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/examples/dsl.rs

@@ -0,0 +1,11 @@
+use enigo::{Enigo, KeyboardControllable};
+use std::thread;
+use std::time::Duration;
+
+fn main() {
+    thread::sleep(Duration::from_secs(2));
+    let mut enigo = Enigo::new();
+
+    // write text and select all
+    enigo.key_sequence_parse("{+UNICODE}{{Hello World!}} ❤️{-UNICODE}{+CTRL}a{-CTRL}");
+}

libs/enigo/examples/key.rs

@@ -0,0 +1,17 @@
+use enigo::{Enigo, Key, KeyboardControllable};
+use std::thread;
+use std::time::Duration;
+
+fn main() {
+    thread::sleep(Duration::from_secs(2));
+    let mut enigo = Enigo::new();
+
+    enigo.key_down(Key::Shift).ok();
+    enigo.key_down(Key::Layout('.')).ok();
+    enigo.key_up(Key::Layout('.'));
+    enigo.key_up(Key::Shift);
+    enigo.key_down(Key::Shift).ok();
+    enigo.key_down(Key::Layout('-')).ok();
+    enigo.key_up(Key::Layout('-'));
+    enigo.key_up(Key::Shift);
+}

libs/enigo/examples/keyboard.rs

@@ -0,0 +1,16 @@
+use enigo::{Enigo, Key, KeyboardControllable};
+use std::thread;
+use std::time::Duration;
+
+fn main() {
+    thread::sleep(Duration::from_secs(2));
+    let mut enigo = Enigo::new();
+
+    // write text
+    enigo.key_sequence("Hello World! here is a lot of text  ❤️");
+
+    // select all
+    enigo.key_down(Key::Control).ok();
+    enigo.key_click(Key::Layout('a'));
+    enigo.key_up(Key::Control);
+}

libs/enigo/examples/mouse.rs

@@ -0,0 +1,54 @@
+use enigo::{Enigo, MouseButton, MouseControllable};
+#[cfg(windows)]
+use winapi::um::winuser::WHEEL_DELTA;
+use std::thread;
+use std::time::Duration;
+
+fn main() {
+    let wait_time = Duration::from_secs(2);
+    let mut enigo = Enigo::new();
+
+    thread::sleep(wait_time);
+
+    enigo.mouse_move_to(500, 200);
+    thread::sleep(wait_time);
+
+    enigo.mouse_down(MouseButton::Left).ok();
+    thread::sleep(wait_time);
+
+    enigo.mouse_move_relative(100, 100);
+    thread::sleep(wait_time);
+
+    enigo.mouse_up(MouseButton::Left);
+    thread::sleep(wait_time);
+
+    enigo.mouse_click(MouseButton::Left);
+    thread::sleep(wait_time);
+
+    #[cfg(not(target_os = "macos"))]
+    {
+        #[cfg(windows)]
+        enigo.mouse_scroll_x(2 * WHEEL_DELTA as i32);
+        #[cfg(not(windows))]
+        enigo.mouse_scroll_x(2);
+        thread::sleep(wait_time);
+
+        #[cfg(windows)]
+        enigo.mouse_scroll_x(-2 * WHEEL_DELTA as i32);
+        #[cfg(not(windows))]
+        enigo.mouse_scroll_x(-2);
+        thread::sleep(wait_time);
+
+        #[cfg(windows)]
+        enigo.mouse_scroll_y(2 * WHEEL_DELTA as i32);
+        #[cfg(not(windows))]
+        enigo.mouse_scroll_y(2);
+        thread::sleep(wait_time);
+
+        #[cfg(windows)]
+        enigo.mouse_scroll_y(-2 * WHEEL_DELTA as i32);
+        #[cfg(not(windows))]
+        enigo.mouse_scroll_y(-2);
+        thread::sleep(wait_time);
+    }
+}

libs/enigo/examples/timer.rs

@@ -0,0 +1,22 @@
+use enigo::{Enigo, Key, KeyboardControllable};
+use std::thread;
+use std::time::Duration;
+use std::time::Instant;
+
+fn main() {
+    thread::sleep(Duration::from_secs(2));
+    let mut enigo = Enigo::new();
+
+    let now = Instant::now();
+
+    // write text
+    enigo.key_sequence("Hello World! ❤️");
+
+    let time = now.elapsed();
+    println!("{:?}", time);
+
+    // select all
+    enigo.key_down(Key::Control).ok();
+    enigo.key_click(Key::Layout('a'));
+    enigo.key_up(Key::Control);
+}