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/architect-yang/profile.md

@@ -26,5 +26,8 @@ performance_log:
   - date: 2026-05-27
     event: "W13.1: 深度审计 anthropic_plugin.cpp (497行)，6个C ABI函数零try/catch (§8违反)，response_body泄漏 + 全局指针竞态，tool_use静默丢弃。综合评级C。报告写入 agents/audits/W13.1-anthropic-audit.md"
     rating: completed
+  - date: 2026-05-27
+    event: "W15.1: 为 WORKFLOW.md §11 协作状态机设计 EXPRESS 快跳路径。定义 E1-E6 六项客观准入条件，新增 T17(快跳入口) + T18(升级回退) 两条转换规则，§11.2 图增加快跳边标注，新增 §11.2.1 完整说明。建议将 EXPRESS 作为正式快跳标签（非新增状态，避免状态爆炸）"
+    rating: completed
 current_groups: []
 ---