL DEFAULT 'ACTIVE', version BIGINT NOT NULL DEFAULT 0,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id), UNIQUE KEY uk_ll_inventory_position (balance_id,pallet_id,batch_no),
+  KEY idx_ll_inventory_position_pallet (tenant_id,pallet_id),
+  KEY idx_ll_inventory_position_location (tenant_id,overseas_warehouse_id,warehouse_location_code)
+) ENGINE=InnoDB COMMENT='SKU package stock by pallet, default location and batch';
+
+CREATE TABLE IF NOT EXISTS ll_inventory_ledger (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID', tenant_id VARCHAR(128) NOT NULL,
+  balance_id BIGINT NOT NULL, position_id BIGINT NULL, overseas_warehouse_id VARCHAR(128) NOT NULL,
+  destination_warehouse_code VARCHAR(128) NOT NULL DEFAULT '', sku_code VARCHAR(128) NOT NULL,
+  pallet_id BIGINT NULL, pallet_no VARCHAR(64) NULL, batch_no VARCHAR(128) NULL,
+  warehouse_location_code VARCHAR(128) NULL, business_type VARCHAR(32) NOT NULL,
+  business_order_id BIGINT NULL, business_order_no VARCHAR(128) NULL, inbound_code VARCHAR(128) NULL,
+  inbound_order_no VARCHAR(128) NULL, outbound_order_no VARCHAR(128) NULL,
+  source_event_id VARCHAR(128) NULL, idempotency_key VARCHAR(255) NOT NULL,
+  status_from VARCHAR(32) NULL, status_to VARCHAR(32) NULL,
+  before_packages BIGINT NOT NULL, delta_packages BIGINT NOT NULL, after_packages BIGINT NOT NULL,
+  before_quantity BIGINT NOT NULL, delta_quantity BIGINT NOT NULL, after_quantity BIGINT NOT NULL,
+  operator_id VARCHAR(128) NULL, remark VARCHAR(1000) NULL,
+  occurred_at DATETIME(3) NOT NULL, created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id), UNIQUE KEY uk_ll_inventory_ledger_idempotency (tenant_id,idempotency_key),
+  KEY idx_ll_inventory_ledger_query (tenant_id,overseas_warehouse_id,occurred_at),
+  KEY idx_ll_inventory_ledger_sku (tenant_id,sku_code,occurred_at),
+  KEY idx_ll_inventory_ledger_business (tenant_id,business_type,business_order_no)
+) ENGINE=InnoDB COMMENT='Immutable inventory package and quantity ledger';
+
+CREATE TABLE IF NOT EXISTS ll_inventory_operation (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID', tenant_id VARCHAR(128) NOT NULL,
+  idempotency_key VARCHAR(255) NOT NULL, operation_type VARCHAR(32) NOT NULL,
+  request_hash VARCHAR(128) NOT NULL, status VARCHAR(32) NOT NULL DEFAULT 'PROCESSING',
+  result_json LONGTEXT NULL, last_error VARCHAR(2000) NULL,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id), UNIQUE KEY uk_ll_inventory_operation_key (tenant_id,idempotency_key),
+  KEY idx_ll_inventory_operation_status (tenant_id,status,updated_at)
+) ENGINE=InnoDB COMMENT='Inventory command idempotency record';
+
+-- ============================================================================
+-- 2026-08-17 / 009
+-- PDA SKU/pallet receipt snapshots for stock-in closure
+-- ============================================================================
+
+USE baiyue_lastleg;
+
+CREATE TABLE IF NOT EXISTS ll_inbound_stock_receipt (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID', tenant_id VARCHAR(128) NOT NULL,
+  plan_id BIGINT NOT NULL, task_id BIGINT NOT NULL, allocation_id BIGINT NOT NULL,
+  line_id BIGINT NOT NULL, order_id BIGINT NOT NULL, inbound_code VARCHAR(128) NOT NULL,
+  sku_code VARCHAR(128) NOT NULL, sku_name_zh VARCHAR(255) NULL, source_detail_ids VARCHAR(2000) NULL,
+  warehouse_pallet_id BIGINT NOT NULL, pallet_no VARCHAR(64) NOT NULL,
+  warehouse_location_id BIGINT NULL, warehouse_location_code VARCHAR(128) NULL,
+  batch_no VARCHAR(128) NOT NULL, received_packages BIGINT NOT NULL, received_quantity BIGINT NOT NULL,
+  inventory_balance_id BIGINT NOT NULL, inventory_position_id BIGINT NOT NULL,
+  inventory_operation_key VARCHAR(255) NOT NULL, received_at DATETIME(3) NOT NULL,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id), UNIQUE KEY uk_ll_stock_receipt_task_allocation_sku (tenant_id,task_id,allocation_id,sku_code),
+  KEY idx_ll_stock_receipt_plan (tenant_id,plan_id,line_id), KEY idx_ll_stock_receipt_inventory (inventory_balance_id,inventory_position_id)
+) ENGINE=InnoDB COMMENT='Immutable SKU-pallet PDA stock-in receipt snapshot';
+
+-- 2026-08-17 warehouse virtual location and generated pallet code support.
+USE baiyue_lastlag_warehouse;
+
+SET @ddl = (SELECT IF(EXISTS (SELECT 1 FROM information_schema.columns WHERE table_schema=DATABASE()
+    AND table_name='wh_pallet' AND column_name='pallet_code'),
+    'ALTER TABLE wh_pallet MODIFY COLUMN pallet_code VARCHAR(128) NOT NULL COMMENT ''Warehouse pallet code''', 'SELECT 1'));
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+INSERT INTO wh_location (id, tenant_id, warehouse_id, zone_code, location_code, location_type,
+                         max_load_kg, status, remark)
+SELECT UUID_SHORT(), w.tenant_id, w.id, 'DEFAULT', CONCAT('LOC-', w.warehouse_code, '-DEFAULT'),
+       'VIRTUAL', 999999999.000, 'ACTIVE', 'System default virtual location'
+FROM wh_warehouse w
+WHERE NOT EXISTS (
+    SELECT 1 FROM wh_location l
+    WHERE l.tenant_id = w.tenant_id AND l.warehouse_id = w.id
+      AND l.location_code = CONCAT('LOC-', w.warehouse_code, '-DEFAULT') AND l.deleted = 0
+);
+
+-- ============================================================================
+-- 2026-08-17 / 010
+-- Last-leg pre-dispatch orders and pallet locks
+-- ============================================================================
+
+USE baiyue_lastleg;
+
+CREATE TABLE IF NOT EXISTS ll_dispatch_order (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID', tenant_id VARCHAR(128) NOT NULL,
+  dispatch_no VARCHAR(64) NOT NULL, vehicle_plate VARCHAR(64) NULL, driver_name VARCHAR(128) NULL,
+  driver_phone VARCHAR(64) NULL, carrier_name VARCHAR(255) NULL, route VARCHAR(255) NULL,
+  depart_at DATETIME(3) NULL, fba_appointment_no VARCHAR(64) NULL,
+  fba_appointment_status VARCHAR(32) NOT NULL DEFAULT 'PENDING',
+  vehicle_appointment_status VARCHAR(32) NOT NULL DEFAULT 'PENDING',
+  estimated_arrival_at DATETIME(3) NULL, status VARCHAR(32) NOT NULL DEFAULT 'PENDING_DEPARTURE',
+  item_count INT NOT NULL DEFAULT 0, pallet_count INT NOT NULL DEFAULT 0, package_count INT NOT NULL DEFAULT 0,
+  created_by VARCHAR(128) NULL, created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id), UNIQUE KEY uk_ll_dispatch_order_no (tenant_id,dispatch_no),
+  KEY idx_ll_dispatch_order_list (tenant_id,status,depart_at), KEY idx_ll_dispatch_order_vehicle (tenant_id,vehicle_plate)
+) ENGINE=InnoDB COMMENT='Last-leg pre-dispatch order';
+
+CREATE TABLE IF NOT EXISTS ll_dispatch_item (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID', dispatch_order_id BIGINT NOT NULL, tenant_id VARCHAR(128) NOT NULL,
+  plan_id BIGINT NULL, plan_pallet_id BIGINT NULL, warehouse_pallet_id BIGINT NULL,
+  order_id BIGINT NULL, order_no VARCHAR(64) NULL, order_refs VARCHAR(2000) NULL, inbound_code VARCHAR(128) NULL, pallet_no VARCHAR(128) NOT NULL,
+  destination_warehouse_id VARCHAR(128) NULL, destination_warehouse_code VARCHAR(128) NULL,
+  destination_warehouse_name VARCHAR(255) NULL, fba_warehouse_code VARCHAR(128) NULL,
+  package_count INT NOT NULL DEFAULT 0, volume_cbm DECIMAL(18,4) NOT NULL DEFAULT 0,
+  source_stage VARCHAR(32) NOT NULL, created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id), UNIQUE KEY uk_ll_dispatch_item_source (dispatch_order_id,plan_pallet_id,warehouse_pallet_id),
+  KEY idx_ll_dispatch_item_order (tenant_id,order_id), KEY idx_ll_dispatch_item_inbound (tenant_id,inbound_code),
+  KEY idx_ll_dispatch_item_pallet (tenant_id,plan_pallet_id,warehouse_pallet_id)
+) ENGINE=InnoDB COMMENT='Frozen pallet and cargo snapshot for a dispatch order';
+
+CREATE TABLE IF NOT EXISTS ll_dispatch_pallet_lock (
+  id BIGINT NOT NULL COMMENT 'Snowflake ID', tenant_id VARCHAR(128) NOT NULL,
+  source_pallet_key VARCHAR(160) NOT NULL, active_key VARCHAR(160) NULL,
+  plan_id BIGINT NULL, plan_pallet_id BIGINT NULL, warehouse_pallet_id BIGINT NULL,
+  dispatch_order_id BIGINT NOT NULL, status VARCHAR(32) NOT NULL DEFAULT 'ACTIVE',
+  locked_at DATETIME(3) NOT NULL, released_at DATETIME(3) NULL,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id), UNIQUE KEY uk_ll_dispatch_active_pallet (tenant_id,active_key),
+  KEY idx_ll_dispatch_pallet_lock_order (tenant_id,dispatch_order_id,status),
+  KEY idx_ll_dispatch_pallet_lock_source (tenant_id,source_pallet_key,status)
+) ENGINE=InnoDB COMMENT='Active dispatch pallet exclusion lock';
+
+-- ============================================================================
+-- 2026-08-17 / 011
+-- Dispatch PDA task and immutable pallet pick operations
+-- ============================================================================
+
+USE baiyue_lastleg;
+
+CREATE TABLE IF NOT EXISTS ll_dispatch_pda_task (
+  id BIGINT NOT NULL, tenant_id VARCHAR(128) NOT NULL, dispatch_order_id BIGINT NOT NULL,
+  task_no VARCHAR(64) NOT NULL, status VARCHAR(32) NOT NULL, operator_id VARCHAR(128) NULL,
+  operator_name VARCHAR(128) NULL, pushed_at DATETIME(3) NOT NULL, completed_at DATETIME(3) NULL,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id), UNIQUE KEY uk_ll_dispatch_pda_task_dispatch (tenant_id,dispatch_order_id),
+  UNIQUE KEY uk_ll_dispatch_pda_task_no (tenant_id,task_no)
+) ENGINE=InnoDB COMMENT='PDA task for a pre-arranged dispatch';
+
+CREATE TABLE IF NOT EXISTS ll_dispatch_pda_pick (
+  id BIGINT NOT NULL, tenant_id VARCHAR(128) NOT NULL, task_id BIGINT NOT NULL,
+  dispatch_item_id BIGINT NOT NULL, inventory_position_id BIGINT NOT NULL,
+  packages BIGINT NOT NULL, product_quantity BIGINT NOT NULL DEFAULT 0, idempotency_key VARCHAR(255) NOT NULL,
+  picked_at DATETIME(3) NOT NULL, created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id), UNIQUE KEY uk_ll_dispatch_pda_pick_key (tenant_id,idempotency_key),
+  KEY idx_ll_dispatch_pda_pick_item (tenant_id,task_id,dispatch_item_id)
+) ENGINE=InnoDB COMMENT='Immutable dispatch PDA pallet package picks';
+
+CREATE TABLE IF NOT EXISTS ll_dispatch_pda_operation (
+  id BIGINT NOT NULL, tenant_id VARCHAR(128) NOT NULL, task_id BIGINT NULL,
+  operation_type VARCHAR(32) NOT NULL, idempotency_key VARCHAR(255) NOT NULL, request_hash CHAR(64) NOT NULL,
+  result_json LONGTEXT NULL, status VARCHAR(32) NOT NULL,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (id), UNIQUE KEY uk_ll_dispatch_pda_operation_key (tenant_id,idempotency_key)
+) ENGINE=InnoDB COMMENT='Idempotent dispatch PDA operations';
+
+-- ============================================================================
+-- 2026-08-17 / 012
+-- Preserve all tail-leg orders included in one merged dispatch pallet
+-- ============================================================================
+
+USE baiyue_lastleg;
+
+SET @ddl = (SELECT IF(EXISTS (SELECT 1 FROM information_schema.columns WHERE table_schema=DATABASE() AND table_name='ll_dispatch_item' AND column_name='order_refs'), 'SELECT 1', 'ALTER TABLE ll_dispatch_item ADD COLUMN order_refs VARCHAR(2000) NULL AFTER order_no'));
+PREPARE migration_stmt FROM @ddl; EXECUTE migration_stmt; DEALLOCATE PREPARE migration_stmt;

