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_visual_mma.py

@@ -68,3 +68,11 @@ def test_visual_mma_components(live_gui):
   assert tickets[1]['status'] == "running"
 
  print("Visual MMA component verification PASSED.")
+ 
+ # Clean up the pending modal to prevent polluting subsequent tests
+ print("Cleaning up pending MMA modal...")
+ client.post_gui({
+  "action": "click",
+  "item": "btn_approve_mma_step"
+ })
+ time.sleep(0.5)