Closes: [BS-3438](https://linear.app/affine-design/issue/BS-3438/attachment-embed-view-中的-status-组件)
Closes: [BS-3447](https://linear.app/affine-design/issue/BS-3447/触发-litportal-re-render)
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Introduced a visual status indicator for embedded attachments with reload capability.
- Added a new resource status component to display error messages and reload actions.
- **Improvements**
- Enhanced attachment rendering flow with reactive state and unified embed handling.
- Simplified resource state and blob URL lifecycle management.
- Added status visibility flags for PDF and video embeds.
- **Bug Fixes**
- Improved error handling and refresh support for embedded content including PDFs, videos, and audio.
- **Style**
- Added styles for the attachment embed status indicator positioning.
- **Refactor**
- Streamlined attachment and resource controller implementations for better maintainability.
- **Tests**
- Added end-to-end test verifying PDF viewer reload and re-rendering in embed mode.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Related to: [BS-3143](https://linear.app/affine-design/issue/BS-3143/更新-loading-和错误样式)
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Introduced a unified resource controller for managing image and attachment resources, providing improved loading, error, and state handling.
- Added a visual loading indicator overlay to image blocks for better feedback during image loading.
- **Improvements**
- Simplified and centralized image and attachment state management, reducing redundant properties and manual state tracking.
- Updated fallback UI for image blocks with clearer titles, descriptions, and improved layout.
- Enhanced batch image block creation and download handling for improved efficiency.
- Refined image block accessibility with improved alt text and streamlined rendering logic.
- Centralized target model selection for image insertion in AI actions.
- Reordered CSS declarations without affecting styling.
- Improved reactive state tracking for blob upload/download operations in mock server.
- **Bug Fixes**
- Improved cleanup of object URLs to prevent resource leaks.
- Adjusted toolbar logic to more accurately reflect available actions based on image state.
- **Tests**
- Updated end-to-end tests to match new UI text and behaviors for image loading and error states.
- **Chores**
- Refactored internal logic and updated comments for clarity and maintainability.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Closes: [BS-3379](https://linear.app/affine-design/issue/BS-3379/恢复在-loading-或错误时-attachments-的背景色)
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **Style**
- Updated the background color of attachment cards in loading and error states for a more consistent appearance.
- **Bug Fixes**
- Improved the handling and display of loading and uploading states for attachment cards to better reflect their current status.
- **Chores**
- Added new workspace dependencies and project references to enhance synchronization capabilities across related modules.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Closes: [BS-3143](https://linear.app/affine-design/issue/BS-3143/更新-attachment-错误样式)
Closes: [BS-3341](https://linear.app/affine-design/issue/BS-3341/attachment-select状态ui调整)
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Improved attachment block with unified reactive state handling for loading, errors, and downloads.
- Enhanced card layouts with modular rendering and dynamic buttons based on state.
- **Bug Fixes**
- Fixed UI state for "Embed view" action, now correctly disabled when not embedded.
- Resolved attachment card styling issues and text overflow with new utility classes.
- **Refactor**
- Streamlined attachment block rendering and state management for better performance and maintainability.
- Updated toolbar configuration for consistent parameter naming.
- Simplified embedded and open methods for improved clarity.
- Made internal functions private to reduce exported API surface.
- **Chores**
- Removed unused icon export and legacy upload tracking functions.
- Updated attachment utilities to use reactive state, added data refresh, and improved error handling.
- Refined image dimension handling for consistent resizing behavior.
- Improved test selectors to target focused attachment containers for better reliability.
- Refactored CSS to separate container and card styling and adopt theme-based colors consistently.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
fundon