warehouse/src/main/java/com/baiyue/warehouse/controller/InternalWarehouseResourceLockController.java

@@ -3,8 +3,11 @@ package com.baiyue.warehouse.controller;
 import com.baiyue.common.core.api.ApiResponse;
 import com.baiyue.warehouse.dto.WarehouseResourceLockRequests;
 import com.baiyue.warehouse.dto.WarehouseResourceLockResponse;
+import com.baiyue.warehouse.dto.WarehousePalletScrapResponse;
+import com.baiyue.warehouse.entity.WarehouseLocationEntity;
 import com.baiyue.warehouse.security.InternalServiceTokenGuard;
 import com.baiyue.warehouse.service.WarehouseResourceLockService;
+import com.baiyue.warehouse.service.WarehouseResourceService;
 import jakarta.validation.Valid;
 import jakarta.annotation.Resource;
 import org.springframework.web.bind.annotation.PathVariable;
@@ -18,6 +21,7 @@ import org.springframework.web.bind.annotation.RestController;
 @RequestMapping("/internal/v1/warehouse-resource-locks")
 public class InternalWarehouseResourceLockController {
     @Resource private WarehouseResourceLockService service;
+    @Resource private WarehouseResourceService resourceService;
     @Resource private InternalServiceTokenGuard tokenGuard;
 
