fix(correctness): 并发/事务/实体/时区/状态一致性修复

由 OCR（open-codereview.ai，deepseek-v4-flash）审查驱动修复：
- wallets 原子扣款防 double-spend；refund 条件更新幂等；findTransactions 分页
- financial/imports/occupancies/attendance 事务与 advisory lock；重复生成/提交幂等
- 矛盾校验器、日期区间、实体双映射/DECIMAL/nullable、时区统一（china-time）
- rbac-seed 防重激活、exam 权限恢复、状态一致性、路由顺序、N+1/IN 分块等性能项

Reviewed-by: OCR (open-codereview.ai)

apps/server/src/sync/sync-runner.ts

@@ -41,7 +41,15 @@ export class SyncRunner {
       this.logger.error(`${platform} sync failed: ${message}`, error instanceof Error ? error.stack : undefined);
       throw error;
     } finally {
-      await this.releaseLease(platform, runId);
+      // releaseLease 自身兜底：释放租约失败不能掩盖原始的同步结果/错误
+      try {
+        await this.releaseLease(platform, runId);
+      } catch (error) {
+        this.logger.error(
+          `${platform} sync lease release failed`,
+          error instanceof Error ? error.stack : undefined,
+        );
+      }
     }
   }