diff --git a/deploy/sql/头程数据库统一增量-MySQL8.sql b/deploy/sql/头程数据库统一增量-MySQL8.sql
index 67d5f8c5d..670b44041 100644
--- a/deploy/sql/头程数据库统一增量-MySQL8.sql
+++ b/deploy/sql/头程数据库统一增量-MySQL8.sql
@@ -9918,19 +9918,19 @@ SET NAMES utf8mb4;
 USE baiyue_firstleg;
 
 CREATE TABLE IF NOT EXISTS fl_customs_container (
-  id BIGINT UNSIGNED NOT NULL,
+  id BIGINT UNSIGNED NOT NULL COMMENT '整柜报关聚合ID',
   loading_plan_id BIGINT UNSIGNED NOT NULL COMMENT '已完成装柜计划ID；报关柜级聚合唯一键',
   container_booking_id BIGINT UNSIGNED NOT NULL COMMENT '物理货柜ID',
-  status VARCHAR(40) NOT NULL COMMENT 'WAITING_CUSTOMER_DOCUMENTS、READY_TO_START、DECLARING、COMPLETED',
-  started_by BIGINT UNSIGNED NULL,
-  started_by_name VARCHAR(64) NULL,
-  started_at DATETIME(3) NULL,
-  completed_by BIGINT UNSIGNED NULL,
-  completed_by_name VARCHAR(64) 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),
-  version INT UNSIGNED NOT NULL DEFAULT 0,
+  status VARCHAR(40) NOT NULL COMMENT '报关状态：WAITING_CUSTOMER_DOCUMENTS待客户资料、READY_TO_START待开始、DECLARING报关中、COMPLETED已完成',
+  started_by BIGINT UNSIGNED NULL COMMENT '开始报关操作人ID',
+  started_by_name VARCHAR(64) NULL COMMENT '开始报关操作人姓名快照',
+  started_at DATETIME(3) NULL COMMENT '开始报关时间',
+  completed_by BIGINT UNSIGNED NULL COMMENT '完成报关操作人ID',
+  completed_by_name VARCHAR(64) NULL COMMENT '完成报关操作人姓名快照',
+  completed_at DATETIME(3) NULL COMMENT '完成报关时间',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '报关聚合创建时间',
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3) COMMENT '报关聚合更新时间',
+  version INT UNSIGNED NOT NULL DEFAULT 0 COMMENT '报关聚合乐观锁版本',
   PRIMARY KEY(id),
   UNIQUE KEY uk_customs_container_plan(loading_plan_id),
   UNIQUE KEY uk_customs_container_booking(container_booking_id),
@@ -9940,24 +9940,24 @@ CREATE TABLE IF NOT EXISTS fl_customs_container (
 ) ENGINE=InnoDB COMMENT='装柜完成后的整柜出口报关聚合';
 
 CREATE TABLE IF NOT EXISTS fl_customs_customer_document (
-  id BIGINT UNSIGNED NOT NULL,
-  customs_container_id BIGINT UNSIGNED NOT NULL,
+  id BIGINT UNSIGNED NOT NULL COMMENT '客户报关资料ID',
+  customs_container_id BIGINT UNSIGNED NOT NULL COMMENT '所属整柜报关聚合ID',
   tenant_id BIGINT UNSIGNED NOT NULL COMMENT '客户隔离键；只允许关联同客户退税票',
-  file_id BIGINT UNSIGNED NOT NULL,
-  file_name VARCHAR(255) NOT NULL,
-  file_hash CHAR(64) NOT NULL,
-  content_type VARCHAR(128) NULL,
-  size_bytes BIGINT UNSIGNED NOT NULL,
-  status VARCHAR(16) NOT NULL DEFAULT 'ACTIVE',
-  uploaded_by BIGINT UNSIGNED NOT NULL,
-  uploaded_at DATETIME(3) NOT NULL,
-  frozen_version INT UNSIGNED NULL,
-  frozen_at DATETIME(3) NULL,
-  deleted_by BIGINT UNSIGNED NULL,
-  deleted_at DATETIME(3) NULL,
-  version INT UNSIGNED NOT NULL DEFAULT 1,
-  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),
+  file_id BIGINT UNSIGNED NOT NULL COMMENT 'File服务文件ID',
+  file_name VARCHAR(255) NOT NULL COMMENT '客户资料文件名快照',
+  file_hash CHAR(64) NOT NULL COMMENT '客户资料文件SHA-256摘要',
+  content_type VARCHAR(128) NULL COMMENT '客户资料文件内容类型',
+  size_bytes BIGINT UNSIGNED NOT NULL COMMENT '客户资料文件大小（字节）',
+  status VARCHAR(16) NOT NULL DEFAULT 'ACTIVE' COMMENT '资料状态：ACTIVE有效、DELETED已删除',
+  uploaded_by BIGINT UNSIGNED NOT NULL COMMENT '上传操作人ID',
+  uploaded_at DATETIME(3) NOT NULL COMMENT '上传时间',
+  frozen_version INT UNSIGNED NULL COMMENT '开始报关时冻结的资料版本',
+  frozen_at DATETIME(3) NULL COMMENT '资料冻结时间',
+  deleted_by BIGINT UNSIGNED NULL COMMENT '删除操作人ID',
+  deleted_at DATETIME(3) NULL COMMENT '逻辑删除时间',
+  version INT UNSIGNED NOT NULL DEFAULT 1 COMMENT '客户资料当前版本',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '客户资料创建时间',
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3) COMMENT '客户资料更新时间',
   PRIMARY KEY(id),
   KEY idx_customs_customer_document_container(customs_container_id,status,tenant_id),
   CONSTRAINT fk_customs_customer_document_container FOREIGN KEY(customs_container_id) REFERENCES fl_customs_container(id),
@@ -9967,30 +9967,30 @@ CREATE TABLE IF NOT EXISTS fl_customs_customer_document (
 ) ENGINE=InnoDB COMMENT='客户整份退税报送资料逻辑根';
 
