This PR addresses issue Fixes: #13805 (cross-document copy/paste not
working).
Locally verified that:
- Copy → paste between two documents now works consistently.
- Clipboard snapshot payload remains intact when encoded/decoded.
- External paste (e.g., to Notepad or browser text field) functions
correctly.
E2E tests for clipboard behavior were added, but Playwright browsers
could not be installed in the container (`HTTP 403` from CDN).
Manual verification confirms the fix works as intended.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **Tests**
* Added cross-document clipboard regression tests for copy/paste between
documents, external clipboard validation, and multi-block copy;
duplicate test entries noted.
* **Chores**
* Minor formatting and whitespace cleanup around clipboard handling.
* Improved error handling in paste flows.
* Standardized HTML formatting for clipboard payload attributes.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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## Summary by CodeRabbit
* **New Features**
* Copilot now defaults to the updated Claude Sonnet 4.5 model across
experiences for improved responses.
* **Chores**
* Consolidated available Anthropic models, removing older Sonnet 3.x
variants and standardizing Sonnet 4/4.5 options.
* Updated configuration defaults and schema mappings to reference the
new Sonnet 4.5 model.
* **Tests**
* Updated unit and end-to-end tests to reference the new model to ensure
consistent behavior.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Closes: [BS-3586](https://linear.app/affine-design/issue/BS-3586/复制白板图片，然后粘贴到-page，图片失败)
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Copying a single selected image in edgeless mode now places the image directly onto the system clipboard as a native image blob for smoother pasting.
- **Bug Fixes**
- Enhanced clipboard handling to better manage image and text data inclusion, with improved fallback for snapshot HTML.
- **Tests**
- Added an end-to-end test verifying image copy-paste functionality between edgeless and page editor modes.
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<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **Refactor**
- Unified internal data access by replacing all references from `doc` to `store` across all components, blocks, widgets, and utilities. This affects how readonly state, block operations, and service retrieval are handled throughout the application.
- **Tests**
- Updated all test utilities and test cases to use `store` instead of `doc` for document-related operations.
- **Chores**
- Updated context providers and property names to reflect the change from `doc` to `store` for improved consistency and maintainability.
No user-facing features or behaviors have changed.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
### TL;DR
Prevent pasting content when a document is in readonly mode.
### What changed?
Added a check in the `PageClipboard` class to prevent pasting operations when the document is in readonly mode. The function now returns early if `this.std.store.readonly` is true, preventing any clipboard operations from being executed.
### How to test?
1. Open a document and add some content
2. Set the document to readonly mode: `document.querySelector('affine-page-root')!.doc.readonly = true`
3. Try to paste content into the document using:
- Regular paste operation
- Keyboard shortcut (Ctrl+V/Cmd+V)
4. Verify that no content is pasted and the document remains unchanged
5. Set the document back to editable mode and confirm pasting works again
### Why make this change?
This change ensures that documents in readonly mode maintain their integrity by preventing unintended modifications through clipboard operations. This is consistent with the expected behavior of readonly documents, where users should not be able to modify content through any means.
Close [BS-3029](https://linear.app/affine-design/issue/BS-3029/frame-里面的-shape-没办法进入文本编辑模式)
Close [BS-3082](https://linear.app/affine-design/issue/BS-3082/按s切换至shape工具，在白板上点击会创建两个shape)
Close [BS-3091](https://linear.app/affine-design/issue/BS-3082/按s切换至shape工具，在白板上点击会创建两个shape)
## Fix Shape Tool Issues
This PR addresses several issues with the shape and mindmap tools functionality in the editor:
1. **Fix text editing after mode switching**: Resolves an issue where users couldn't edit text in shapes after switching editor modes. The fix ensures the edgeless block is properly retrieved when double-clicking on a shape.
2. **Improve tool switching behavior**: Fixes issues with tool overlays not showing or being repeated when switching between tools. This includes:
- Properly handling tool overlay visibility
- Ensuring only one tool is active at a time when using keyboard shortcuts
- Adding proper cleanup when switching tools
3. **Add comprehensive tests**: Adds new test cases to verify:
- Shape creation with keyboard shortcuts
- Shape text editing after mode switching
- Tool switching behavior with keyboard shortcuts
Kandula Ramesh Kumar