Arcade-ai

Changes in this release:
- feat: Refactored config system to use `credentials.yaml` instead of `arcade.toml` (https://github.com/ArcadeAI/arcade-ai/pull/116)
- feat: Added `langchain-arcade` package for easy integration with LangChain/LangGraph
- fix: Hang when iterating tools using `client.tools.list` (https://github.com/ArcadeAI/arcade-ai/pull/120)
- cleanup: Remove `arcade.core` from all user-facing examples (https://github.com/ArcadeAI/arcade-ai/pull/121)

Changes in this release:
* Replaced arcade.client with arcadepy
* Improved Engine config lookup
* Fixes for arcade show

✨ New features:
- Auto-open a browser when the user needs to auth, instead of clicking a link

🐛 Bug fixes:
- Debug messages in `arcade chat --debug/-D` are invisible on some shells (fixed colors)
- If auto-opening a browser fails, print a URL as a backup
- Fixed the default dependency specification for new toolkit packages in `arcade new`

Changes in this release:

Changes in this release:

Changes in this release: