test(03): complete UAT - 1 passed, 3 issues

.planning/phases/03-legacy-visual-alignment-pass/03-UAT.md

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+---
+status: complete
+phase: 03-legacy-visual-alignment-pass
+source:
+  - 03-SUMMARY.md
+started: "2026-04-07T05:38:57Z"
+updated: "2026-04-07T05:48:12Z"
+---
+
+## Current Test
+
+[testing complete]
+
+## Tests
+
+### 1. Workspace 视觉基线一致性
+expected: Workspace 主页面在 typography、spacing、hierarchy 上与既定旧视觉基线一致。
+result: pass
+
+### 2. 关键交互不回归（聊天输入与线程切换）
+expected: 聊天输入、发送、历史加载、线程切换等关键交互行为与 Phase 2 基线一致。
+result: issue
+reported: "POST http://localhost:2026/api/langgraph/threads/b582ef92-ee83-403a-abdf-c322d6343d31/history 500 (Internal Server Error)"
+severity: blocker
+
+### 3. lint 基线可通过
+expected: 执行 frontend lint 命令时不应出现阻塞错误。
+result: issue
+reported: "✖ 39 problems (2 errors, 37 warnings); 2 errors and 1 warning potentially fixable with the --fix option."
+severity: major
+
+### 4. welcome-and-routing E2E 可执行
+expected: 前端服务可访问后，welcome-and-routing 用例可执行并产出明确结果。
+result: issue
+reported: "后端问题，接口报错；4 failed: DF-ROUTE-001, DF-ROUTE-004, DF-ROUTE-005, DF-ROUTE-006"
+severity: blocker
+
+## Summary
+
+total: 4
+passed: 1
+issues: 3
+pending: 0
+skipped: 0
+blocked: 0
+
+## Gaps
+
+- truth: "聊天输入、发送、历史加载、线程切换等关键交互行为与 Phase 2 基线一致。"
+  status: failed
+  reason: "User reported: POST http://localhost:2026/api/langgraph/threads/b582ef92-ee83-403a-abdf-c322d6343d31/history 500 (Internal Server Error)"
+  severity: blocker
+  test: 2
+  artifacts: []
+  missing: []
+
+- truth: "执行 frontend lint 命令时不应出现阻塞错误。"
+  status: failed
+  reason: "User reported: ✖ 39 problems (2 errors, 37 warnings); 2 errors and 1 warning potentially fixable with the --fix option."
+  severity: major
+  test: 3
+  artifacts: []
+  missing: []
+
+- truth: "前端服务可访问后，welcome-and-routing 用例可执行并产出明确结果。"
+  status: failed
+  reason: "User reported: 后端问题，接口报错；4 failed: DF-ROUTE-001, DF-ROUTE-004, DF-ROUTE-005, DF-ROUTE-006"
+  severity: blocker
+  test: 4
+  artifacts: []
+  missing: []
+