     @PostMapping
@@ -45,4 +49,22 @@ public class InternalWarehouseResourceLockController {
         tokenGuard.verify(token);
         return ApiResponse.success(service.scrap(request.tenantId(), lockId));
     }
+
+    @PostMapping("/pallets/{palletId}/scrap")
+    public ApiResponse<WarehousePalletScrapResponse> scrapPallet(
+        @RequestHeader(value = "X-Internal-Service-Token", required = false) String token,
+        @PathVariable long palletId,
+        @Valid @RequestBody WarehouseResourceLockRequests.CloseRequest request) {
+        tokenGuard.verify(token);
+        return ApiResponse.success(service.scrapByPallet(request.tenantId(), palletId));
+    }
+
+    @PostMapping("/default-locations/ensure")
+    public ApiResponse<WarehouseLocationEntity> ensureDefaultLocation(
+        @RequestHeader(value = "X-Internal-Service-Token", required = false) String token,
+        @Valid @RequestBody WarehouseResourceLockRequests.DefaultLocationRequest request) {
+        tokenGuard.verify(token);
+        return ApiResponse.success(resourceService.ensureDefaultVirtualLocation(
+            request.tenantId(), request.warehouseId()));
+    }
 }

warehouse/src/main/java/com/baiyue/warehouse/dto/PalletRequests.java

@@ -16,7 +16,7 @@ public final class PalletRequests {
     }
 
     public record SaveRequest(
-        @NotBlank @Size(max = 64) String palletCode,
+        @Size(max = 128) String palletCode,
         @NotBlank @Size(max = 32) String palletType,
         @DecimalMin(value = "0.0000", inclusive = false) BigDecimal capacityCbm,
         @NotNull @DecimalMin("0.00") BigDecimal unitPrice,

warehouse/src/main/java/com/baiyue/warehouse/dto/WarehousePalletScrapResponse.java

@@ -0,0 +1,4 @@
+package com.baiyue.warehouse.dto;
+
+public record WarehousePalletScrapResponse(long palletId, long warehouseId, Long locationId, String status) {
+}

warehouse/src/main/java/com/baiyue/warehouse/dto/WarehouseResourceLockRequests.java

@@ -17,4 +17,9 @@ public final class WarehouseResourceLockRequests {
     ) {}
 
     public record CloseRequest(@Positive long tenantId) {}
+
+    public record DefaultLocationRequest(
+        @Positive long tenantId,
+        @Positive long warehouseId
+    ) {}
 }

warehouse/src/main/java/com/baiyue/warehouse/mapper/WarehouseLocationMapper.java

@@ -2,6 +2,21 @@ package com.baiyue.warehouse.mapper;
 
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import com.baiyue.warehouse.entity.WarehouseLocationEntity;
+import org.apache.ibatis.annotations.Insert;
+import org.apache.ibatis.annotations.Param;
 
 public interface WarehouseLocationMapper extends BaseMapper<WarehouseLocationEntity> {
+    /**
+     * The unique location-code index makes this safe for concurrent first use of an older warehouse.
+     */
+    @Insert("""
+        INSERT IGNORE INTO wh_location
+          (id, tenant_id, warehouse_id, zone_code, location_code, location_type,
+           max_load_kg, status, remark, deleted, version)
+        VALUES
+          (#{location.id}, #{location.tenantId}, #{location.warehouseId}, #{location.zoneCode},
+           #{location.locationCode}, #{location.locationType}, #{location.maxLoadKg},
+           #{location.status}, #{location.remark}, 0, 0)
+        """)
+    int insertDefaultVirtualLocationIgnore(@Param("location") WarehouseLocationEntity location);
 }

warehouse/src/main/java/com/baiyue/warehouse/mapper/WarehouseResourceLockMapper.java

@@ -15,6 +15,11 @@ public interface WarehouseResourceLockMapper extends BaseMapper<WarehouseResourc
     WarehouseResourceLockEntity findByReservationKey(@Param("tenantId") long tenantId,
                                                        @Param("reservationKey") String reservationKey);
 
+    @Select("SELECT * FROM wh_resource_lock WHERE tenant_id=#{tenantId} AND pallet_id=#{palletId} " +
+        "AND status='ACTIVE' ORDER BY locked_at DESC LIMIT 1")
+    WarehouseResourceLockEntity findActiveByPallet(@Param("tenantId") long tenantId,
+                                                    @Param("palletId") long palletId);
+
     @Update("""
         UPDATE wh_pallet
         SET status = 'OCCUPIED', location_id = #{locationId}, updated_at = CURRENT_TIMESTAMP(3), version = version + 1
@@ -42,6 +47,17 @@ public interface WarehouseResourceLockMapper extends BaseMapper<WarehouseResourc
     int releasePallet(@Param("tenantId") long tenantId, @Param("warehouseId") long warehouseId,
                       @Param("palletId") long palletId, @Param("locationId") long locationId);
 
+    @Update("""
+        UPDATE wh_pallet
+        SET status = 'IDLE', updated_at = CURRENT_TIMESTAMP(3), version = version + 1
+        WHERE id = #{palletId} AND tenant_id = #{tenantId} AND warehouse_id = #{warehouseId}
+          AND location_id = #{locationId} AND status = 'OCCUPIED' AND deleted = 0
+        """)
+    int releasePalletAtVirtualLocation(@Param("tenantId") long tenantId,
+                                       @Param("warehouseId") long warehouseId,
+                                       @Param("palletId") long palletId,
+                                       @Param("locationId") long locationId);
+
     @Update("""
         UPDATE wh_location
         SET status = 'IDLE', updated_at = CURRENT_TIMESTAMP(3), version = version + 1
@@ -60,6 +76,21 @@ public interface WarehouseResourceLockMapper extends BaseMapper<WarehouseResourc
     int scrapPallet(@Param("tenantId") long tenantId, @Param("warehouseId") long warehouseId,
                     @Param("palletId") long palletId, @Param("locationId") long locationId);
 