 CREATE TABLE IF NOT EXISTS fl_customs_customer_document_inbound (
-  document_id BIGINT UNSIGNED NOT NULL,
-  inbound_id BIGINT UNSIGNED NOT NULL,
-  tenant_id BIGINT UNSIGNED NOT NULL,
-  order_id BIGINT UNSIGNED NOT NULL,
-  inbound_code VARCHAR(40) NOT NULL,
-  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  document_id BIGINT UNSIGNED NOT NULL COMMENT '客户报关资料ID',
+  inbound_id BIGINT UNSIGNED NOT NULL COMMENT '覆盖的入仓单ID',
+  tenant_id BIGINT UNSIGNED NOT NULL COMMENT '入仓单客户隔离键',
+  order_id BIGINT UNSIGNED NOT NULL COMMENT '入仓单所属订单ID',
+  inbound_code VARCHAR(40) NOT NULL COMMENT '入仓码快照',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '资料覆盖关系创建时间',
   PRIMARY KEY(document_id,inbound_id),
   KEY idx_customs_document_inbound(inbound_id,tenant_id),
   CONSTRAINT fk_customs_document_inbound_document FOREIGN KEY(document_id) REFERENCES fl_customs_customer_document(id)
 ) ENGINE=InnoDB COMMENT='客户报送资料与当前柜退税入仓码多对多关系';
 
 CREATE TABLE IF NOT EXISTS fl_customs_customer_document_version (
-  id BIGINT UNSIGNED NOT NULL,
-  document_id BIGINT UNSIGNED NOT NULL,
-  document_version INT UNSIGNED NOT NULL,
-  file_id BIGINT UNSIGNED NOT NULL,
-  file_name VARCHAR(255) NOT NULL,
-  file_hash CHAR(64) NOT NULL,
-  content_type VARCHAR(128) NULL,
-  size_bytes BIGINT UNSIGNED NOT NULL,
-  scope_snapshot_json JSON NOT NULL,
-  action VARCHAR(24) NOT NULL COMMENT 'UPLOAD、REPLACE、SCOPE_CHANGE、DELETE',
-  operator_id BIGINT UNSIGNED NOT NULL,
-  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  id BIGINT UNSIGNED NOT NULL COMMENT '客户资料版本记录ID',
+  document_id BIGINT UNSIGNED NOT NULL COMMENT '客户报关资料ID',
+  document_version INT UNSIGNED NOT NULL COMMENT '客户资料版本号',
+  file_id BIGINT UNSIGNED NOT NULL COMMENT '该版本File服务文件ID',
+  file_name VARCHAR(255) NOT NULL COMMENT '该版本文件名快照',
+  file_hash CHAR(64) NOT NULL COMMENT '该版本文件SHA-256摘要',
+  content_type VARCHAR(128) NULL COMMENT '该版本文件内容类型',
+  size_bytes BIGINT UNSIGNED NOT NULL COMMENT '该版本文件大小（字节）',
+  scope_snapshot_json JSON NOT NULL COMMENT '该版本覆盖入仓码范围快照',
+  action VARCHAR(24) NOT NULL COMMENT '版本动作：UPLOAD上传、REPLACE替换、SCOPE_CHANGE调整范围、DELETE删除',
+  operator_id BIGINT UNSIGNED NOT NULL COMMENT '版本操作人ID',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '版本记录创建时间',
   PRIMARY KEY(id),
   UNIQUE KEY uk_customs_customer_document_version(document_id,document_version),
   CONSTRAINT fk_customs_customer_document_version FOREIGN KEY(document_id) REFERENCES fl_customs_customer_document(id),
@@ -9998,77 +9998,77 @@ CREATE TABLE IF NOT EXISTS fl_customs_customer_document_version (
 ) ENGINE=InnoDB COMMENT='客户报送资料文件与覆盖范围不可变版本';
 
 CREATE TABLE IF NOT EXISTS fl_customs_frozen_document_inbound (
-  document_id BIGINT UNSIGNED NOT NULL,
-  inbound_id BIGINT UNSIGNED NOT NULL,
-  tenant_id BIGINT UNSIGNED NOT NULL,
-  order_id BIGINT UNSIGNED NOT NULL,
-  inbound_code VARCHAR(40) NOT NULL,
-  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  document_id BIGINT UNSIGNED NOT NULL COMMENT '冻结的客户报关资料ID',
+  inbound_id BIGINT UNSIGNED NOT NULL COMMENT '冻结覆盖的入仓单ID',
+  tenant_id BIGINT UNSIGNED NOT NULL COMMENT '冻结入仓单客户隔离键',
+  order_id BIGINT UNSIGNED NOT NULL COMMENT '冻结入仓单所属订单ID',
+  inbound_code VARCHAR(40) NOT NULL COMMENT '冻结入仓码快照',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '覆盖范围冻结时间',
   PRIMARY KEY(document_id,inbound_id),
   CONSTRAINT fk_customs_frozen_document FOREIGN KEY(document_id) REFERENCES fl_customs_customer_document(id)
 ) ENGINE=InnoDB COMMENT='开始报关时冻结的客户资料覆盖范围';
 
