feat: macOS Sage desktop client with login, UI rendering, and DMG packaging
- SageClient: HTTP client with cookie-based login, session management, UI fetching
- Main.kt: Full macOS desktop app with login screen, main window, loading/error states
- BricksRenderer: Complete inline rendering for VBox/HBox/Button/Form/Menu/TabPanel/Modal/Scroll/Image/Svg
- BricksHttp: Ktor CIO engine with cookie storage, Bearer token auth, form POST
- BricksContext: currentWidget state flow, resolveTemplates for entire_url
- ActionDispatcher: SageClient integration, urlwidget loading, event callbacks
- BricksWidget: Added options field to BricksBind
- BricksParser: Parse bind options from JSON
- Build: Added ktor-client-cio, content-negotiation deps; DMG packaging configured
- .gitignore: Standard Kotlin/Gradle/IDE patterns
yumoqing
82c2b89ecd