add bilingual docs

[h-yanagawa]

Devinを使用してswitchbot関連コードにコメントを追加

examples/switchbot/main.py をスモークテストしてSyntaxには問題ないことを確認。

Documentation: Add bilingual comments to SwitchBot client

Changes

• Added English and Japanese documentation to all SwitchBot client files:
  • switchbot_base_client.py: Core API communication functionality
  • switchbot_mixin.py: Device-specific operations and controls
  • switchbot_models.py: Data models for device status and responses
  • switchbot_client.py: Main client implementation combining all components
• Follows the existing bilingual documentation style (English first, Japanese second)
• Improves code documentation for both English and Japanese-speaking developers
• Added comprehensive class and method docstrings in both languages
• Documented parameters, return types, and field descriptions bilingually

Testing

Documentation-only changes, no functional changes made.
@h-yanagawa did a smoke test on examples/switchbot/main.py

Link to Devin run

https://app.devin.ai/sessions/1d3743352e2a4add961ac653c2f54b2a

[kurain]

LGTM