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## Summary by CodeRabbit
* **Tests**
* Updated test cases to use a new test asset describing AFFiNE.
* Adjusted assertions to check for "AFFiNE" in results instead of
previous keywords.
* Separated and refined the "Continue writing" test for clearer
validation.
* Improved assertion messages for clarity.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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## Summary by CodeRabbit
* **New Features**
* Added support for managing "blobs" in Copilot context, including
adding and removing blobs via new GraphQL mutations and UI fields.
* Introduced tracking and querying of blob embeddings within workspaces,
enabling search and similarity matching for blob content.
* Extended Copilot context and workspace APIs, schema, and UI to display
and manage blobs alongside existing documents and files.
* **Bug Fixes**
* Updated context and embedding status logic to handle blobs, ensuring
accurate status reporting and embedding management.
* **Tests**
* Added and updated test cases and snapshots to cover blob embedding
insertion, matching, and removal scenarios.
* **Documentation**
* Updated GraphQL schema and TypeScript types to reflect new
blob-related fields and mutations.
* **Chores**
* Refactored and cleaned up code to support new blob entity and
embedding logic, including renaming and updating internal methods and
types.
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fix AI-355
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## Summary by CodeRabbit
* **New Features**
* Added support for uploading a single file as an attachment when
creating chat messages, in addition to existing multiple file uploads.
* **Tests**
* Expanded test coverage to verify message creation with both single and
multiple file attachments.
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#### PR Dependency Tree
* **PR #13202** 👈
This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)
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## Summary by CodeRabbit
* **New Features**
* Improved the "Transcript audio" text action by updating its default AI
model to "gemini-2.5-pro" for enhanced performance.
* Enhanced audio transcription accuracy by refining audio content
handling with a more specific audio format.
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---------
Co-authored-by: DarkSky <darksky2048@gmail.com>

#### PR Dependency Tree
* **PR #13029** 👈
This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)
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## Summary by CodeRabbit
* **New Features**
* Added an option in user settings to enable or disable email
notifications for comments on your documents.
* Updated the user interface to include a toggle for comment email
notifications.
* Extended GraphQL queries and schema to support the new comment email
notification setting.
* **Localization**
* Added new English translations for comment email notification
settings.
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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.
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Close [AI-193](https://linear.app/affine-design/issue/AI-193)
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## Summary by CodeRabbit
- **New Features**
- Added support for streaming structured AI chat responses as objects,
enabling richer and more interactive chat experiences.
- Chat messages now include a new field displaying structured stream
objects, such as reasoning steps, text deltas, tool calls, and tool
results.
- GraphQL APIs and queries updated to expose these structured streaming
objects in chat histories.
- Introduced a new streaming chat endpoint for object-based responses.
- **Bug Fixes**
- Improved error handling for streaming responses to ensure more robust
and informative error reporting.
- **Refactor**
- Centralized and streamlined session preparation and streaming logic
for AI chat providers.
- Unified streaming setup across multiple AI model providers.
- **Tests**
- Extended test coverage for streaming object responses to ensure
reliability and correctness.
- **Documentation**
- Updated type definitions and schemas to reflect new streaming object
capabilities in both backend and frontend code.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Co-authored-by: DarkSky <25152247+darkskygit@users.noreply.github.com>
Close [AI-86](https://linear.app/affine-design/issue/AI-86)
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Improved chat session forking to allow creating a fork without specifying the latest message, enabling more flexible session management.
- **Bug Fixes**
- Forking a chat session with an invalid latest message ID now correctly returns an error.
- **Tests**
- Added and updated test cases to cover session forking with missing or invalid latest message IDs, ensuring robust behavior in these scenarios.
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