 CREATE TABLE IF NOT EXISTS fl_customs_completion_document (
-  id BIGINT UNSIGNED NOT NULL,
+  id BIGINT UNSIGNED NOT NULL COMMENT '报关完成文件ID',
   source_document_id BIGINT UNSIGNED NOT NULL COMMENT '一份冻结客户资料严格对应一份完成文件逻辑根',
-  file_id BIGINT UNSIGNED NOT NULL,
-  file_name VARCHAR(255) NOT NULL,
-  file_hash CHAR(64) NOT NULL,
-  content_type VARCHAR(128) NULL,
-  size_bytes BIGINT UNSIGNED NOT NULL,
-  uploaded_by BIGINT UNSIGNED NOT NULL,
-  uploaded_by_name VARCHAR(64) NULL,
-  uploaded_at DATETIME(3) NOT NULL,
-  version INT UNSIGNED NOT NULL DEFAULT 1,
-  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),
+  file_id BIGINT UNSIGNED NOT NULL COMMENT '完成文件的File服务文件ID',
+  file_name VARCHAR(255) NOT NULL COMMENT '完成文件名快照',
+  file_hash CHAR(64) NOT NULL COMMENT '完成文件SHA-256摘要',
+  content_type VARCHAR(128) NULL COMMENT '完成文件内容类型',
+  size_bytes BIGINT UNSIGNED NOT NULL COMMENT '完成文件大小（字节）',
+  uploaded_by BIGINT UNSIGNED NOT NULL COMMENT '完成文件上传操作人ID',
+  uploaded_by_name VARCHAR(64) NULL COMMENT '完成文件上传操作人姓名快照',
+  uploaded_at DATETIME(3) NOT NULL COMMENT '完成文件上传时间',
+  version INT UNSIGNED NOT NULL DEFAULT 1 COMMENT '完成文件当前版本',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '完成文件创建时间',
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3) COMMENT '完成文件更新时间',
   PRIMARY KEY(id),
   UNIQUE KEY uk_customs_completion_source(source_document_id),
   CONSTRAINT fk_customs_completion_source FOREIGN KEY(source_document_id) REFERENCES fl_customs_customer_document(id)
 ) ENGINE=InnoDB COMMENT='报关完成文件当前版本';
 
 CREATE TABLE IF NOT EXISTS fl_customs_completion_document_version (
-  id BIGINT UNSIGNED NOT NULL,
-  completion_document_id BIGINT UNSIGNED NOT NULL,
-  document_version INT UNSIGNED NOT NULL,
-  file_id BIGINT UNSIGNED NOT NULL,
-  file_name VARCHAR(255) NOT NULL,
-  file_hash CHAR(64) NOT NULL,
-  content_type VARCHAR(128) NULL,
-  size_bytes BIGINT UNSIGNED NOT NULL,
-  operator_id BIGINT UNSIGNED NOT NULL,
-  operator_name VARCHAR(64) NULL,
-  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  id BIGINT UNSIGNED NOT NULL COMMENT '完成文件版本记录ID',
+  completion_document_id BIGINT UNSIGNED NOT NULL COMMENT '报关完成文件ID',
+  document_version INT UNSIGNED NOT NULL COMMENT '完成文件版本号',
+  file_id BIGINT UNSIGNED NOT NULL COMMENT '该版本File服务文件ID',
+  file_name VARCHAR(255) NOT NULL COMMENT '该版本文件名快照',
+  file_hash CHAR(64) NOT NULL COMMENT '该版本文件SHA-256摘要',
+  content_type VARCHAR(128) NULL COMMENT '该版本文件内容类型',
+  size_bytes BIGINT UNSIGNED NOT NULL COMMENT '该版本文件大小（字节）',
+  operator_id BIGINT UNSIGNED NOT NULL COMMENT '版本上传操作人ID',
+  operator_name VARCHAR(64) NULL COMMENT '版本上传操作人姓名快照',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '完成文件版本创建时间',
   PRIMARY KEY(id),
   UNIQUE KEY uk_customs_completion_version(completion_document_id,document_version),
   CONSTRAINT fk_customs_completion_version FOREIGN KEY(completion_document_id) REFERENCES fl_customs_completion_document(id)
 ) ENGINE=InnoDB COMMENT='报关完成文件不可变覆盖版本';
 
