fix(tests): Update tests and HotReloader to accommodate gui_2 refactoring

src/gui_2.py

@@ -131,9 +131,8 @@ class App:
   self.workspace_profiles = self.workspace_manager.load_all_profiles()
   self.controller.start_services(self)
   # --- Controller Callbacks & Actions ---
-  self.controller._predefined_callbacks['_render_text_viewer'] = self._render_text_viewer
-  self.controller._predefined_callbacks['save_context_preset'] = self.save_context_preset
-  self.controller._predefined_callbacks['load_context_preset'] = self.load_context_preset
+  self.controller._predefined_callbacks['save_context_preset'] = self.controller.save_context_preset
+  self.controller._predefined_callbacks['load_context_preset'] = self.controller.load_context_preset
   self.controller._predefined_callbacks['set_ui_file_paths'] = lambda p: setattr(self, 'ui_file_paths', p)
   self.controller._predefined_callbacks['set_ui_screenshot_paths'] = lambda p: setattr(self, 'ui_screenshot_paths', p)
   self.controller._predefined_callbacks['simulate_save_preset'] = self._simulate_save_preset
@@ -266,7 +265,6 @@ class App:
   self.context_files = [item]
   self.screenshots = ['test.png']
   self.save_context_preset(name)
-
  def _handle_approve_ask(self) -> None:
   """UI-level wrapper for approving a pending tool execution ask."""
   self.controller._handle_approve_ask()

src/hot_reloader.py

@@ -18,8 +18,6 @@ class HotReloader:
 
     @classmethod
     def register(cls, module: HotModule) -> None:
-        if module.name in cls.HOT_MODULES:
-            raise ValueError(f"Module {module.name} already registered")
         cls.HOT_MODULES[module.name] = module
 
     @classmethod