feat(identity-service): 添加手动钱包重试 API

功能：
- 新增 POST /user/wallet/retry 接口
- 用户可主动触发钱包生成重试
- 自动检查钱包是否已完成，避免重复生成
- 幂等操作：重新发布 UserAccountCreatedEvent

实现：
- UserAccountController: 添加 wallet/retry 端点
- UserApplicationService: 实现 retryWalletGeneration 方法
- 重用现有的 createWalletGenerationEvent 方法
- 更新 Redis 状态为 pending

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

backend/services/identity-service/src/api/controllers/user-account.controller.ts

@@ -212,6 +212,15 @@ export class UserAccountController {
     );
   }
 
+  @Post('wallet/retry')
+  @ApiBearerAuth()
+  @ApiOperation({ summary: '手动重试钱包生成', description: '当钱包生成失败或超时时，用户可手动触发重试' })
+  @ApiResponse({ status: 200, description: '重试请求已提交' })
+  async retryWalletGeneration(@CurrentUser() user: CurrentUserData) {
+    await this.userService.retryWalletGeneration(user.userId);
+    return { message: '钱包生成重试已触发，请稍后查询钱包状态' };
+  }
+
   @Put('mnemonic/backup')
   @ApiBearerAuth()
   @ApiOperation({ summary: '标记助记词已备份' })

backend/services/identity-service/src/application/services/user-application.service.ts

@@ -807,6 +807,59 @@ export class UserApplicationService {
     };
   }
 
+  /**
+   * 手动重试钱包生成
+   *
+   * 用户可以通过此方法手动触发钱包生成重试
+   * 幂等操作：重新发布 UserAccountCreatedEvent
+   */
+  async retryWalletGeneration(userId: string): Promise<void> {
+    this.logger.log(`[WALLET-RETRY] Manual retry requested for user: ${userId}`);
+
+    try {
+      // 1. 获取用户账号信息
+      const userIdObj = UserId.create(BigInt(userId));
+      const account = await this.userRepository.findById(userIdObj);
+
+      if (!account) {
+        throw new ApplicationError('用户不存在');
+      }
+
+      // 2. 检查钱包是否已经生成完成
+      const wallets = account.getAllWalletAddresses();
+      const kavaWallet = wallets.find(w => w.chainType === ChainType.KAVA);
+      const dstWallet = wallets.find(w => w.chainType === ChainType.DST);
+      const bscWallet = wallets.find(w => w.chainType === ChainType.BSC);
+
+      if (kavaWallet && dstWallet && bscWallet) {
+        this.logger.log(`[WALLET-RETRY] Wallet already complete for user: ${userId}`);
+        return; // 钱包已完成，无需重试
+      }
+
+      // 3. 重新触发钱包生成流程
+      const event = account.createWalletGenerationEvent();
+      await this.eventPublisher.publish(event);
+
+      this.logger.log(`[WALLET-RETRY] Wallet generation retry triggered for user: ${userId}`);
+
+      // 4. 更新 Redis 状态为 pending（等待重新生成）
+      const statusData = {
+        status: 'pending',
+        userId,
+        updatedAt: new Date().toISOString(),
+      };
+
+      await this.redisService.set(
+        `keygen:status:${userId}`,
+        JSON.stringify(statusData),
+        60 * 60 * 24, // 24 小时
+      );
+    } catch (error) {
+      this.logger.error(`[WALLET-RETRY] Failed to retry wallet generation for user ${userId}`, error);
+      throw new ApplicationError('钱包生成重试失败，请稍后再试');
+    }
+  }
+
   /**
    * 获取用户的恢复助记词
    *