<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **New Features**
* Sessions associated with a deleted document are now automatically
updated to remove the document reference.
* **Improvements**
* Enhanced session management to better handle documents that have been
deleted.
No visible changes to the user interface; these updates improve backend
handling of session and document relationships.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **Bug Fixes**
* Improved session filtering to use the correct criteria when querying
sessions, ensuring more accurate results based on the action parameter.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **New Features**
* Introduced new API endpoints and GraphQL queries to retrieve Copilot
chat sessions by workspace, document, and pinned status, with detailed
session and message information.
* Added support for filtering and querying Copilot chat histories with
new options such as pinned status and message ordering.
* **Bug Fixes**
* Improved filtering logic for listing and retrieving chat sessions,
ensuring accurate results for workspace, document, and pinned session
queries.
* **Tests**
* Expanded and refactored test coverage for session listing, filtering,
and new query options to ensure reliability and correctness of Copilot
session retrieval.
* Updated snapshot data to reflect new session types and filtering
capabilities.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **Bug Fixes**
* Improved session forking by allowing sessions to be forked even when
no messages are provided, preventing unnecessary errors.
* Reduced unnecessary database operations by only updating messages when
there are messages to update.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Close [AI-195](https://linear.app/affine-design/issue/AI-195)
<img width="1219" alt="截屏2025-06-24 10 55 18"
src="https://github.com/user-attachments/assets/8c54ad41-2bbf-443a-a41a-9cea9aede7b4"
/>
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
- **New Features**
- Introduced a new component to render various AI stream objects within
chat messages, supporting richer content types like reasoning blocks and
tool calls.
- **Improvements**
- Enhanced chat message rendering by consolidating message properties
into a single object and simplifying component interfaces.
- Improved scrolling behavior with smooth, throttled scrolling and
better synchronization with chat status.
- Updated chat history and streaming updates to use immutable data
handling for more reliable message updates.
- Refined rendering keys and content merging for more accurate display
of streamed AI responses.
- Improved handling and display of tool results and web search/crawl
outputs.
- **Bug Fixes**
- Ensured consistent presence of attachments and streaming objects in
chat message data.
- Enhanced parsing and merging of streamed AI responses for better
message accuracy.
- **Refactor**
- Streamlined imports, component registrations, and internal message
handling for maintainability.
- Updated type definitions to support new optional message properties
and improve compatibility.
- **Style**
- Adjusted layout by moving history clear controls for a more intuitive
chat interface.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **Bug Fixes**
- Improved validation to prevent updates to sessions with action prompts
and restrict certain updates on forked sessions.
- **Tests**
- Expanded and clarified test coverage for session updates, pinning
behavior, and session type conversions, with more explicit error
handling and validation scenarios.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