 CREATE TABLE IF NOT EXISTS fl_customs_container_history (
-  id BIGINT UNSIGNED NOT NULL,
-  customs_container_id BIGINT UNSIGNED NOT NULL,
-  action VARCHAR(40) NOT NULL,
-  from_status VARCHAR(40) NULL,
-  to_status VARCHAR(40) NULL,
-  remark VARCHAR(500) NULL,
-  operator_id BIGINT UNSIGNED NOT NULL,
-  operator_name VARCHAR(64) NULL,
-  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  id BIGINT UNSIGNED NOT NULL COMMENT '整柜报关历史ID',
+  customs_container_id BIGINT UNSIGNED NOT NULL COMMENT '所属整柜报关聚合ID',
+  action VARCHAR(40) NOT NULL COMMENT '报关状态或系统触发动作',
+  from_status VARCHAR(40) NULL COMMENT '动作前报关状态',
+  to_status VARCHAR(40) NULL COMMENT '动作后报关状态',
+  remark VARCHAR(500) NULL COMMENT '动作说明或备注',
+  operator_id BIGINT UNSIGNED NOT NULL COMMENT '动作操作人ID',
+  operator_name VARCHAR(64) NULL COMMENT '动作操作人姓名快照',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '报关历史创建时间',
   PRIMARY KEY(id),
   KEY idx_customs_container_history(customs_container_id,created_at,id),
   CONSTRAINT fk_customs_container_history FOREIGN KEY(customs_container_id) REFERENCES fl_customs_container(id)
 ) ENGINE=InnoDB COMMENT='整柜报关状态与系统触发历史';
 
 CREATE TABLE IF NOT EXISTS fl_customs_command (
-  id BIGINT UNSIGNED NOT NULL,
-  actor_id BIGINT UNSIGNED NOT NULL,
-  action VARCHAR(80) NOT NULL,
-  idempotency_key VARCHAR(128) NOT NULL,
-  request_hash CHAR(64) NOT NULL,
-  status VARCHAR(16) NOT NULL,
-  result_id BIGINT UNSIGNED NULL,
-  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-  completed_at DATETIME(3) NULL,
+  id BIGINT UNSIGNED NOT NULL COMMENT '报关写命令ID',
+  actor_id BIGINT UNSIGNED NOT NULL COMMENT '命令发起操作人ID',
+  action VARCHAR(80) NOT NULL COMMENT '报关写命令动作',
+  idempotency_key VARCHAR(128) NOT NULL COMMENT '调用方幂等键',
+  request_hash CHAR(64) NOT NULL COMMENT '规范化请求SHA-256摘要',
+  status VARCHAR(16) NOT NULL COMMENT '命令状态：PROCESSING处理中、SUCCESS成功',
+  result_id BIGINT UNSIGNED NULL COMMENT '命令成功生成的业务结果ID',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '命令创建时间',
+  completed_at DATETIME(3) NULL COMMENT '命令成功完成时间',
   PRIMARY KEY(id),
   UNIQUE KEY uk_customs_command(actor_id,action,idempotency_key),
   CONSTRAINT chk_customs_command_status CHECK(status IN('PROCESSING','SUCCESS'))
diff --git a/firstleg/src/main/resources/db/phase3-container-customs-schema.sql b/firstleg/src/main/resources/db/phase3-container-customs-schema.sql
index 5f86e3d2b..3da35accc 100644
--- a/firstleg/src/main/resources/db/phase3-container-customs-schema.sql
+++ b/firstleg/src/main/resources/db/phase3-container-customs-schema.sql
@@ -2,19 +2,19 @@ SET NAMES utf8mb4;
 USE baiyue_firstleg;
 
 CREATE TABLE IF NOT EXISTS fl_customs_container (
-  id BIGINT UNSIGNED NOT NULL,
+  id BIGINT UNSIGNED NOT NULL COMMENT '整柜报关聚合ID',
   loading_plan_id BIGINT UNSIGNED NOT NULL COMMENT '已完成装柜计划ID；报关柜级聚合唯一键',
   container_booking_id BIGINT UNSIGNED NOT NULL COMMENT '物理货柜ID',
-  status VARCHAR(40) NOT NULL COMMENT 'WAITING_CUSTOMER_DOCUMENTS、READY_TO_START、DECLARING、COMPLETED',
-  started_by BIGINT UNSIGNED NULL,
-  started_by_name VARCHAR(64) NULL,
-  started_at DATETIME(3) NULL,
-  completed_by BIGINT UNSIGNED NULL,
-  completed_by_name VARCHAR(64) 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),
-  version INT UNSIGNED NOT NULL DEFAULT 0,
+  status VARCHAR(40) NOT NULL COMMENT '报关状态：WAITING_CUSTOMER_DOCUMENTS待客户资料、READY_TO_START待开始、DECLARING报关中、COMPLETED已完成',
+  started_by BIGINT UNSIGNED NULL COMMENT '开始报关操作人ID',
+  started_by_name VARCHAR(64) NULL COMMENT '开始报关操作人姓名快照',
+  started_at DATETIME(3) NULL COMMENT '开始报关时间',
+  completed_by BIGINT UNSIGNED NULL COMMENT '完成报关操作人ID',
+  completed_by_name VARCHAR(64) NULL COMMENT '完成报关操作人姓名快照',
+  completed_at DATETIME(3) NULL COMMENT '完成报关时间',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '报关聚合创建时间',
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3) COMMENT '报关聚合更新时间',
+  version INT UNSIGNED NOT NULL DEFAULT 0 COMMENT '报关聚合乐观锁版本',
   PRIMARY KEY(id),
   UNIQUE KEY uk_customs_container_plan(loading_plan_id),
   UNIQUE KEY uk_customs_container_booking(container_booking_id),
@@ -24,24 +24,24 @@ CREATE TABLE IF NOT EXISTS fl_customs_container (
 ) ENGINE=InnoDB COMMENT='装柜完成后的整柜出口报关聚合';
 
