fix(mcp): properly initialize preset_managers before refresh

_load_active_project() now creates preset_manager and tool_preset_manager
before calling _refresh_from_project(), which needs them

src/app_controller.py

@@ -1544,6 +1544,9 @@ class AppController:
    self.active_project_path = fallback_path
    if fallback_path not in self.project_paths:
     self.project_paths.append(fallback_path)
+  self.preset_manager = presets.PresetManager(Path(self.active_project_path).parent if self.active_project_path else None)
+  self.tool_preset_manager = tool_presets.ToolPresetManager(Path(self.active_project_path).parent if self.active_project_path else None)
+  self._refresh_from_project()
   self._configure_mcp_for_project()
 
  def _prune_old_logs(self) -> None: