#### PR Dependency Tree
* **PR #14505** 👈
This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)
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## Summary by CodeRabbit
* **Improvements**
* Better image-proxy detection to avoid double-proxying already proxied
images.
* Improved runtime image proxy configuration so images load consistently
across deployments.
* More robust image URL handling for optimized image loading and fewer
redundant requests.
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## Summary by CodeRabbit
- **New Features**
- Improved resource management by introducing explicit cleanup for various middleware components, ensuring that resources are properly released when no longer needed.
- **Refactor**
- Updated middleware logic to support cleanup functions, enhancing the stability and performance of the application by preventing potential memory leaks.
- **Chores**
- Enhanced lifecycle management in core systems to automatically dispose of resources when appropriate.
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Closes: [BS-3491](https://linear.app/affine-design/issue/BS-3491/支持-callout-导出成-vitepress-文档站支持的-markdown-格式)
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## Summary by CodeRabbit
- **New Features**
- Added support for exporting callout blocks in both GFM and Admonition markdown styles, including configurable admonition types and custom titles.
- Introduced middleware to customize callout export options for markdown serialization.
- **Tests**
- Enhanced test coverage for callout markdown export, including scenarios with and without export middleware for different styles and content structures.
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Closes: [BS-3385](https://linear.app/affine-design/issue/BS-3385/markdown类型的导入,支持media文件和md文件不在同目录的情况)
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## Summary by CodeRabbit
- **New Features**
- Added utility functions to resolve and normalize image file paths in markdown and HTML imports.
- Introduced middleware to provide full file path context during file import and transformation.
- Added new types for improved asset and file management in zip imports.
- **Refactor**
- Centralized and simplified image processing logic across HTML, Markdown, and Notion HTML adapters for improved maintainability.
- Enhanced type safety and clarity in file and asset handling during zip imports.
- **Tests**
- Added comprehensive tests for image file path resolution utility.
- **Documentation**
- Improved inline code comments explaining file path resolution logic.
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## Summary by CodeRabbit
- **Refactor**
- Improved the internal structure and clarity of ID handling during import processes, leading to more maintainable and modular code. No changes to user-facing functionality.
- **Chores**
- Enhanced type definitions for import events to improve code readability and maintainability. No impact on end-user experience.
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## Summary by CodeRabbit
- **New Features**
- Images and icons in bookmark cards are now loaded through an image proxy for improved reliability and consistency.
- Embed blocks for GitHub, Loom, and YouTube now display banner and creator images via an image proxy service for enhanced image loading.
- **Refactor**
- Simplified backend URL handling and proxy logic for images, resulting in more efficient processing and reduced complexity.
- Consolidated image proxy middleware and services into a shared adapter module for streamlined imports and improved maintainability.
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### TL;DR
Moved image proxy middleware and adapter extensions to their respective packages and introduced a new spec provider for adapter registration.
### What changed?
- Relocated `defaultImageProxyMiddleware` from blocks to `@blocksuite/affine-block-image`
- Moved `PresentTool` from fragment-frame-panel to block-frame
- Created new adapter extension specs for HTML, Markdown, and Notion HTML
- Introduced a spec provider pattern for adapter registration
- Removed direct transformer references from RootService
- Updated imports across affected files to use new locations
### How to test?
1. Verify image proxy functionality works in exports and imports
2. Test HTML, Markdown, and Notion HTML adapters still function correctly
3. Confirm presentation mode works with the relocated PresentTool
4. Check that all file import/export operations continue to work as expected
### Why make this change?
This reorganization improves code modularity by placing features in their logical packages and introduces a more maintainable pattern for adapter registration. The spec provider pattern makes it easier to manage and extend adapter functionality while reducing coupling between components.