feat(logs): Implement Diagnostic Tab and clean up discussion history

src/app_controller.py

@@ -130,7 +130,7 @@ class AppController:
  PROVIDERS: list[str] = ["gemini", "anthropic", "gemini_cli", "deepseek", "minimax"]
 
  def __init__(self):
- # Initialize locks first to avoid initialization order issues
+  # Initialize locks first to avoid initialization order issues
   self._send_thread_lock: threading.Lock = threading.Lock()
   self._disc_entries_lock: threading.Lock = threading.Lock()
   self._pending_comms_lock: threading.Lock = threading.Lock()
@@ -297,6 +297,7 @@ class AppController:
   self._inject_mode: str = "skeleton"
   self._inject_preview: str = ""
   self._show_inject_modal: bool = False
+  self.diagnostic_log: List[Dict[str, Any]] = []
   self._settable_fields: Dict[str, str] = {
    'ai_input': 'ui_ai_input',
    'project_git_dir': 'ui_project_git_dir',
@@ -798,7 +799,6 @@ class AppController:
    "Tool Calls": False,
    "Theme": True,
    "Log Management": False,
-   "Diagnostics": False,
   }
   saved = self.config.get("gui", {}).get("show_windows", {})
   self.show_windows = {k: saved.get(k, v) for k, v in _default_windows.items()}
@@ -1212,13 +1212,11 @@ class AppController:
     self._api_event_queue.append({"type": event_name, "payload": payload})
 
  def _on_performance_alert(self, message: str) -> None:
-  alert_text = f"[PERFORMANCE ALERT] {message}. Please consider optimizing recent changes or reducing load."
-  with self._pending_history_adds_lock:
-   self._pending_history_adds.append({
-     "role": "System",
-     "content": alert_text,
-     "ts": project_manager.now_ts()
-    })
+  self.diagnostic_log.append({
+    "ts": project_manager.now_ts(),
+    "message": message,
+    "type": "performance"
+   })
 
  def _confirm_and_run(self, script: str, base_dir: str, qa_callback: Optional[Callable[[str], str]] = None, patch_callback: Optional[Callable[[str, str], Optional[str]]] = None) -> Optional[str]:
   sys.stderr.write(f"[DEBUG] _confirm_and_run called. test_hooks={self.test_hooks_enabled}, manual_approve={getattr(self, 'ui_manual_approve', False)}\n")