feat: add menu-macos and sf-symbols modules

[kdroidFilter]

Summary

• menu-macos: Complete NSMenu mapping via JNI with a declarative Compose API (NativeMenuBar) for building fully native, reactive macOS application menu bars — supports SF Symbols, keyboard shortcuts, badges, submenus, checkboxes, radio buttons, section headers, alternate items, tooltips, subtitles, indentation, and delegates
• sf-symbols: 6 195 type-safe Apple SF Symbols constants across 21 categories (SFSymbolArrows, SFSymbolMedia, SFSymbolObjectsAndTools, etc.), usable directly as NsMenuItemImage.SystemSymbol(SFSymbolMedia.PLAY)
• Plugin fix: CFBundleName now uses appName (fallback packageName) — previously always used packageName. Also auto-injects -Dapple.awt.application.name in the run task on macOS
• Auto-registration: submenus titled "Services", "Window", or "Help" are automatically registered with macOS via setServicesMenu: / setWindowsMenu: / setHelpMenu:

API

NativeMenuBar {
    Menu("MyApp") {
        Item("About", icon = NsMenuItemImage.SystemSymbol(SFSymbolStatus.INFO_CIRCLE)) { }
        Separator()
        Item("Quit", shortcut = NativeKeyShortcut("q")) { exitProcess(0) }
    }
    Menu("File") {
        Item("New", shortcut = NativeKeyShortcut("n")) { }
        CheckboxItem("Show Toolbar", checked = showToolbar, onCheckedChange = { showToolbar = it })
    }
    Menu("Badges") {
        Item("Inbox", badge = NsMenuItemBadge.Count(42)) { }
    }
}

Test plan

• ./gradlew :menu-macos:jar — module compiles and packages
• ./gradlew :sf-symbols:jar — 6195 constants compile
• ./gradlew :example:run — Menu tab: Install menu bar, verify all menus appear
• Verify reactive recomposition: type in the title field, move sliders, toggle checkboxes — menu bar updates in real time
• Verify action callbacks: click menu items, check event log
• Verify Services menu is populated by macOS
• Verify menu bar is restored when leaving the Menu tab
• ./gradlew :example:packageDistributionForCurrentOS — verify CFBundleName uses appName