采购提交与报销新建/提交事务显式使用10秒上限 [09-27-purchase-submit-tx-timeout]

负载下采购提交事务超过 Prisma 交互事务默认 5000ms（P2028）返回 500。分段计时显示无单一瓶颈（总时长中位 843ms、最大 3506ms，编号锁等待最多 535ms），是约 20 条顺序查询整体变慢贴近上限。报销新建/提交同结构。三处改用项目既有的 { maxWait: 5000, timeout: 10000 }，事务内容不变；新增采购与报销提交的事务选项回归断言。 Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-09-27 12:27:04 +08:00
@@ -0,0 +1,33 @@
+{
+  "id": "purchase-submit-tx-timeout",
+  "name": "purchase-submit-tx-timeout",
+  "title": "采购提交事务负载下超时返回500",
+  "description": "负载复现中采购提交交互事务超过Prisma默认5000ms（P2028）返回500；生产b1d25d3c起同写法。查清耗时构成（锁等待/事务内查询），给出最小修复。",
+  "status": "planning",
+  "dev_type": null,
+  "scope": "transaction-timeout",
+  "package": null,
+  "priority": "P2",
+  "creator": "shunli",
+  "assignee": "shunli",
+  "createdAt": "2026-09-27",
+  "completedAt": null,
+  "branch": null,
+  "base_branch": "main",
+  "worktree_path": null,
+  "commit": null,
+  "pr_url": null,
+  "subtasks": [],
+  "children": [],
+  "parent": null,
+  "relatedFiles": [
+    "server/src/routes/purchaseRequests.js",
+    "server/src/routes/reimbursements.js",
+    "server/tests/unit/routes/purchase.submit-budget-precheck.test.js",
+    "server/tests/unit/routes/reimbursements.expense-standards.test.js"
+  ],
+  "notes": "",
+  "meta": {
+    "implementationApproval": "APPROVED_BY_USER_20260927"
+  }
+}