#### PR Dependency Tree
* **PR #13034** 👈
This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)
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## Summary by CodeRabbit
* **Refactor**
* Removed the comment feature flag from the application.
* The ability to enable comments now depends solely on server
configuration, not on a feature flag.
* **Chores**
* Cleaned up related feature flag definitions and internal logic for
comment enablement.
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Co-authored-by: fengmk2 <fengmk2@gmail.com>
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## Summary by CodeRabbit
* **New Features**
* Introduced a full-featured document comment system with sidebar for
viewing, filtering, replying, resolving, and managing comments and
replies.
* Added a rich text comment editor supporting editable and read-only
modes.
* Enabled comment-based navigation and highlighting within documents.
* Integrated comment functionality into the workspace sidebar (excluding
local workspaces).
* Added internationalization support and new UI strings for comment
features.
* Added new feature flag `enable_comment` for toggling comment
functionality.
* Enhanced editor focus to support comment-related selections.
* Added snapshot and store helpers for comment content management.
* Implemented backend GraphQL support for comment and reply operations.
* Added services for comment entity management and comment panel
behavior.
* Extended comment configuration to support optional framework
providers.
* Added preview generation from user selections when creating comments.
* Enabled automatic sidebar opening on new pending comments.
* Added comment-related query parameter support for navigation.
* Included inline comment module exports for integration.
* Improved comment provider implementation with full lifecycle
management and UI integration.
* Added comment highlight state tracking and refined selection handling
in inline comments.
* **Style**
* Added comprehensive styles for the comment editor and sidebar
components.
* **Chores**
* Updated language completeness percentages for multiple locales.
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Co-authored-by: L-Sun <zover.v@gmail.com>
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## Summary by CodeRabbit
- **Bug Fixes**
- Improved code block preview rendering to only display the preview when
appropriate, preventing unwanted previews.
- **Refactor**
- Simplified the HTML preview system by always using a secure
iframe-based approach and removing the WebContainer integration.
- Updated iframe permissions and content delivery for enhanced security
and compatibility.
- **Chores**
- Removed the "Enable Web Container" feature flag and all related
internal logic.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
#### PR Dependency Tree
* **PR #12848** 👈
This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **New Features**
- Introduced a feature flag to enable or disable web container
functionality for code block previews.
- **Improvements**
- Code block HTML previews now support an alternative rendering method
based on the new feature flag, enhancing flexibility.
- **Chores**
- Updated feature flag settings by removing an obsolete flag and adding
the new web container flag.
- **Tests**
- Simplified code block preview tests for faster and more direct
validation of HTML preview content.
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## Summary by CodeRabbit
- **New Features**
- Toolbar actions related to embedding and duplicating documents are now always available without restrictions.
- **Chores**
- Removed the feature flag controlling embed document alias features for a simpler user experience.
- **Tests**
- Updated test setup to remove reliance on the deprecated feature flag.
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## Summary by CodeRabbit
- **New Features**
- Footnote definitions and "Sources" headings are now always included in notes, without requiring a feature flag.
- Enhanced footnote-related content with additional citation-style blocks such as bookmarks, embedded documents, and attachments.
- **Chores**
- Removed the citation feature flag and its related configuration, logic, and translations from the application.
- **Documentation**
- Updated localization files to remove entries related to the citation experimental feature.
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Closes: [BS-2578](https://linear.app/affine-design/issue/BS-2578/优化-footnote-预览的逻辑：支持缓存结果，避免重复-loading)
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## Summary by CodeRabbit
- **New Features**
- Introduced a link preview caching mechanism, enabling faster and more efficient reuse of link preview data across the app.
- Added a feature flag for enabling or disabling link preview cache, configurable through workspace experimental settings.
- Enhanced localization with new entries describing the link preview cache feature.
- **Improvements**
- Updated link preview service architecture for better extensibility and maintainability.
- Improved integration of feature flags throughout chat and rendering components.
- **Bug Fixes**
- Fixed tooltip formatting for footnote URLs.
- **Chores**
- Updated dependencies and localization completeness tracking.
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close: BS-3378
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## Summary by CodeRabbit
- **New Features**
- Introduced a modular virtualized table view with grouping, selection, drag-and-drop, clipboard support, and batch task management for optimized rendering.
- Added comprehensive keyboard shortcuts, drag-to-fill functionality, and clipboard operations for efficient table editing.
- Enabled dynamic column statistics, number formatting controls, and flexible switching between virtual and standard table views via a feature flag.
- Provided detailed row and group header/footer components with context menus, row management actions, and column reordering/resizing.
- Added a table view selector component to toggle between virtual and standard table views based on feature flags.
- **Style**
- Added extensive styling modules for virtual table elements including headers, footers, rows, cells, and interactive controls.
- **Chores**
- Registered numerous custom elements via modular effect functions to streamline component initialization.
- Updated feature flag system to include virtual table scrolling toggle.
- Added new dependencies to support styling and component functionality.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Closes: [BS-3122](https://linear.app/affine-design/issue/BS-3122/footnote-definition-adapter-适配)
Closes: [BS-3123](https://linear.app/affine-design/issue/BS-3123/几个-block-card-view-适配-footnote-态)
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Introduced a new citation card component and web element for displaying citations.
- Added support for citation-style rendering in attachment, bookmark, and linked document blocks.
- Enabled citation parsing from footnote definitions in markdown for attachments, bookmarks, and linked docs.
- Added a feature flag to enable or disable citation features.
- Provided new toolbar logic to disable downloads for citation-style attachments.
- **Improvements**
- Updated block models and properties to support citation identifiers.
- Added localization and settings for the citation experimental feature.
- Enhanced markdown adapters to recognize and process citation footnotes.
- Included new constants and styles for citation card display.
- **Bug Fixes**
- Ensured readonly state is respected in block interactions and rendering for citation blocks.
- **Documentation**
- Added exports and effects for new citation components and features.
- **Tests**
- Updated snapshots to include citation-related properties in block data.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
### TL;DR
For canvas elements, this PR adds placeholders during zooming operations to improve performance.
### What changed?
- Implemented placeholder rendering during zooming operations in the canvas renderer, but not only DOM.
- Added a `forceFullRender` property to the `GfxCompatibleInterface` to allow elements to opt out of placeholder rendering
- Set `forceFullRender = true` for connectors to ensure they always render properly, even during zooming
- Connected the turbo renderer to the viewport's zooming state to automatically switch between full and placeholder rendering
### Why make this change?
Rendering complex elements during zooming operations can cause performance issues and make the UI feel sluggish. Rendering connector label also leads to high cost DOM `set font` delays.
The turbo renderer improves performance by displaying simple placeholders for elements during zooming, while still rendering critical elements like connectors fully. This creates a smoother user experience while maintaining essential visual information.
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## Summary by CodeRabbit
- **New Features**
- Introduced a feature-flag-controlled "turbo" rendering mode that displays placeholder graphics during zooming for improved performance.
- Added the ability to override placeholder rendering for specific elements, ensuring full rendering when required.
- **Bug Fixes**
- Enhanced rendering logic to ensure connectors always render fully, even during zoom operations.
- **Documentation**
- Updated API documentation to reflect new properties related to rendering behavior.
- **Tests**
- Improved tests to verify correct rendering behavior for connectors.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Close [BS-2315](https://linear.app/affine-design/issue/BS-2315/page-block-header)
### What Changes
- Add header toolbar to page block (the first note in canvas)
- Add e2e tests
- Add some edgeless e2e test utils. **The package `@blocksuite/affine` was added to `"@affine-test/kit"`**
L-Sun
