This PR introduces new window behaviors, which can be enabled when the
menubar setting is active:
New Features:
- Quick open from tray icon
- Minimize to tray
- Exit to tray
- Start minimized
These changes have not yet been tested on macOS.
<img width="645" height="479" alt="image"
src="https://github.com/user-attachments/assets/7bdd13d0-5322-45a4-8e71-85c081aa0c86"
/>
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## Summary by CodeRabbit
* **New Features**
* Configurable menubar/tray behaviors: open on left-click, minimize to
tray, close to tray (exit to tray), and start minimized.
* **UI**
* Appearance settings add a Menubar → Window Behavior group with four
toggles; group shows only when menubar/tray is enabled (hidden on
macOS).
* **Settings**
* Tray settings persisted and exposed via the settings API with getters
and setters for each option.
* **Localization**
* Added translation keys and English strings for the new controls and
descriptions.
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Co-authored-by: Peng Xiao <pengxiao@outlook.com>
close AI-246, AI-285
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## Summary by CodeRabbit
## Summary by CodeRabbit
* **New Features**
* Introduced an AI chat interface accessible from the sidebar with a
dedicated "/chat" route.
* Added "AFFiNE Intelligent" button with AI icon to the sidebar for
quick chat access.
* Enhanced chat components with an "independent mode" for improved
message display and layout.
* Improved chat input and content styling, including responsive layout
and onboarding offset support.
* **Improvements**
* Expanded icon support to include an AI icon in the app.
* Updated utility and schema functions for greater flexibility and error
prevention.
* Added a new chat container style for consistent layout and max width.
* **Bug Fixes**
* Prevented potential errors when certain editor hosts are not provided.
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fix AF-2572


<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Introduced a Meetings welcome page with a beta disclaimer and "Get Started" flow.
- Added separate toggles for AI auto summary and AI auto todo list in meeting settings.
- Added "Beta" labels to relevant settings and sidebar items for clearer feature status.
- Enhanced settings UI with improved headers, subtitles, and new styling.
- **Improvements**
- Meeting settings now allow independent control over AI-generated summaries and todo lists.
- Updated internationalization to support new meeting and AI transcription features, including richer prompts and hints.
- Refined logic for enabling meeting recording, including improved permission handling.
- Simplified transcription logic to rely solely on AI enablement flag.
- **Bug Fixes**
- Fixed display and control of meeting settings based on beta disclaimer acceptance.
- **Chores**
- Updated localization files and completeness percentages for several languages.
- Removed deprecated feature flag for enabling meetings.
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