W17: close 9 audit findings — atomic pointers, SSE robustness, leak fix, verification (W17.1-W17.4)

- W17.1 (曹武): Verify F-13.3-1/2/3 all fixed by W14.1, close 3 findings (1 CRITICAL + 1 HIGH + 1 MEDIUM)
- W17.2 (赵码): Fix F-13.2-3 SSE [DONE] sentinel trimming + F-13.2-4 g_host/g_http/g_config atomic pointers in deepseek_plugin
- W17.3 (王测): Verify 4 W14 findings (F-13.1-1/4, F-13.2-1/2) + F-11.7-2 confirmed fixed, close 5 findings
- W17.4 (马奔): Fix F-13.1-2 response_body leak on error path + F-13.1-3 g_host/g_http atomic pointers in anthropic_plugin

Build 0 error, ctest 4/4 pass, metadata check clean.

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

agents/engineer-zhao/profile.md

@@ -45,3 +45,6 @@ current_groups:
   - date: 2026-05-27
     event: "W16.6: 为 W13.1/W13.2 审计报告补充 Findings Summary 小节（W13.1: 11 条发现含 3H/1M/7L，W13.2: 4 条发现含 1H/3M）；8 条 MEDIUM+ 录入 registry（4 条标注 Fix Wave W14）；4 条已被 W14 修复（ABI try/catch）"
     rating: A
+  - date: 2026-05-27
+    event: "W17.2: 修复 deepseek_plugin 2条 MEDIUM — F-13.2-3 SSE [DONE] sentinel trim后比较替代精确匹配（L208-218），F-13.2-4 g_host/g_http/g_config 改为 std::atomic load(acquire)/store(release) 保护（全文件54处访存点），编译0 error + ctest 4/4 pass"
+    rating: A-