+    @Update("""
+        UPDATE wh_pallet
+        SET status = 'SCRAPPED', updated_at = CURRENT_TIMESTAMP(3), version = version + 1
+        WHERE id = #{palletId} AND tenant_id = #{tenantId} AND warehouse_id = #{warehouseId}
+          AND location_id = #{locationId} AND status = 'OCCUPIED' AND deleted = 0
+        """)
+    int scrapPalletAtVirtualLocation(@Param("tenantId") long tenantId,
+                                     @Param("warehouseId") long warehouseId,
+                                     @Param("palletId") long palletId,
+                                     @Param("locationId") long locationId);
+
+    @Update("UPDATE wh_pallet SET status='SCRAPPED',updated_at=CURRENT_TIMESTAMP(3),version=version+1 " +
+        "WHERE tenant_id=#{tenantId} AND id=#{palletId} AND status='OCCUPIED' AND deleted=0")
+    int scrapPalletWithoutLock(@Param("tenantId") long tenantId, @Param("palletId") long palletId);
+
     @Update("""
         UPDATE wh_resource_lock
         SET status = #{status}, released_at = CURRENT_TIMESTAMP(3), updated_at = CURRENT_TIMESTAMP(3)

warehouse/src/main/java/com/baiyue/warehouse/repository/WarehouseRepository.java

@@ -7,9 +7,11 @@ import com.baiyue.warehouse.dto.WarehouseRequests;
 import com.baiyue.warehouse.entity.ServiceCapabilityEntity;
 import com.baiyue.warehouse.entity.WarehouseAddressEntity;
 import com.baiyue.warehouse.entity.WarehouseEntity;
+import com.baiyue.warehouse.entity.WarehouseLocationEntity;
 import com.baiyue.warehouse.mapper.ServiceCapabilityMapper;
 import com.baiyue.warehouse.mapper.WarehouseAddressMapper;
 import com.baiyue.warehouse.mapper.WarehouseMapper;
+import com.baiyue.warehouse.mapper.WarehouseLocationMapper;
 import org.springframework.stereotype.Repository;
 import org.springframework.util.StringUtils;
 import jakarta.annotation.Resource;
@@ -22,6 +24,7 @@ import java.util.List;
 @Repository
 public class WarehouseRepository {
     @Resource private WarehouseMapper warehouses;
+    @Resource private WarehouseLocationMapper locations;
     @Resource private WarehouseAddressMapper addresses;
     @Resource private ServiceCapabilityMapper capabilities;
 
@@ -29,6 +32,17 @@ public class WarehouseRepository {
         warehouses.insert(warehouse);
     }
 
+    public void insertLocation(WarehouseLocationEntity location) {
+        locations.insert(location);
+    }
+
+    public boolean existsLocationCode(long tenantId, long warehouseId, String locationCode) {
+        return locations.selectCount(new LambdaQueryWrapper<WarehouseLocationEntity>()
+            .eq(WarehouseLocationEntity::getTenantId, tenantId)
+            .eq(WarehouseLocationEntity::getWarehouseId, warehouseId)
+            .eq(WarehouseLocationEntity::getLocationCode, locationCode)) > 0;
+    }
+
     public void saveWarehouse(WarehouseEntity warehouse) {
         warehouses.updateById(warehouse);
     }

warehouse/src/main/java/com/baiyue/warehouse/repository/WarehouseResourceLockRepository.java

@@ -26,6 +26,16 @@ public class WarehouseResourceLockRepository {
             .eq(WarehouseResourceLockEntity::getId, lockId));
     }
 
+    public WarehouseResourceLockEntity findActiveByPallet(long tenantId, long palletId) {
+        return locks.findActiveByPallet(tenantId, palletId);
+    }
+
+    public WarehousePalletEntity findPallet(long tenantId, long palletId) {
+        return pallets.selectOne(new LambdaQueryWrapper<WarehousePalletEntity>()
+            .eq(WarehousePalletEntity::getTenantId, tenantId)
+            .eq(WarehousePalletEntity::getId, palletId));
+    }
+
     public WarehousePalletEntity findPallet(long tenantId, long warehouseId, long palletId) {
         return pallets.selectOne(new LambdaQueryWrapper<WarehousePalletEntity>()
             .eq(WarehousePalletEntity::getTenantId, tenantId)
@@ -54,10 +64,24 @@ public class WarehouseResourceLockRepository {
         return locks.releasePallet(lock.getTenantId(), lock.getWarehouseId(), lock.getPalletId(), lock.getLocationId());
     }
 
+    public int releasePalletAtVirtualLocation(WarehouseResourceLockEntity lock) {
+        return locks.releasePalletAtVirtualLocation(lock.getTenantId(), lock.getWarehouseId(),
+            lock.getPalletId(), lock.getLocationId());
+    }
+
     public int scrapPallet(WarehouseResourceLockEntity lock) {
         return locks.scrapPallet(lock.getTenantId(), lock.getWarehouseId(), lock.getPalletId(), lock.getLocationId());
     }
 
+    public int scrapPalletWithoutLock(long tenantId, long palletId) {
+        return locks.scrapPalletWithoutLock(tenantId, palletId);
+    }
+
+    public int scrapPalletAtVirtualLocation(WarehouseResourceLockEntity lock) {
+        return locks.scrapPalletAtVirtualLocation(lock.getTenantId(), lock.getWarehouseId(),
+            lock.getPalletId(), lock.getLocationId());
+    }
+
     public int releaseLocation(WarehouseResourceLockEntity lock) {
         return locks.releaseLocation(lock.getTenantId(), lock.getWarehouseId(), lock.getLocationId());
     }

warehouse/src/main/java/com/baiyue/warehouse/repository/WarehouseResourceRepository.java

@@ -27,10 +27,37 @@ public class WarehouseResourceRepository {
             .eq(WarehouseEntity::getId, warehouseId)) > 0;
     }
 
+    public WarehouseEntity findWarehouse(long tenantId, long warehouseId) {
+        return warehouses.selectOne(new LambdaQueryWrapper<WarehouseEntity>()
+            .eq(WarehouseEntity::getTenantId, tenantId)
+            .eq(WarehouseEntity::getId, warehouseId));
+    }
+
+    public WarehouseLocationEntity findDefaultVirtualLocation(long tenantId, long warehouseId) {
+        return locations.selectOne(new LambdaQueryWrapper<WarehouseLocationEntity>()
+            .eq(WarehouseLocationEntity::getTenantId, tenantId)
+            .eq(WarehouseLocationEntity::getWarehouseId, warehouseId)
+            .eq(WarehouseLocationEntity::getLocationType, "VIRTUAL")
+            .eq(WarehouseLocationEntity::getStatus, "ACTIVE")
+            .orderByAsc(WarehouseLocationEntity::getCreatedAt)
+            .last("LIMIT 1"));
+    }
+
+    public WarehouseLocationEntity findLocationByCode(long tenantId, long warehouseId, String locationCode) {
+        return locations.selectOne(new LambdaQueryWrapper<WarehouseLocationEntity>()
+            .eq(WarehouseLocationEntity::getTenantId, tenantId)
+            .eq(WarehouseLocationEntity::getWarehouseId, warehouseId)
+            .eq(WarehouseLocationEntity::getLocationCode, locationCode));
+    }
+
     public void insertLocation(WarehouseLocationEntity entity) {
         locations.insert(entity);
     }
 
+    public int insertDefaultVirtualLocationIgnore(WarehouseLocationEntity entity) {
+        return locations.insertDefaultVirtualLocationIgnore(entity);
+    }
+
     public void updateLocation(WarehouseLocationEntity entity) {
         locations.updateById(entity);
     }

warehouse/src/main/java/com/baiyue/warehouse/service/WarehouseApplicationService.java

@@ -10,11 +10,13 @@ import com.baiyue.warehouse.dto.WarehouseRequests;
 import com.baiyue.warehouse.entity.ServiceCapabilityEntity;
 import com.baiyue.warehouse.entity.WarehouseAddressEntity;
 import com.baiyue.warehouse.entity.WarehouseEntity;
+import com.baiyue.warehouse.entity.WarehouseLocationEntity;
 import com.baiyue.warehouse.repository.WarehouseRepository;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 import java.util.List;
+import java.math.BigDecimal;
 
