fix(gui): move heavy processing from render loop to controller - gui only visualizes state

src/app_controller.py

@@ -146,6 +146,7 @@ class AppController:
   self.mma_status: str = "idle"
   self._tool_log: List[Dict[str, Any]] = []
   self._tool_stats: Dict[str, Dict[str, Any]] = {}  # {tool_name: {"count": 0, "total_time_ms": 0.0, "failures": 0}}
+  self._cached_cache_stats: Dict[str, Any] = {}  # Pre-computed cache stats for GUI
   self._comms_log: List[Dict[str, Any]] = []
   self.session_usage: Dict[str, Any] = {
    "input_tokens": 0,
@@ -1740,6 +1741,17 @@ class AppController:
    count = cache_stats.get("cache_count", 0)
    size_bytes = cache_stats.get("total_size_bytes", 0)
    self._gemini_cache_text = f"Gemini Caches: {count} ({size_bytes / 1024:.1f} KB)"
+  self._update_cached_stats()
+
+ def _update_cached_stats(self) -> None:
+  import ai_client
+  self._cached_cache_stats = ai_client.get_gemini_cache_stats()
+  self._cached_tool_stats = dict(self._tool_stats)
+
+ def clear_cache(self) -> None:
+  import ai_client
+  ai_client.cleanup()
+  self._update_cached_stats()
 
  def _flush_to_project(self) -> None:
   proj = self.project