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

libs/enigo/README.md

@@ -0,0 +1,46 @@
+[![Build Status](https://travis-ci.org/enigo-rs/enigo.svg?branch=master)](https://travis-ci.org/enigo-rs/enigo)
+[![Build status](https://ci.appveyor.com/api/projects/status/6cd00pajx4tvvl3e?svg=true)](https://ci.appveyor.com/project/pythoneer/enigo-85xiy)
+[![Dependency Status](https://dependencyci.com/github/pythoneer/enigo/badge)](https://dependencyci.com/github/pythoneer/enigo)
+[![Docs](https://docs.rs/enigo/badge.svg)](https://docs.rs/enigo)
+[![Crates.io](https://img.shields.io/crates/v/enigo.svg)](https://crates.io/crates/enigo)
+[![Discord chat](https://img.shields.io/discord/315925376486342657.svg)](https://discord.gg/Eb8CsnN)
+[![Gitter chat](https://badges.gitter.im/gitterHQ/gitter.png)](https://gitter.im/enigo-rs/Lobby)
+
+
+# enigo
+Cross platform input simulation in Rust!
+
+- [x] Linux (X11) mouse
+- [x] Linux (X11) text
+- [ ] Linux (Wayland) mouse
+- [ ] Linux (Wayland) text
+- [x] MacOS mouse
+- [x] MacOS text
+- [x] Win mouse
+- [x] Win text
+- [x] Custom Parser
+
+
+```Rust
+let mut enigo = Enigo::new();
+
+enigo.mouse_move_to(500, 200);
+enigo.mouse_click(MouseButton::Left);
+enigo.key_sequence_parse("{+CTRL}a{-CTRL}{+SHIFT}Hello World{-SHIFT}");
+```
+
+for more look at examples
+
+Runtime dependencies
+--------------------
+
+Linux users may have to install libxdo-dev. For example, on Ubuntu:
+
+```Bash
+apt install libxdo-dev
+```
+On Arch: 
+
+```Bash
+pacman -S xdotool
+```