 /**
  * 仓库应用服务，负责仓库主数据、地址和服务能力的租户级用例编排、事务控制与业务校验。
@@ -37,10 +39,28 @@ public class WarehouseApplicationService {
         ensureCodeUnique(request.tenantId(), request.warehouseCode(), null);
         WarehouseEntity warehouse = toEntity(request);
         repository.insertWarehouse(warehouse);
+        ensureDefaultVirtualLocation(warehouse);
         insertChildren(warehouse.getTenantId(), warehouse.getId(), request.address(), request.capabilities());
         return warehouse.getId();
     }
 
+    private void ensureDefaultVirtualLocation(WarehouseEntity warehouse) {
+        String locationCode = "LOC-" + warehouse.getWarehouseCode() + "-DEFAULT";
+        if (repository.existsLocationCode(warehouse.getTenantId(), warehouse.getId(), locationCode)) {
+            return;
+        }
+        WarehouseLocationEntity location = new WarehouseLocationEntity();
+        location.setTenantId(warehouse.getTenantId());
+        location.setWarehouseId(warehouse.getId());
+        location.setZoneCode("DEFAULT");
+        location.setLocationCode(locationCode);
+        location.setLocationType("VIRTUAL");
+        location.setMaxLoadKg(new BigDecimal("999999999.000"));
+        location.setStatus("ACTIVE");
+        location.setRemark("System default virtual location");
+        repository.insertLocation(location);
+    }
+
     @Transactional
     @BusinessAudit(
         event = "WAREHOUSE_UPDATE",

warehouse/src/main/java/com/baiyue/warehouse/service/WarehouseResourceLockService.java

@@ -4,6 +4,7 @@ import com.baiyue.common.core.api.ResultCode;
 import com.baiyue.common.core.exception.BizException;
 import com.baiyue.warehouse.dto.WarehouseResourceLockRequests;
 import com.baiyue.warehouse.dto.WarehouseResourceLockResponse;
+import com.baiyue.warehouse.dto.WarehousePalletScrapResponse;
 import com.baiyue.warehouse.entity.WarehouseLocationEntity;
 import com.baiyue.warehouse.entity.WarehousePalletEntity;
 import com.baiyue.warehouse.entity.WarehouseResourceLockEntity;
@@ -33,7 +34,9 @@ public class WarehouseResourceLockService {
             if (concurrent != null) return idempotentResult(concurrent, request);
             throw new BizException(ResultCode.NOT_FOUND, "Pallet or location does not belong to the tenant warehouse");
         }
-        if (!"IDLE".equals(pallet.getStatus()) || !"IDLE".equals(location.getStatus())) {
+        boolean virtualLocation = isVirtual(location);
+        boolean locationAvailable = virtualLocation ? "ACTIVE".equals(location.getStatus()) : "IDLE".equals(location.getStatus());
+        if (!"IDLE".equals(pallet.getStatus()) || !locationAvailable) {
             WarehouseResourceLockEntity concurrent =
                 repository.findByReservationKey(request.tenantId(), request.reservationKey());
             if (concurrent != null) return idempotentResult(concurrent, request);
@@ -42,7 +45,7 @@ public class WarehouseResourceLockService {
         if (repository.occupyPallet(request.tenantId(), request.warehouseId(), request.palletId(), request.locationId()) != 1) {
             return concurrentIdempotentOrConflict(request);
         }
-        if (repository.occupyLocation(request.tenantId(), request.warehouseId(), request.locationId()) != 1) {
+        if (!virtualLocation && repository.occupyLocation(request.tenantId(), request.warehouseId(), request.locationId()) != 1) {
             throw new BizException(ResultCode.CONFLICT, "Location is no longer IDLE");
         }
 
@@ -65,7 +68,9 @@ public class WarehouseResourceLockService {
         WarehouseResourceLockEntity lock = requireLock(tenantId, lockId);
         if ("RELEASED".equals(lock.getStatus())) return WarehouseResourceLockResponse.from(lock);
         requireActive(lock);
-        if (repository.releasePallet(lock) != 1 || repository.releaseLocation(lock) != 1
+        boolean virtualLocation = isVirtualLockLocation(lock);
+        int palletResult = virtualLocation ? repository.releasePalletAtVirtualLocation(lock) : repository.releasePallet(lock);
+        if (palletResult != 1 || (!virtualLocation && repository.releaseLocation(lock) != 1)
             || repository.close(lock, "RELEASED") != 1) {
             throw new BizException(ResultCode.CONFLICT, "Resource lock state changed concurrently");
         }
@@ -79,7 +84,9 @@ public class WarehouseResourceLockService {
         WarehouseResourceLockEntity lock = requireLock(tenantId, lockId);
         if ("SCRAPPED".equals(lock.getStatus())) return WarehouseResourceLockResponse.from(lock);
         requireActive(lock);
-        if (repository.scrapPallet(lock) != 1 || repository.releaseLocation(lock) != 1
+        boolean virtualLocation = isVirtualLockLocation(lock);
+        int palletResult = virtualLocation ? repository.scrapPalletAtVirtualLocation(lock) : repository.scrapPallet(lock);
+        if (palletResult != 1 || (!virtualLocation && repository.releaseLocation(lock) != 1)
             || repository.close(lock, "SCRAPPED") != 1) {
             throw new BizException(ResultCode.CONFLICT, "Resource lock state changed concurrently");
         }
@@ -88,6 +95,25 @@ public class WarehouseResourceLockService {
         return WarehouseResourceLockResponse.from(lock);
     }
 
+    @Transactional
+    public WarehousePalletScrapResponse scrapByPallet(long tenantId, long palletId) {
+        WarehousePalletEntity pallet = repository.findPallet(tenantId, palletId);
+        if (pallet == null) throw new BizException(ResultCode.NOT_FOUND, "Pallet not found");
+        if ("SCRAPPED".equals(pallet.getStatus())) {
+            return new WarehousePalletScrapResponse(palletId, pallet.getWarehouseId(), pallet.getLocationId(), "SCRAPPED");
+        }
+        if (!"OCCUPIED".equals(pallet.getStatus())) {
+            throw new BizException(ResultCode.CONFLICT, "Only an OCCUPIED pallet can be scrapped after shipment");
+        }
+        WarehouseResourceLockEntity lock = repository.findActiveByPallet(tenantId, palletId);
+        if (lock != null) {
+            scrap(tenantId, lock.getId());
+        } else if (repository.scrapPalletWithoutLock(tenantId, palletId) != 1) {
+            throw new BizException(ResultCode.CONFLICT, "Pallet state changed concurrently");
+        }
+        return new WarehousePalletScrapResponse(palletId, pallet.getWarehouseId(), pallet.getLocationId(), "SCRAPPED");
+    }
+
     private WarehouseResourceLockResponse concurrentIdempotentOrConflict(
         WarehouseResourceLockRequests.ReserveRequest request) {
         WarehouseResourceLockEntity existing = repository.findByReservationKey(request.tenantId(), request.reservationKey());
@@ -118,4 +144,15 @@ public class WarehouseResourceLockService {
             throw new BizException(ResultCode.CONFLICT, "Resource lock is not ACTIVE");
         }
     }
+
+
+    private boolean isVirtualLockLocation(WarehouseResourceLockEntity lock) {
+        WarehouseLocationEntity location = repository.findLocation(lock.getTenantId(), lock.getWarehouseId(), lock.getLocationId());
+        if (location == null) throw new BizException(ResultCode.NOT_FOUND, "Resource lock location not found");
+        return isVirtual(location);
+    }
+
+    private static boolean isVirtual(WarehouseLocationEntity location) {
+        return "VIRTUAL".equals(location.getLocationType());
+    }
 }

warehouse/src/main/java/com/baiyue/warehouse/service/WarehouseResourceService.java

