优化

auth/src/main/java/com/baiyue/auth/client/IamOnboardingClient.java

@@ -5,6 +5,7 @@ import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.cloud.openfeign.FeignClient;
 import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestHeader;
 
@@ -16,6 +17,11 @@ public interface IamOnboardingClient {
             @RequestHeader("X-Internal-Service-Token") String internalToken,
             @RequestBody OnboardingRequest request);
 
+    @GetMapping("/merchant-registrations/{authUserId}")
+    ApiResponse<OnboardingResponse> registration(
+            @RequestHeader("X-Internal-Service-Token") String internalToken,
+            @PathVariable("authUserId") Long authUserId);
+
     @DeleteMapping("/merchant-registrations/{authUserId}/compensation")
     ApiResponse<Void> compensate(
             @RequestHeader("X-Internal-Service-Token") String internalToken,

auth/src/main/java/com/baiyue/auth/dto/MerchantRegisterRequest.java

@@ -12,7 +12,7 @@ public record MerchantRegisterRequest(
         @NotBlank @Size(min = 8, max = 72) String password,
         @NotBlank @Size(max = 64) String displayName,
         @NotBlank @Size(max = 128) String companyName,
-        @NotBlank @Size(max = 64) String legalPerson,
+        @Size(max = 64) String legalPerson,
         @Schema(description = "首个企业管理员的登录手机号；注册时同时初始化企业联系电话，创建后两者独立维护")
         @NotBlank @Pattern(regexp = "^1[3-9]\\d{9}$") String phone,
         @Email @Size(max = 128) String contactEmail,

auth/src/main/java/com/baiyue/auth/service/MerchantRegistrationService.java

@@ -35,11 +35,20 @@ public class MerchantRegistrationService {
     @BusinessAudit(event = "MERCHANT_REGISTER", resourceType = "ACCOUNT",
         resourceId = "#request.username", description = "商户注册", captureAfter = false)
     public MerchantRegisterResponse register(MerchantRegisterRequest request) {
-        if (accountRepository.existsByUsername(request.username())) {
+        AuthAccount usernameAccount = accountRepository.findByUsername(request.username());
+        AuthAccount phoneAccount = accountRepository.findByPhone(request.phone());
+        if (usernameAccount != null && phoneAccount != null
+                && usernameAccount.getId().equals(phoneAccount.getId())
+                && "MERCHANT".equals(usernameAccount.getDefaultAppCode())
+                && "ACTIVE".equals(usernameAccount.getAccountStatus())
+                && passwordEncoder.matches(request.password(), usernameAccount.getPasswordHash())) {
+            return existingRegistration(usernameAccount);
+        }
+        if (usernameAccount != null) {
             throw new BizException(ResultCode.CONFLICT, "用户名已存在");
         }
-        if (accountRepository.existsByPhone(request.phone())) {
-            throw new BizException(ResultCode.CONFLICT, "手机号已存在");
+        if (phoneAccount != null) {
+            throw new BizException(ResultCode.CONFLICT, "该手机号已注册，请直接登录后继续完善企业资质");
         }
         long accountId = IdWorker.getId();
         String passwordHash = passwordEncoder.encode(request.password());
@@ -111,6 +120,24 @@ public class MerchantRegistrationService {
                 "LOGIN_AND_COMPLETE_QUALIFICATIONS");
     }
 
+    private MerchantRegisterResponse existingRegistration(AuthAccount account) {
+        try {
+            var response = onboardingClient.registration(internalToken, account.getId());
+            if (response == null || !response.successful() || response.data() == null) {
+                throw new BizException(ResultCode.SERVICE_UNAVAILABLE, "注册状态暂时无法确认，请直接登录后继续完善企业资质");
+            }
+            var onboarding = response.data();
+            if (!java.util.Set.of("PROFILE_REQUIRED", "REJECTED").contains(onboarding.tenantStatus())) {
+                throw new BizException(ResultCode.CONFLICT, "该账号已注册，请直接登录");
+            }
+            return new MerchantRegisterResponse(account.getId(), onboarding.tenantId(), onboarding.membershipId(),
+                    onboarding.tenantStatus(), onboarding.dimensionInitializationStatus(),
+                    "LOGIN_AND_COMPLETE_QUALIFICATIONS");
+        } catch (FeignException exception) {
+            throw new BizException(ResultCode.SERVICE_UNAVAILABLE, "注册状态暂时无法确认，请直接登录后继续完善企业资质");
+        }
+    }
+
     private void registerRollbackCompensation(long accountId, AtomicBoolean compensationCompleted) {
         if (!TransactionSynchronizationManager.isSynchronizationActive()) {
             return;