 CREATE TABLE IF NOT EXISTS fl_customs_customer_document (
-  id BIGINT UNSIGNED NOT NULL,
-  customs_container_id BIGINT UNSIGNED NOT NULL,
+  id BIGINT UNSIGNED NOT NULL COMMENT '客户报关资料ID',
+  customs_container_id BIGINT UNSIGNED NOT NULL COMMENT '所属整柜报关聚合ID',
   tenant_id BIGINT UNSIGNED NOT NULL COMMENT '客户隔离键；只允许关联同客户退税票',
-  file_id BIGINT UNSIGNED NOT NULL,
-  file_name VARCHAR(255) NOT NULL,
-  file_hash CHAR(64) NOT NULL,
-  content_type VARCHAR(128) NULL,
-  size_bytes BIGINT UNSIGNED NOT NULL,
-  status VARCHAR(16) NOT NULL DEFAULT 'ACTIVE',
-  uploaded_by BIGINT UNSIGNED NOT NULL,
-  uploaded_at DATETIME(3) NOT NULL,
-  frozen_version INT UNSIGNED NULL,
-  frozen_at DATETIME(3) NULL,
-  deleted_by BIGINT UNSIGNED NULL,
-  deleted_at DATETIME(3) NULL,
-  version INT UNSIGNED NOT NULL DEFAULT 1,
-  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),
+  file_id BIGINT UNSIGNED NOT NULL COMMENT 'File服务文件ID',
+  file_name VARCHAR(255) NOT NULL COMMENT '客户资料文件名快照',
+  file_hash CHAR(64) NOT NULL COMMENT '客户资料文件SHA-256摘要',
+  content_type VARCHAR(128) NULL COMMENT '客户资料文件内容类型',
+  size_bytes BIGINT UNSIGNED NOT NULL COMMENT '客户资料文件大小（字节）',
+  status VARCHAR(16) NOT NULL DEFAULT 'ACTIVE' COMMENT '资料状态：ACTIVE有效、DELETED已删除',
+  uploaded_by BIGINT UNSIGNED NOT NULL COMMENT '上传操作人ID',
+  uploaded_at DATETIME(3) NOT NULL COMMENT '上传时间',
+  frozen_version INT UNSIGNED NULL COMMENT '开始报关时冻结的资料版本',
+  frozen_at DATETIME(3) NULL COMMENT '资料冻结时间',
+  deleted_by BIGINT UNSIGNED NULL COMMENT '删除操作人ID',
+  deleted_at DATETIME(3) NULL COMMENT '逻辑删除时间',
+  version INT UNSIGNED NOT NULL DEFAULT 1 COMMENT '客户资料当前版本',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '客户资料创建时间',
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3) COMMENT '客户资料更新时间',
   PRIMARY KEY(id),
   KEY idx_customs_customer_document_container(customs_container_id,status,tenant_id),
   CONSTRAINT fk_customs_customer_document_container FOREIGN KEY(customs_container_id) REFERENCES fl_customs_container(id),
@@ -51,30 +51,30 @@ CREATE TABLE IF NOT EXISTS fl_customs_customer_document (
 ) ENGINE=InnoDB COMMENT='客户整份退税报送资料逻辑根';
 
 CREATE TABLE IF NOT EXISTS fl_customs_customer_document_inbound (
-  document_id BIGINT UNSIGNED NOT NULL,
-  inbound_id BIGINT UNSIGNED NOT NULL,
-  tenant_id BIGINT UNSIGNED NOT NULL,
-  order_id BIGINT UNSIGNED NOT NULL,
-  inbound_code VARCHAR(40) NOT NULL,
-  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  document_id BIGINT UNSIGNED NOT NULL COMMENT '客户报关资料ID',
+  inbound_id BIGINT UNSIGNED NOT NULL COMMENT '覆盖的入仓单ID',
+  tenant_id BIGINT UNSIGNED NOT NULL COMMENT '入仓单客户隔离键',
+  order_id BIGINT UNSIGNED NOT NULL COMMENT '入仓单所属订单ID',
+  inbound_code VARCHAR(40) NOT NULL COMMENT '入仓码快照',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '资料覆盖关系创建时间',
   PRIMARY KEY(document_id,inbound_id),
   KEY idx_customs_document_inbound(inbound_id,tenant_id),
   CONSTRAINT fk_customs_document_inbound_document FOREIGN KEY(document_id) REFERENCES fl_customs_customer_document(id)
 ) ENGINE=InnoDB COMMENT='客户报送资料与当前柜退税入仓码多对多关系';
 