@@ -7,12 +7,17 @@ import com.baiyue.warehouse.dto.LocationRequests;
 import com.baiyue.warehouse.dto.PalletRequests;
 import com.baiyue.warehouse.entity.WarehouseLocationEntity;
 import com.baiyue.warehouse.entity.WarehousePalletEntity;
+import com.baiyue.warehouse.entity.WarehouseEntity;
 import com.baiyue.warehouse.repository.WarehouseResourceRepository;
+import com.baomidou.mybatisplus.core.toolkit.IdWorker;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import jakarta.annotation.Resource;
 
 import java.util.Set;
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+import org.springframework.util.StringUtils;
 
 @Service
 public class WarehouseResourceService {
@@ -33,6 +38,11 @@ public class WarehouseResourceService {
     @Transactional
     public void updateLocation(long tenantId, long warehouseId, long id, LocationRequests.SaveRequest request) {
         WarehouseLocationEntity existing = requireLocation(tenantId, warehouseId, id);
+        if ("VIRTUAL".equals(existing.getLocationType())
+            && (!"VIRTUAL".equals(request.locationType()) || !"ACTIVE".equals(request.status())
+                || !existing.getLocationCode().equals(request.locationCode()))) {
+            throw new BizException(ResultCode.CONFLICT, "Default virtual location must remain VIRTUAL and ACTIVE");
+        }
         validateLocation(request, tenantId, warehouseId, id);
         WarehouseLocationEntity entity = locationEntity(tenantId, warehouseId, request);
         entity.setId(existing.getId());
@@ -52,7 +62,10 @@ public class WarehouseResourceService {
 
     @Transactional
     public void deleteLocation(long tenantId, long warehouseId, long id) {
-        requireLocation(tenantId, warehouseId, id);
+        WarehouseLocationEntity location = requireLocation(tenantId, warehouseId, id);
+        if ("VIRTUAL".equals(location.getLocationType())) {
+            throw new BizException(ResultCode.CONFLICT, "Default virtual location cannot be deleted");
+        }
         if (repository.locationHasPallets(tenantId, warehouseId, id)) {
             throw new BizException(ResultCode.CONFLICT, "库位仍绑定托盘，不能删除");
         }
@@ -61,18 +74,69 @@ public class WarehouseResourceService {
 
     @Transactional
     public Long createPallet(long tenantId, long warehouseId, PalletRequests.SaveRequest request) {
-        requireWarehouse(tenantId, warehouseId);
-        validatePallet(request, tenantId, warehouseId, null);
-        WarehousePalletEntity entity = palletEntity(tenantId, warehouseId, request);
+        WarehouseEntity warehouse = requireWarehouseEntity(tenantId, warehouseId);
+        validatePalletStatus(request.status());
+        Long palletId = IdWorker.getId();
+        String palletCode = StringUtils.hasText(request.palletCode()) ? request.palletCode().trim()
+            : generatedPalletCode(warehouse.getWarehouseCode(), palletId);
+        Long locationId = request.locationId();
+        if (locationId == null) {
+            locationId = ensureDefaultVirtualLocation(tenantId, warehouseId).getId();
+        }
+        validatePallet(request, palletCode, locationId, tenantId, warehouseId, null);
+        WarehousePalletEntity entity = palletEntity(tenantId, warehouseId, request, palletCode, locationId);
+        entity.setId(palletId);
         repository.insertPallet(entity);
         return entity.getId();
     }
 
+    /**
+     * Returns the warehouse-scoped virtual location used only as a pallet/inventory reference.
+     * It is deliberately never made IDLE/OCCUPIED by resource locking.
+     */
+    @Transactional
+    public WarehouseLocationEntity ensureDefaultVirtualLocation(long tenantId, long warehouseId) {
+        WarehouseEntity warehouse = requireWarehouseEntity(tenantId, warehouseId);
+        String locationCode = defaultLocationCode(warehouse.getWarehouseCode());
+        WarehouseLocationEntity existing = repository.findLocationByCode(tenantId, warehouseId, locationCode);
+        if (existing != null) {
+            if (!"VIRTUAL".equals(existing.getLocationType()) || !"ACTIVE".equals(existing.getStatus())) {
+                throw new BizException(ResultCode.CONFLICT,
+                    "Default virtual location code is occupied by a non-active virtual location");
+            }
+            return existing;
+        }
+
+        WarehouseLocationEntity location = new WarehouseLocationEntity();
+        location.setId(IdWorker.getId());
+        location.setTenantId(tenantId);
+        location.setWarehouseId(warehouseId);
+        location.setZoneCode("DEFAULT");
+        location.setLocationCode(locationCode);
+        location.setLocationType("VIRTUAL");
+        location.setMaxLoadKg(new java.math.BigDecimal("999999999.000"));
+        location.setStatus("ACTIVE");
+        location.setRemark("System default virtual location");
+        repository.insertDefaultVirtualLocationIgnore(location);
+
+        WarehouseLocationEntity resolved = repository.findLocationByCode(tenantId, warehouseId, locationCode);
+        if (resolved == null) {
+            throw new BizException(ResultCode.CONFLICT, "Default virtual location could not be created");
+        }
+        return resolved;
+    }
+
     @Transactional
     public void updatePallet(long tenantId, long warehouseId, long id, PalletRequests.SaveRequest request) {
         WarehousePalletEntity existing = requirePallet(tenantId, warehouseId, id);
-        validatePallet(request, tenantId, warehouseId, id);
-        WarehousePalletEntity entity = palletEntity(tenantId, warehouseId, request);
+        if ("SCRAPPED".equals(existing.getStatus()) && !"SCRAPPED".equals(request.status())) {
+            throw new BizException(ResultCode.CONFLICT, "SCRAPPED pallet cannot be reused");
+        }
+        String palletCode = StringUtils.hasText(request.palletCode()) ? request.palletCode().trim()
+            : existing.getPalletCode();
+        Long locationId = request.locationId() == null ? existing.getLocationId() : request.locationId();
+        validatePallet(request, palletCode, locationId, tenantId, warehouseId, id);
+        WarehousePalletEntity entity = palletEntity(tenantId, warehouseId, request, palletCode, locationId);
         entity.setId(existing.getId());
         repository.updatePallet(entity);
     }
@@ -94,6 +158,9 @@ public class WarehouseResourceService {
         if ("OCCUPIED".equals(pallet.getStatus())) {
             throw new BizException(ResultCode.CONFLICT, "占用中的托盘不能删除");
         }
+        if ("SCRAPPED".equals(pallet.getStatus())) {
+            throw new BizException(ResultCode.CONFLICT, "Scrapped pallet must be retained and cannot be reused");
+        }
         repository.deletePallet(id);
     }
 
