stage.py:
- Add StageProcessResult type alias for better type checking
- Change process method signature for better compatibility
respond/stage.py & result_decorate/stage.py:
- Improve type annotations and code structure
content_safety_check/stage.py:
- Add better type handling
agent_sub_stages (internal.py, third_party.py):
- Improve type annotations for better code quality
Other pipeline stages:
- Minor improvements to type annotations