fix: 删除demo模块蓝图创建

src/backend/app/__init__.py

@@ -42,14 +42,12 @@ def create_app(config_name=None):
     from app.controllers.task_controller import task_bp
     from app.controllers.image_controller import image_bp
     from app.controllers.admin_controller import admin_bp
-    from app.controllers.demo_controller import demo_bp
     
     app.register_blueprint(auth_bp, url_prefix='/api/auth')
     app.register_blueprint(user_bp, url_prefix='/api/user')
     app.register_blueprint(task_bp, url_prefix='/api/task')
     app.register_blueprint(image_bp, url_prefix='/api/image')
     app.register_blueprint(admin_bp, url_prefix='/api/admin')
-    app.register_blueprint(demo_bp, url_prefix='/api/demo')
     
     # 注册错误处理器
     @app.errorhandler(404)