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)
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## 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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Closes: [BS-3359](https://linear.app/affine-design/issue/BS-3359/重构-filesizelimitservice-支持-handle-文件超出限制)
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Added an "Upgrade" button to attachment blocks that appears when file size limits are exceeded, enabling users to view storage plans and upgrade.
- **Refactor**
- Unified file size limit handling across attachments and images for consistency.
- Redesigned file size limit service with improved integration and dependency injection.
- **Chores**
- Updated service registrations and dependency management for file size limit enforcement.
- Integrated a new file size limit extension that triggers storage plan dialogs and tracking events on limit exceedance.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Introduced the Affine Foundation package, providing a centralized layer for initializing core UI effects, custom elements, and foundational services.
- Added new foundational store and view extensions to improve core service registration and UI effect setup.
- **Refactor**
- Streamlined and reorganized block, store, and view extension arrays to rely on the new foundation layer, reducing duplication and simplifying extension management.
- Removed redundant or now-centralized services and UI effects from existing modules.
- **Chores**
- Updated configuration files and workspace dependencies to support the new Affine Foundation package.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
donteatfriedrice