Initial commit: RustDesk 1.4.7 macOS desktop port

- Filled empty libs/hbb_common/ submodule (cloned from rustdesk/hbb_common)
- Patched Flutter 3.44 / Dart 3.12 compatibility:
  * flutter/lib/generated_bridge.dart: asTypedList with cast<>, DartPort=Int64
  * flutter/lib/common.dart: DialogTheme->DialogThemeData, TabBarTheme->TabBarThemeData
  * flutter/pubspec.yaml: extended_text 14.0.0->15.0.2, google_fonts override 5.0.0
  * flutter/macos/Runner/Configs/Release.xcconfig: EXCLUDED_ARCHS=x86_64
- Build verified: cargo check + cargo build --features flutter + cargo build --release --features flutter
- Verified flutter build macos --debug and --release both produce working .app
- Verified .dmg installer (27MB arm64) created via hdiutil
- Build deps: Xcode 26.5, CocoaPods 1.16.2, Flutter 3.44, VCPKG arm64-osx

res/msi/Package/Fragments/AddRemoveProperties.wxs

@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs">
+	<?include ../Includes.wxi?>
+
+	<Fragment>
+
+		<Property Id="AddRemovePropertiesFile" Value="1" />
+
+		<!--STOP_SERVICE is set to 'Y'. Because the config value may be empty or 'Y'-->
+		<Property Id="STOP_SERVICE" Value="&apos;Y&apos;" />
+
+		<Property Id="LAUNCH_TRAY_APP" Value="Y" />
+
+		<!--
+		Support entries shown when clicking "Click here for support information"
+		in Control Panel's Add/Remove Programs https://learn.microsoft.com/en-us/windows/win32/msi/property-reference
+		-->
+		<!--<Property Id="ARPCOMMENTS" Value="!(loc.AR_Comment)" />
+		<Property Id="ARPCONTACT" Value="https://github.com/rustdesk/rustdesk" />
+		<Property Id="ARPHELPLINK" Value="https://github.com/rustdesk/rustdesk" />
+		<Property Id="ARPREADME" Value="https://github.com/rustdesk/rustdesk" />
+		<Property Id="ARPURLINFOABOUT" Value="https://github.com/rustdesk/rustdesk" />
+		<Property Id="ARPURLUPDATEINFO" Value="https://github.com/rustdesk/rustdesk" />-->
+
+		<Property Id="ARPPRODUCTICON" Value="AppIcon" />
+
+		<!--$ArpStart$-->
+		<!--$ArpEnd$-->
+
+		<!--$CustomClientPropsStart$-->
+		<!--$CustomClientPropsEnd$-->
+
+		<Property Id="APP_WINDOWS_INSTALLER">
+			<RegistrySearch Id="AppWindowsInstallerFolderSearch" Root="HKLM" Key="Software\Microsoft\Windows\CurrentVersion\Uninstall\$(var.Product)" Name="WindowsInstaller" Type="raw" />
+		</Property>
+	</Fragment>
+</Wix>