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

tests/test_gemini_cli_integration.py

@@ -13,7 +13,8 @@ def test_gemini_cli_full_integration(live_gui: Any) -> None:
  client = ApiHookClient("http://127.0.0.1:8999")
  # 0. Reset session and enable history
  client.click("btn_reset")
- time.sleep(1.5)
+ time.sleep(1.0)
+
  client.set_value("auto_add_history", True)
  client.set_value("manual_approve", True)
  # Switch to manual_slop project explicitly
@@ -80,7 +81,8 @@ def test_gemini_cli_rejection_and_history(live_gui: Any) -> None:
  client = ApiHookClient("http://127.0.0.1:8999")
  # 0. Reset session
  client.click("btn_reset")
- time.sleep(1.5)
+ time.sleep(1.0)
+
  client.set_value("auto_add_history", True)
  client.set_value("manual_approve", True)
  client.select_list_item("proj_files", "manual_slop")