1. Receive user request (design brief, command, etc.).
2. Analyze the request to determine user intent (poster design or direct tool execution).
3. Route to `article-to-cover` for poster design workflows or `meitu-tools` for direct CLI execution.
4. If routing to `meitu-tools`, execute the command through `meitu-tools/scripts/run_command.js`.
5. Handle runtime bootstrap of `meitu-ai` with lazy updates.
6. If bootstrap fails, guide the user through manual install/repair steps.
7. Return actionable guidance and error handling with `user_hint` and `next_action`.