 CREATE TABLE IF NOT EXISTS fl_customs_customer_document_version (
-  id BIGINT UNSIGNED NOT NULL,
-  document_id BIGINT UNSIGNED NOT NULL,
-  document_version INT UNSIGNED NOT NULL,
-  file_id BIGINT UNSIGNED NOT NULL,
-  file_name VARCHAR(255) NOT NULL,
-  file_hash CHAR(64) NOT NULL,
-  content_type VARCHAR(128) NULL,
-  size_bytes BIGINT UNSIGNED NOT NULL,
-  scope_snapshot_json JSON NOT NULL,
-  action VARCHAR(24) NOT NULL COMMENT 'UPLOAD、REPLACE、SCOPE_CHANGE、DELETE',
-  operator_id BIGINT UNSIGNED NOT NULL,
-  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  id BIGINT UNSIGNED NOT NULL COMMENT '客户资料版本记录ID',
+  document_id BIGINT UNSIGNED NOT NULL COMMENT '客户报关资料ID',
+  document_version INT UNSIGNED NOT NULL COMMENT '客户资料版本号',
+  file_id BIGINT UNSIGNED NOT NULL COMMENT '该版本File服务文件ID',
+  file_name VARCHAR(255) NOT NULL COMMENT '该版本文件名快照',
+  file_hash CHAR(64) NOT NULL COMMENT '该版本文件SHA-256摘要',
+  content_type VARCHAR(128) NULL COMMENT '该版本文件内容类型',
+  size_bytes BIGINT UNSIGNED NOT NULL COMMENT '该版本文件大小（字节）',
+  scope_snapshot_json JSON NOT NULL COMMENT '该版本覆盖入仓码范围快照',
+  action VARCHAR(24) NOT NULL COMMENT '版本动作：UPLOAD上传、REPLACE替换、SCOPE_CHANGE调整范围、DELETE删除',
+  operator_id BIGINT UNSIGNED NOT NULL COMMENT '版本操作人ID',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '版本记录创建时间',
   PRIMARY KEY(id),
   UNIQUE KEY uk_customs_customer_document_version(document_id,document_version),
   CONSTRAINT fk_customs_customer_document_version FOREIGN KEY(document_id) REFERENCES fl_customs_customer_document(id),
@@ -82,77 +82,77 @@ CREATE TABLE IF NOT EXISTS fl_customs_customer_document_version (
 ) ENGINE=InnoDB COMMENT='客户报送资料文件与覆盖范围不可变版本';
 
 CREATE TABLE IF NOT EXISTS fl_customs_frozen_document_inbound (
-  document_id BIGINT UNSIGNED NOT NULL,
-  inbound_id BIGINT UNSIGNED NOT NULL,
-  tenant_id BIGINT UNSIGNED NOT NULL,
-  order_id BIGINT UNSIGNED NOT NULL,
-  inbound_code VARCHAR(40) NOT NULL,
-  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  document_id BIGINT UNSIGNED NOT NULL COMMENT '冻结的客户报关资料ID',
+  inbound_id BIGINT UNSIGNED NOT NULL COMMENT '冻结覆盖的入仓单ID',
+  tenant_id BIGINT UNSIGNED NOT NULL COMMENT '冻结入仓单客户隔离键',
+  order_id BIGINT UNSIGNED NOT NULL COMMENT '冻结入仓单所属订单ID',
+  inbound_code VARCHAR(40) NOT NULL COMMENT '冻结入仓码快照',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '覆盖范围冻结时间',
   PRIMARY KEY(document_id,inbound_id),
   CONSTRAINT fk_customs_frozen_document FOREIGN KEY(document_id) REFERENCES fl_customs_customer_document(id)
 ) ENGINE=InnoDB COMMENT='开始报关时冻结的客户资料覆盖范围';
 
 CREATE TABLE IF NOT EXISTS fl_customs_completion_document (
-  id BIGINT UNSIGNED NOT NULL,
+  id BIGINT UNSIGNED NOT NULL COMMENT '报关完成文件ID',
   source_document_id BIGINT UNSIGNED NOT NULL COMMENT '一份冻结客户资料严格对应一份完成文件逻辑根',
-  file_id BIGINT UNSIGNED NOT NULL,
-  file_name VARCHAR(255) NOT NULL,
-  file_hash CHAR(64) NOT NULL,
-  content_type VARCHAR(128) NULL,
-  size_bytes BIGINT UNSIGNED NOT NULL,
-  uploaded_by BIGINT UNSIGNED NOT NULL,
-  uploaded_by_name VARCHAR(64) NULL,
-  uploaded_at DATETIME(3) NOT NULL,
-  version INT UNSIGNED NOT NULL DEFAULT 1,
-  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),
+  file_id BIGINT UNSIGNED NOT NULL COMMENT '完成文件的File服务文件ID',
+  file_name VARCHAR(255) NOT NULL COMMENT '完成文件名快照',
+  file_hash CHAR(64) NOT NULL COMMENT '完成文件SHA-256摘要',
+  content_type VARCHAR(128) NULL COMMENT '完成文件内容类型',
+  size_bytes BIGINT UNSIGNED NOT NULL COMMENT '完成文件大小（字节）',
+  uploaded_by BIGINT UNSIGNED NOT NULL COMMENT '完成文件上传操作人ID',
+  uploaded_by_name VARCHAR(64) NULL COMMENT '完成文件上传操作人姓名快照',
+  uploaded_at DATETIME(3) NOT NULL COMMENT '完成文件上传时间',
+  version INT UNSIGNED NOT NULL DEFAULT 1 COMMENT '完成文件当前版本',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '完成文件创建时间',
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3) COMMENT '完成文件更新时间',
   PRIMARY KEY(id),
   UNIQUE KEY uk_customs_completion_source(source_document_id),
   CONSTRAINT fk_customs_completion_source FOREIGN KEY(source_document_id) REFERENCES fl_customs_customer_document(id)
 ) ENGINE=InnoDB COMMENT='报关完成文件当前版本';
 