@@ -103,6 +170,14 @@ public class WarehouseResourceService {
         }
     }
 
+    private WarehouseEntity requireWarehouseEntity(long tenantId, long warehouseId) {
+        WarehouseEntity warehouse = repository.findWarehouse(tenantId, warehouseId);
+        if (warehouse == null) {
+            throw new BizException(ResultCode.NOT_FOUND, "Tenant warehouse not found");
+        }
+        return warehouse;
+    }
+
     private WarehouseLocationEntity requireLocation(long tenantId, long warehouseId, long id) {
         requireWarehouse(tenantId, warehouseId);
         WarehouseLocationEntity entity = repository.findLocation(tenantId, warehouseId, id);
@@ -127,16 +202,20 @@ public class WarehouseResourceService {
         }
     }
 
-    private void validatePallet(PalletRequests.SaveRequest request, long tenantId,
-                                long warehouseId, Long excludedId) {
-        if (!PALLET_STATUSES.contains(request.status())) {
-            throw new BizException("托盘状态仅支持 IDLE、OCCUPIED、SCRAPPED");
-        }
-        if (repository.palletCodeExists(tenantId, warehouseId, request.palletCode(), excludedId)) {
+    private void validatePallet(PalletRequests.SaveRequest request, String palletCode, Long locationId,
+                                long tenantId, long warehouseId, Long excludedId) {
+        validatePalletStatus(request.status());
+        if (repository.palletCodeExists(tenantId, warehouseId, palletCode, excludedId)) {
             throw new BizException(ResultCode.CONFLICT, "当前仓库下托盘编码已存在");
         }
-        if (request.locationId() != null) {
-            requireLocation(tenantId, warehouseId, request.locationId());
+        if (locationId != null) {
+            requireLocation(tenantId, warehouseId, locationId);
+        }
+    }
+
+    private void validatePalletStatus(String status) {
+        if (!PALLET_STATUSES.contains(status)) {
+            throw new BizException("托盘状态仅支持 IDLE、OCCUPIED、SCRAPPED");
         }
     }
 
@@ -155,12 +234,13 @@ public class WarehouseResourceService {
     }
 
     private WarehousePalletEntity palletEntity(long tenantId, long warehouseId,
-                                                 PalletRequests.SaveRequest request) {
+                                                 PalletRequests.SaveRequest request,
+                                                 String palletCode, Long locationId) {
         WarehousePalletEntity entity = new WarehousePalletEntity();
         entity.setTenantId(tenantId);
         entity.setWarehouseId(warehouseId);
-        entity.setLocationId(request.locationId());
-        entity.setPalletCode(request.palletCode());
+        entity.setLocationId(locationId);
+        entity.setPalletCode(palletCode);
         entity.setPalletType(request.palletType());
         entity.setCapacityCbm(request.capacityCbm());
         entity.setUnitPrice(request.unitPrice());
@@ -168,4 +248,13 @@ public class WarehouseResourceService {
         entity.setRemark(request.remark());
         return entity;
     }
+
+    private static String generatedPalletCode(String warehouseCode, long palletId) {
+        return "PLT-" + warehouseCode + "-" + LocalDate.now().format(DateTimeFormatter.BASIC_ISO_DATE)
+            + "-" + Long.toUnsignedString(palletId);
+    }
+
+    private static String defaultLocationCode(String warehouseCode) {
+        return "LOC-" + warehouseCode + "-DEFAULT";
+    }
 }

warehouse/src/main/resources/db/warehouse.sql

@@ -29,7 +29,7 @@ CREATE TABLE IF NOT EXISTS wh_pallet (
   tenant_id BIGINT UNSIGNED NOT NULL COMMENT '数据所属租户ID',
   warehouse_id BIGINT UNSIGNED NOT NULL COMMENT '所属仓库ID',
   location_id BIGINT UNSIGNED DEFAULT NULL COMMENT '同仓库内绑定的库位ID，可为空',
-  pallet_code VARCHAR(64) NOT NULL COMMENT '仓库内唯一托盘编码',
+  pallet_code VARCHAR(128) NOT NULL COMMENT '仓库内唯一托盘编码',
   pallet_type VARCHAR(32) NOT NULL COMMENT '托盘类型',
   capacity_cbm DECIMAL(18,4) NOT NULL DEFAULT 2.0000 COMMENT '托盘容量（立方米）',
   unit_price DECIMAL(18,2) NOT NULL DEFAULT 0.00 COMMENT '托盘单价',
@@ -159,13 +159,25 @@ ALTER TABLE wh_location
   MODIFY COLUMN deleted TINYINT(1) NOT NULL DEFAULT 0 COMMENT '逻辑删除标记',
   MODIFY COLUMN version INT NOT NULL DEFAULT 0 COMMENT '乐观锁版本号';
 
+-- Every warehouse has one non-occupiable virtual location used for inventory history.
+INSERT INTO wh_location (id, tenant_id, warehouse_id, zone_code, location_code, location_type,
+                         max_load_kg, status, remark)
+SELECT UUID_SHORT(), w.tenant_id, w.id, 'DEFAULT', CONCAT('LOC-', w.warehouse_code, '-DEFAULT'),
+       'VIRTUAL', 999999999.000, 'ACTIVE', 'System default virtual location'
+FROM wh_warehouse w
+WHERE NOT EXISTS (
+    SELECT 1 FROM wh_location l
+    WHERE l.tenant_id = w.tenant_id AND l.warehouse_id = w.id
+      AND l.location_code = CONCAT('LOC-', w.warehouse_code, '-DEFAULT') AND l.deleted = 0
+);
+
 ALTER TABLE wh_pallet COMMENT='仓库托盘表：按租户和仓库维护托盘、容量、单价及状态';
 ALTER TABLE wh_pallet
   MODIFY COLUMN id BIGINT UNSIGNED NOT NULL COMMENT '托盘ID（雪花ID）',
   MODIFY COLUMN tenant_id BIGINT UNSIGNED NOT NULL COMMENT '数据所属租户ID',
   MODIFY COLUMN warehouse_id BIGINT UNSIGNED NOT NULL COMMENT '所属仓库ID',
   MODIFY COLUMN location_id BIGINT UNSIGNED NULL COMMENT '同仓库内绑定的库位ID，可为空',
-  MODIFY COLUMN pallet_code VARCHAR(64) NOT NULL COMMENT '仓库内唯一托盘编码',
+  MODIFY COLUMN pallet_code VARCHAR(128) NOT NULL COMMENT '仓库内唯一托盘编码',
   MODIFY COLUMN pallet_type VARCHAR(32) NOT NULL COMMENT '托盘类型',
   MODIFY COLUMN capacity_cbm DECIMAL(18,4) NOT NULL DEFAULT 2.0000 COMMENT '托盘容量（立方米）',
   MODIFY COLUMN unit_price DECIMAL(18,2) NOT NULL DEFAULT 0.00 COMMENT '托盘单价',

warehouse/src/test/java/com/baiyue/warehouse/service/WarehouseApplicationServiceTest.java

