fix msg routing bug, use message class

tests/metagpt/roles/di/run_engineer2.py

@@ -3,9 +3,7 @@ import asyncio
 from metagpt.roles.di.engineer2 import Engineer2
 
 DESIGN_DOC_2048 = '{"Implementation approach":"We will use the Pygame library to implement the 2048 game logic and user interface. Pygame is a set of Python modules designed for writing video games, which will help us create a responsive and visually appealing UI. For the mobile responsiveness, we will ensure that the game scales appropriately on different screen sizes. We will also use the Pygame GUI library to create buttons for restarting the game and choosing difficulty levels.","File list":["main.py","game.py","ui.py"],"Data structures and interfaces":"\\nclassDiagram\\n    class Game {\\n        -grid: list[list[int]]\\n        -score: int\\n        +__init__()\\n        +move(direction: str) bool\\n        +merge() bool\\n        +spawn_tile() None\\n        +is_game_over() bool\\n        +reset() None\\n    }\\n    class UI {\\n        -game: Game\\n        +__init__(game: Game)\\n        +draw_grid() None\\n        +draw_score() None\\n        +draw_buttons() None\\n        +handle_input() None\\n    }\\n    class Main {\\n        -ui: UI\\n        +main() None\\n    }\\n    Main --> UI\\n    UI --> Game\\n","Program call flow":"\\nsequenceDiagram\\n    participant M as Main\\n    participant U as UI\\n    participant G as Game\\n    M->>U: __init__(game)\\n    U->>G: __init__()\\n    M->>U: draw_grid()\\n    U->>G: move(direction)\\n    G-->>U: return bool\\n    U->>G: merge()\\n    G-->>U: return bool\\n    U->>G: spawn_tile()\\n    G-->>U: return None\\n    U->>G: is_game_over()\\n    G-->>U: return bool\\n    U->>G: reset()\\n    G-->>U: return None\\n    M->>U: draw_score()\\n    M->>U: draw_buttons()\\n    M->>U: handle_input()\\n","Anything UNCLEAR":"Clarification needed on the specific design elements for the UI to ensure it meets the \'beautiful\' requirement. Additionally, we need to confirm the exact difficulty levels and how they should affect the game mechanics."}'
-
 TASK_DOC_2048 = '{"Required Python packages":["pygame==2.0.1","pygame_gui==0.5.7"],"Required Other language third-party packages":["No third-party dependencies required"],"Logic Analysis":[["game.py","Contains Game class with methods: __init__, move, merge, spawn_tile, is_game_over, reset"],["ui.py","Contains UI class with methods: __init__, draw_grid, draw_score, draw_buttons, handle_input"],["main.py","Contains Main class with method: main, initializes UI and Game"]],"Task list":["game.py","ui.py","main.py"],"Full API spec":"","Shared Knowledge":"`game.py` contains core game logic and state management. `ui.py` handles all user interface elements and interactions. `main.py` serves as the entry point to initialize and run the game.","Anything UNCLEAR":"Clarification needed on the specific design elements for the UI to ensure it meets the \'beautiful\' requirement. Additionally, we need to confirm the exact difficulty levels and how they should affect the game mechanics."}'
-
 DESIGN_DOC_SNAKE = """
 {
     "Implementation approach": "We will use the Pygame library to create the CLI-based snake game. Pygame is a set of Python modules designed for writing video games, which will help us handle graphics, sound, and input. The game will be structured into different modules to handle the main game loop, snake movement, food generation, collision detection, and user interface. We will ensure the game is engaging and responsive by optimizing the game loop and input handling. The score display and different speed levels will be implemented to enhance the user experience.",