 CREATE TABLE IF NOT EXISTS fl_customs_completion_document_version (
-  id BIGINT UNSIGNED NOT NULL,
-  completion_document_id BIGINT UNSIGNED NOT NULL,
-  document_version INT UNSIGNED NOT NULL,
-  file_id BIGINT UNSIGNED NOT NULL,
-  file_name VARCHAR(255) NOT NULL,
-  file_hash CHAR(64) NOT NULL,
-  content_type VARCHAR(128) NULL,
-  size_bytes BIGINT UNSIGNED NOT NULL,
-  operator_id BIGINT UNSIGNED NOT NULL,
-  operator_name VARCHAR(64) NULL,
-  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  id BIGINT UNSIGNED NOT NULL COMMENT '完成文件版本记录ID',
+  completion_document_id BIGINT UNSIGNED NOT NULL COMMENT '报关完成文件ID',
+  document_version INT UNSIGNED NOT NULL COMMENT '完成文件版本号',
+  file_id BIGINT UNSIGNED NOT NULL COMMENT '该版本File服务文件ID',
+  file_name VARCHAR(255) NOT NULL COMMENT '该版本文件名快照',
+  file_hash CHAR(64) NOT NULL COMMENT '该版本文件SHA-256摘要',
+  content_type VARCHAR(128) NULL COMMENT '该版本文件内容类型',
+  size_bytes BIGINT UNSIGNED NOT NULL COMMENT '该版本文件大小（字节）',
+  operator_id BIGINT UNSIGNED NOT NULL COMMENT '版本上传操作人ID',
+  operator_name VARCHAR(64) NULL COMMENT '版本上传操作人姓名快照',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '完成文件版本创建时间',
   PRIMARY KEY(id),
   UNIQUE KEY uk_customs_completion_version(completion_document_id,document_version),
   CONSTRAINT fk_customs_completion_version FOREIGN KEY(completion_document_id) REFERENCES fl_customs_completion_document(id)
 ) ENGINE=InnoDB COMMENT='报关完成文件不可变覆盖版本';
 
 CREATE TABLE IF NOT EXISTS fl_customs_container_history (
-  id BIGINT UNSIGNED NOT NULL,
-  customs_container_id BIGINT UNSIGNED NOT NULL,
-  action VARCHAR(40) NOT NULL,
-  from_status VARCHAR(40) NULL,
-  to_status VARCHAR(40) NULL,
-  remark VARCHAR(500) NULL,
-  operator_id BIGINT UNSIGNED NOT NULL,
-  operator_name VARCHAR(64) NULL,
-  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  id BIGINT UNSIGNED NOT NULL COMMENT '整柜报关历史ID',
+  customs_container_id BIGINT UNSIGNED NOT NULL COMMENT '所属整柜报关聚合ID',
+  action VARCHAR(40) NOT NULL COMMENT '报关状态或系统触发动作',
+  from_status VARCHAR(40) NULL COMMENT '动作前报关状态',
+  to_status VARCHAR(40) NULL COMMENT '动作后报关状态',
+  remark VARCHAR(500) NULL COMMENT '动作说明或备注',
+  operator_id BIGINT UNSIGNED NOT NULL COMMENT '动作操作人ID',
+  operator_name VARCHAR(64) NULL COMMENT '动作操作人姓名快照',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '报关历史创建时间',
   PRIMARY KEY(id),
   KEY idx_customs_container_history(customs_container_id,created_at,id),
   CONSTRAINT fk_customs_container_history FOREIGN KEY(customs_container_id) REFERENCES fl_customs_container(id)
 ) ENGINE=InnoDB COMMENT='整柜报关状态与系统触发历史';
 
 CREATE TABLE IF NOT EXISTS fl_customs_command (
-  id BIGINT UNSIGNED NOT NULL,
-  actor_id BIGINT UNSIGNED NOT NULL,
-  action VARCHAR(80) NOT NULL,
-  idempotency_key VARCHAR(128) NOT NULL,
-  request_hash CHAR(64) NOT NULL,
-  status VARCHAR(16) NOT NULL,
-  result_id BIGINT UNSIGNED NULL,
-  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-  completed_at DATETIME(3) NULL,
+  id BIGINT UNSIGNED NOT NULL COMMENT '报关写命令ID',
+  actor_id BIGINT UNSIGNED NOT NULL COMMENT '命令发起操作人ID',
+  action VARCHAR(80) NOT NULL COMMENT '报关写命令动作',
+  idempotency_key VARCHAR(128) NOT NULL COMMENT '调用方幂等键',
+  request_hash CHAR(64) NOT NULL COMMENT '规范化请求SHA-256摘要',
+  status VARCHAR(16) NOT NULL COMMENT '命令状态：PROCESSING处理中、SUCCESS成功',
+  result_id BIGINT UNSIGNED NULL COMMENT '命令成功生成的业务结果ID',
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) COMMENT '命令创建时间',
+  completed_at DATETIME(3) NULL COMMENT '命令成功完成时间',
   PRIMARY KEY(id),
   UNIQUE KEY uk_customs_command(actor_id,action,idempotency_key),
   CONSTRAINT chk_customs_command_status CHECK(status IN('PROCESSING','SUCCESS'))
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/customs/repository/CustomsSqlContractTest.java b/firstleg/src/test/java/com/baiyue/firstleg/customs/repository/CustomsSqlContractTest.java
index 7a8b5240c..50edf3a3d 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/customs/repository/CustomsSqlContractTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/customs/repository/CustomsSqlContractTest.java
@@ -4,10 +4,32 @@ import org.junit.jupiter.api.Test;
 
