W15: workflow improvements — EXPRESS fast-path, audit→fix closed loop, metadata self-check (W15.1-W15.3)

- W15.1 (杨帆): Add EXPRESS fast-path to §11 state machine (T17/T18, E1-E6 conditions, escalation safety valve)
- W15.2 (王测): Add §14 audit→fix closed loop — findings-registry.md, severity-driven auto-triage, CRITICAL blocking rule
- W15.3 (胡桐): Create scripts/check_agents_metadata.py (5-check: YAML parse, rating range, group/member refs, duplicate IDs)
- Fix YAML orphan bugs in 3 profiles: devops-hu, engineer-sun, security-cao (perf_log entries outside array)
- Pre-fill findings-registry.md with 10 historical findings from W11.1/W11.7 audits

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

agents/devops-hu/profile.md

@@ -32,7 +32,6 @@ performance_log:
       顺带修复: tools_plugin.cpp 缺少前向声明、lsp_plugin.cpp 函数签名 mismatch、
       5 个插件缺少 #include <boost/json/src.hpp> (Boost 1.86 不再识别 HEADER_ONLY)。
     rating: done
-current_groups: []
   - date: 2026-05-27
     event: "W12.4 修复 build 产物路径不一致 (BUG-1)"
     detail: >
@@ -43,4 +42,14 @@ current_groups: []
       ${CMAKE_BINARY_DIR}/bin 作为防御性显式声明；删除陈旧 build/dstalk-cli/dstalk-cli.exe。
       验证: clean rebuild 后仅 build/bin/dstalk-cli.exe 存在，ctest 4/4 pass。
     rating: done
+  - date: 2026-05-27
+    event: "W15.3: 设计 agents/ 目录元数据自检机制 (scripts/check_agents_metadata.py)"
+    detail: >
+      修复自身 profile.md YAML 格式错误 (perf_log 条目被误放在 current_groups: [] 之后)。
+      创建 5 项自检: C1 YAML 解析合法性、C2 rating 值范围、C3 current_groups -> group 引用完整性、
+      C4 group members -> agent 引用完整性、C5 重复 ID 检测 + 目录名一致性。
+      首轮运行发现 engineer-sun + security-cao 的 profile.md 存在同类 YAML 错误 (各 2 条目 orphan)。
+      建议集成到 refresh_status.py 作为前置检查，并加入 WORKFLOW.md §5 CEO 自查清单。
+    rating: done
+current_groups: []
 ---