Close [BS-3391](https://linear.app/affine-design/issue/BS-3391/无法从note中拖出embed-synced-doc到白板)
### Before
can not hover on drag handle
https://github.com/user-attachments/assets/5596538e-e922-4d7f-8188-b719b234f3ee
### After
can hover on drag handle
https://github.com/user-attachments/assets/855743ec-7601-48a8-8453-cd5aa395bd06
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **Bug Fixes**
- Improved detection of hovering over notes in edgeless mode, ensuring the drag handle appears correctly when hovering on the background of a selected note.
- Enhanced background style updates for edgeless notes, providing more accurate visual feedback.
- **Tests**
- Added a test to verify that the drag handle is visible when hovering over the background of a selected edgeless note.
- Updated undo/redo tests to improve accuracy of background color evaluation.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Close [BS-3507](https://linear.app/affine-design/issue/BS-3507/edgeless-text-颜色无法-undoredo)
Close [BS-3426](https://linear.app/affine-design/issue/BS-3426/frame-修改背景色后不能撤销)
This PR fixes the issue where the color change of edgeless blocks could not be undone/redone, including notes, edgeless-text, and frames. It also addresses the problem of a tiny shape being unexpectedly retained on the canvas. The key changes are:
- Removal of `transact` from the `pop` method of edgeless elements.
- Refactoring of `onPickColor` for all edgeless elements and blocks to better control the lifecycle of custom color property changes.
- Addition of the missing custom background color feature for notes.
- Addition of undo/redo color tests for notes, frames, and edgeless-text.
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Added undo and redo support for color changes in frames, notes, and text blocks, allowing users to revert or reapply background and text color modifications.
- **Bug Fixes**
- Improved reliability of color picker interactions, ensuring consistent state management and transactional updates during color changes.
- **Tests**
- Introduced new end-to-end tests to verify undo/redo functionality for color changes in frames, notes, and text blocks.
- **Refactor**
- Streamlined color picker event handling for better maintainability and consistency across toolbars and style panels.
- Updated style panel structure and event handling for improved interaction and state management.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!-- 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 -->
L-Sun
