conductor(checkpoint): Phase 3: AI Settings and Tools Simulation complete

gui_2.py

@@ -267,6 +267,8 @@ class App:
             'ai_status': 'ai_status',
             'ai_response': 'ai_response',
             'active_discussion': 'active_discussion',
+            'current_provider': 'current_provider',
+            'current_model': 'current_model',
             'token_budget_pct': '_token_budget_pct',
             'token_budget_label': '_token_budget_label'
         }
@@ -505,6 +507,9 @@ class App:
                     if item in self._settable_fields:
                         attr_name = self._settable_fields[item]
                         setattr(self, attr_name, value)
+                        if item in ["current_provider", "current_model"]:
+                            ai_client.set_provider(self.current_provider, self.current_model)
+                            ai_client.reset_session()
 
                 elif action == "click":
                     item = task.get("item")