<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Introduced a tooltip component, making it available throughout the
application.
* **Refactor**
* Centralized tooltip initialization and registration for improved
consistency.
* Updated imports to use the new tooltip module, streamlining component
usage.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Close [AI-240
<img width="533" alt="截屏2025-07-04 18 04 39"
src="https://github.com/user-attachments/assets/726a54b6-3bdb-4e70-9cda-4671d83ae5bd"
/>
](https://linear.app/affine-design/issue/AI-240)
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Enhanced chat toolbar and session history with the ability to open
specific documents directly from the chat interface.
* Added tooltips and improved click handling for clearer user
interactions in chat session and document lists.
* **Bug Fixes**
* Prevented redundant actions when attempting to open already active
sessions or documents.
* **Style**
* Improved tooltip formatting and visual styling for error messages and
tooltips.
* Refined hover effects and layout in chat session history for better
clarity.
* **Refactor**
* Updated tooltip configuration for more precise positioning and
behavior.
* **Chores**
* Minor updates to property defaults for tooltips and chat panel
components.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Co-authored-by: fengmk2 <fengmk2@gmail.com>
### Changed
- Added support for changing the preview offset during dragging.
- Fixed the preview rendering for embed block and surface-ref block
- Resolved an issue where the host element might be reused in certain cases, which could cause unexpected behavior
- Moved viewport-related constants and methods to a more appropriate location