 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
 class CustomsSqlContractTest {
+    private static final Set<String> CUSTOMS_TABLES = Set.of(
+        "fl_customs_container",
+        "fl_customs_customer_document",
+        "fl_customs_customer_document_inbound",
+        "fl_customs_customer_document_version",
+        "fl_customs_frozen_document_inbound",
+        "fl_customs_completion_document",
+        "fl_customs_completion_document_version",
+        "fl_customs_container_history",
+        "fl_customs_command");
+    private static final Pattern CREATE_TABLE = Pattern.compile(
+        "(?i)CREATE\\s+TABLE\\s+IF\\s+NOT\\s+EXISTS\\s+`?([a-zA-Z0-9_]+)`?\\s*\\(");
+    private static final Pattern COLUMN = Pattern.compile(
+        "(?i)^\\s*`?([a-zA-Z0-9_]+)`?\\s+(bigint|char|datetime|int|json|tinyint|varchar)\\b");
+    private static final Pattern CHINESE_COMMENT = Pattern.compile(
+        "(?i)\\bCOMMENT\\s*=?\\s*'(?:(?:''|\\\\'|[^'])*[\\u3400-\\u9fff](?:''|\\\\'|[^'])*)'");
+
     @Test
     void moduleSqlContainsContainerStateManyToManyFreezeVersionAndIdempotencyContracts() throws Exception {
         String sql = Files.readString(Path.of("src/main/resources/db/phase3-container-customs-schema.sql"));
@@ -19,4 +41,76 @@ class CustomsSqlContractTest {
             .contains("fl_customs_command", "uk_customs_command(actor_id,action,idempotency_key)")
             .doesNotContain("platform:firstleg:loading-list:export");
     }
+
+    @Test
+    void everyCustomsColumnHasAnAccurateChineseComment() throws Exception {
+        String sql = Files.readString(Path.of("src/main/resources/db/phase3-container-customs-schema.sql"));
+        Matcher tableMatcher = CREATE_TABLE.matcher(sql);
+        Set<String> found = new java.util.HashSet<>();
+        List<String> missingComments = new ArrayList<>();
+
+        while (tableMatcher.find()) {
+            String table = tableMatcher.group(1);
+            if (!CUSTOMS_TABLES.contains(table)) continue;
+            found.add(table);
+            int open = tableMatcher.end() - 1;
+            int close = matchingParen(sql, open);
+            for (String definition : splitDefinitions(sql.substring(open + 1, close))) {
+                Matcher columnMatcher = COLUMN.matcher(definition);
+                if (columnMatcher.find() && !CHINESE_COMMENT.matcher(definition).find()) {
+                    missingComments.add(table + "." + columnMatcher.group(1));
+                }
+            }
+        }
+
+        assertThat(found).containsExactlyInAnyOrderElementsOf(CUSTOMS_TABLES);
+        assertThat(missingComments).isEmpty();
+    }
+
+    private static int matchingParen(String sql, int open) {
+        int depth = 0;
+        char quote = 0;
+        for (int index = open; index < sql.length(); index++) {
+            char current = sql.charAt(index);
+            if (quote != 0) {
+                if (current == '\\') index++;
+                else if (current == quote) {
+                    if (index + 1 < sql.length() && sql.charAt(index + 1) == quote) index++;
+                    else quote = 0;
+                }
+                continue;
+            }
+            if (current == '\'' || current == '"' || current == '`') quote = current;
+            else if (current == '(') depth++;
+            else if (current == ')' && --depth == 0) return index;
+        }
+        throw new AssertionError("unclosed CREATE TABLE at " + open);
+    }
+
+    private static List<String> splitDefinitions(String body) {
+        List<String> definitions = new ArrayList<>();
+        int start = 0;
+        int depth = 0;
+        char quote = 0;
+        for (int index = 0; index < body.length(); index++) {
+            char current = body.charAt(index);
+            if (quote != 0) {
+                if (current == '\\') index++;
+                else if (current == quote) {
+                    if (index + 1 < body.length() && body.charAt(index + 1) == quote) index++;
+                    else quote = 0;
+                }
+                continue;
+            }
+            if (current == '\'' || current == '"' || current == '`') quote = current;
+            else if (current == '(') depth++;
+            else if (current == ')') depth--;
+            else if (current == ',' && depth == 0) {
+                definitions.add(body.substring(start, index));
+                start = index + 1;
+            }
+        }
+        definitions.add(body.substring(start));
+        return definitions;
+    }
 }