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/audits/findings-registry.md

@@ -0,0 +1,38 @@
+# Audit Findings Registry
+
+> **维护人**: grp-quality-core (王测)
+> **格式定义**: 见 `agents/WORKFLOW.md` §14.2
+> **最后更新**: 2026-05-27 (W15.2 初始化，从 W11.1/W11.7 审计报告提取)
+
+---
+
+## Open Findings
+
+| ID | Severity | Source | Title | Status | Assigned To | Fix Wave | Verified By |
+|----|----------|--------|-------|--------|-------------|----------|-------------|
+| F-11.7-1 | CRITICAL | [W11.7-destructive-test.md](W11.7-destructive-test.md) | `build/bin/dstalk-cli.exe` corrupt copy (MD5 d8e8c92b vs 803ca2ea); all commands treated as AI prompt, exit code always 3 | OPEN | — | — | — |
+| F-11.7-2 | MEDIUM | [W11.7-destructive-test.md](W11.7-destructive-test.md) | `/clear` reports [OK] even when session unavailable (g_session==null) — main.cpp:168-172 | OPEN | — | — | — |
+| F-11.7-3 | LOW | [W11.7-destructive-test.md](W11.7-destructive-test.md) | `/context` silent no-output when session unavailable; no else branch — main.cpp:175-185 | OPEN | — | — | — |
+| F-11.7-4 | LOW | [W11.7-destructive-test.md](W11.7-destructive-test.md) | `/file write` (no args) matched as unknown command instead of usage hint | OPEN | — | — | — |
+| F-11.1-1 | HIGH | [W11.1-context-audit.md](W11.1-context-audit.md) | C++ exception (`std::bad_alloc`)穿越ABI边界，违反plugin-abi §5.3；trim_impl (L114-226) 无try/catch → std::terminate() | OPEN | — | — | — |
+| F-11.1-2 | HIGH | [W11.1-context-audit.md](W11.1-context-audit.md) | strdup返回值未检查，OOM时静默失败+泄漏；L138-141/L219-222 循环内4次strdup无nullptr检查 | OPEN | — | — | — |
+| F-11.1-3 | MEDIUM | [W11.1-context-audit.md](W11.1-context-audit.md) | context_set_max_tokens死API，g_max_tokens从未被读取（L21/L243-244） | OPEN | — | — | — |
+| F-11.1-4 | LOW | [W11.1-context-audit.md](W11.1-context-audit.md) | UTF-8解码无越界保护（L42-64, L96-104），多字节序列假设后续字节有效 | OPEN | — | — | — |
+| F-11.1-5 | LOW | [W11.1-context-audit.md](W11.1-context-audit.md) | token计数逻辑重复（L34-68 vs L91-106 ~90%重复） | OPEN | — | — | — |
+| F-11.1-6 | LOW | [W11.1-context-audit.md](W11.1-context-audit.md) | 0xC0/0xC1过短编码未识别（L52, L100），仅影响token估算计数 | OPEN | — | — | — |
+
+---
+
+## Closed Findings
+
+| ID | Severity | Source | Title | Closed Date | Fix Wave | Verified By |
+|----|----------|--------|-------|-------------|----------|-------------|
+| — | — | — | 暂无已关闭发现 | — | — | — |
+
+---
+
+## Change Log
+
+| Date | Change | Author |
+|------|--------|--------|
+| 2026-05-27 | W15.2 初始化，从 W11.1/W11.7 提取 10 条发现 | 王测 (qa-wang) |