@@ -0,0 +1,59 @@
+package com.baiyue.warehouse.service;
+
+import com.baiyue.warehouse.dto.WarehouseRequests;
+import com.baiyue.warehouse.entity.WarehouseEntity;
+import com.baiyue.warehouse.entity.WarehouseLocationEntity;
+import com.baiyue.warehouse.repository.WarehouseRepository;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.test.util.ReflectionTestUtils;
+
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.doAnswer;
+import static org.mockito.Mockito.verify;
+
+@ExtendWith(MockitoExtension.class)
+class WarehouseApplicationServiceTest {
+    @Mock WarehouseRepository repository;
+    private WarehouseApplicationService service;
+
+    @BeforeEach
+    void setUp() {
+        service = new WarehouseApplicationService();
+        ReflectionTestUtils.setField(service, "repository", repository);
+    }
+
+    @Test
+    void warehouseCreationAlsoCreatesActiveDefaultVirtualLocation() {
+        doAnswer(call -> {
+            ((WarehouseEntity) call.getArgument(0)).setId(20001L);
+            return null;
+        }).when(repository).insertWarehouse(any());
+
+        service.create(request());
+
+        ArgumentCaptor<WarehouseLocationEntity> location = ArgumentCaptor.forClass(WarehouseLocationEntity.class);
+        verify(repository).insertLocation(location.capture());
+        assertThat(location.getValue().getTenantId()).isEqualTo(10001L);
+        assertThat(location.getValue().getWarehouseId()).isEqualTo(20001L);
+        assertThat(location.getValue().getLocationCode()).isEqualTo("LOC-US-LAX-01-DEFAULT");
+        assertThat(location.getValue().getLocationType()).isEqualTo("VIRTUAL");
+        assertThat(location.getValue().getStatus()).isEqualTo("ACTIVE");
+    }
+
+    private static WarehouseRequests.SaveRequest request() {
+        WarehouseRequests.AddressRequest address = new WarehouseRequests.AddressRequest(
+            "WAREHOUSE", "US", "CA", "Los Angeles", null, "90001",
+            "1 Logistics Ave", null, null, null);
+        return new WarehouseRequests.SaveRequest(10001L, "US-LAX-01", "LAX Warehouse",
+            "OVERSEAS", "US", "America/Los_Angeles", null, null, null,
+            "ACTIVE", null, address, List.of());
+    }
+}

warehouse/src/test/java/com/baiyue/warehouse/service/WarehouseResourceLockServiceTest.java

@@ -122,6 +122,7 @@ class WarehouseResourceLockServiceTest {
     void releaseRestoresBothResourcesAndClosesLock() {
         WarehouseResourceLockEntity lock = activeLock();
         when(repository.find(TENANT, lock.getId())).thenReturn(lock);
+        when(repository.findLocation(TENANT, WAREHOUSE, LOCATION)).thenReturn(location("OCCUPIED"));
         when(repository.releasePallet(lock)).thenReturn(1);
         when(repository.releaseLocation(lock)).thenReturn(1);
         when(repository.close(lock, "RELEASED")).thenReturn(1);
@@ -137,6 +138,7 @@ class WarehouseResourceLockServiceTest {
     void scrapDiscardsPalletAndReleasesLocation() {
         WarehouseResourceLockEntity lock = activeLock();
         when(repository.find(TENANT, lock.getId())).thenReturn(lock);
+        when(repository.findLocation(TENANT, WAREHOUSE, LOCATION)).thenReturn(location("OCCUPIED"));
         when(repository.scrapPallet(lock)).thenReturn(1);
         when(repository.releaseLocation(lock)).thenReturn(1);
         when(repository.close(lock, "SCRAPPED")).thenReturn(1);
@@ -161,6 +163,73 @@ class WarehouseResourceLockServiceTest {
         verify(repository, never()).insert(any());
     }
 
+    @Test
+    void virtualLocationIsNeverOccupiedOrReleased() {
+        WarehouseLocationEntity virtual = location("ACTIVE");
+        virtual.setLocationType("VIRTUAL");
+        when(repository.findPallet(TENANT, WAREHOUSE, PALLET)).thenReturn(pallet("IDLE"));
+        when(repository.findLocation(TENANT, WAREHOUSE, LOCATION)).thenReturn(virtual);
+        when(repository.occupyPallet(TENANT, WAREHOUSE, PALLET, LOCATION)).thenReturn(1);
+        doAnswer(call -> {
+            ((WarehouseResourceLockEntity) call.getArgument(0)).setId(502L);
+            return null;
+        }).when(repository).insert(any());
+
+        service.reserve(request("virtual-reserve"));
+
+        verify(repository, never()).occupyLocation(TENANT, WAREHOUSE, LOCATION);
+    }
+
+    @Test
+    void scrappingAtVirtualLocationKeepsLocationUntouched() {
+        WarehouseResourceLockEntity lock = activeLock();
+        WarehouseLocationEntity virtual = location("ACTIVE");
+        virtual.setLocationType("VIRTUAL");
+        when(repository.find(TENANT, lock.getId())).thenReturn(lock);
+        when(repository.findLocation(TENANT, WAREHOUSE, LOCATION)).thenReturn(virtual);
+        when(repository.scrapPalletAtVirtualLocation(lock)).thenReturn(1);
+        when(repository.close(lock, "SCRAPPED")).thenReturn(1);
+
+        var result = service.scrap(TENANT, lock.getId());
+
+        assertThat(result.status()).isEqualTo("SCRAPPED");
+        verify(repository).scrapPalletAtVirtualLocation(lock);
+        verify(repository, never()).releaseLocation(lock);
+    }
+
+    @Test
+    void scrapByPalletClosesItsActiveLockAndKeepsLocationReference() {
+        WarehousePalletEntity pallet = pallet("OCCUPIED");
+        pallet.setWarehouseId(WAREHOUSE);
+        pallet.setLocationId(LOCATION);
+        WarehouseResourceLockEntity lock = activeLock();
+        when(repository.findPallet(TENANT, PALLET)).thenReturn(pallet);
+        when(repository.findActiveByPallet(TENANT, PALLET)).thenReturn(lock);
+        when(repository.find(TENANT, lock.getId())).thenReturn(lock);
+        WarehouseLocationEntity virtual = location("ACTIVE");
+        virtual.setLocationType("VIRTUAL");
+        when(repository.findLocation(TENANT, WAREHOUSE, LOCATION)).thenReturn(virtual);
+        when(repository.scrapPalletAtVirtualLocation(lock)).thenReturn(1);
+        when(repository.close(lock, "SCRAPPED")).thenReturn(1);
+
+        var result = service.scrapByPallet(TENANT, PALLET);
+
+        assertThat(result.status()).isEqualTo("SCRAPPED");
+        assertThat(result.locationId()).isEqualTo(LOCATION);
+        verify(repository).scrapPalletAtVirtualLocation(lock);
+    }
+
+    @Test
+    void scrapByPalletIsIdempotentWhenAlreadyScrapped() {
+        WarehousePalletEntity pallet = pallet("SCRAPPED");
+        pallet.setWarehouseId(WAREHOUSE);
+        pallet.setLocationId(LOCATION);
+        when(repository.findPallet(TENANT, PALLET)).thenReturn(pallet);
+
+        assertThat(service.scrapByPallet(TENANT, PALLET).status()).isEqualTo("SCRAPPED");
+        verify(repository, never()).findActiveByPallet(TENANT, PALLET);
+    }
+
     private static WarehouseResourceLockRequests.ReserveRequest request(String key) {
         return new WarehouseResourceLockRequests.ReserveRequest(TENANT, WAREHOUSE, PALLET, LOCATION,
             "INBOUND_PLAN_PALLET", "plan-pallet-1", key);