test(audit): fix critical test suite deadlocks and write exhaustive architectural report

- Fix 'Triple Bingo' history synchronization explosion during streaming

- Implement stateless event buffering in ApiHookClient to prevent dropped events

- Ensure 'tool_execution' events emit consistently across all LLM providers

- Add hard timeouts to all background thread wait() conditions

- Add thorough teardown cleanup to conftest.py's reset_ai_client fixture

- Write highly detailed report_gemini.md exposing asyncio lifecycle flaws

.claude/settings.local.json

@@ -11,7 +11,8 @@
       "mcp__manual-slop__py_check_syntax",
       "mcp__manual-slop__get_file_summary",
       "mcp__manual-slop__get_tree",
-      "mcp__manual-slop__list_directory"
+      "mcp__manual-slop__list_directory",
+      "mcp__manual-slop__py_get_skeleton"
     ]
   },
   "enableAllProjectMcpServers": true,