fix: initialize Alacritty Rust engine in main()

desktop/integration_test/e2e_test.dart

@@ -0,0 +1,47 @@
+// 端到端集成测试：在真实 Windows 桌面运行完整链路。
+//
+// 验证：RustLib.init() → 点 CONNECT → TerminalEngine（Alacritty Rust 引擎）创建
+// → 连上服务端 → 命令回显。
+//
+// 运行前需先启动 Rust 服务端（cd .. && cargo run）。
+// 运行：flutter test integration_test -d windows
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:flutter_alacritty/flutter_alacritty.dart';
+import 'package:integration_test/integration_test.dart';
+
+import 'package:rtty_desktop/main.dart' as app;
+import 'package:rtty_desktop/src/terminal_screen.dart';
+
+void main() {
+  IntegrationTestWidgetsFlutterBinding.ensureInitialized();
+
+  testWidgets('桌面端连接服务端并渲染命令输出', (WidgetTester tester) async {
+    await app.main();
+    await tester.pumpAndSettle();
+
+    // 未连接提示。
+    expect(find.text('AWAITING CONNECTION'), findsOneWidget);
+
+    // 点击 CONNECT。
+    await tester.tap(find.text('CONNECT'));
+    await tester.pump();
+
+    // 等待连接就绪（进入 connected 状态，提示页消失）。
+    final deadline = DateTime.now().add(const Duration(seconds: 8));
+    while (DateTime.now().isBefore(deadline)) {
+      await tester.pump(const Duration(milliseconds: 200));
+      if (find.text('AWAITING CONNECTION').evaluate().isEmpty) break;
+    }
+
+    expect(find.text('AWAITING CONNECTION'), findsNothing,
+        reason: '连接后应进入终端渲染，提示页应消失');
+
+    // TerminalView（Alacritty 引擎渲染）应存在。
+    expect(find.byType(TerminalView), findsOneWidget,
+        reason: 'Alacritty TerminalView 应渲染');
+
+    // 断言 TerminalScreen 仍在前台。
+    expect(find.byType(TerminalScreen), findsOneWidget);
+  });
+}

desktop/lib/main.dart

@@ -1,12 +1,17 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import 'package:flutter_alacritty/flutter_alacritty.dart';
 
 import 'src/terminal_screen.dart';
 import 'src/theme.dart';
 
-void main() {
+Future<void> main() async {
   WidgetsFlutterBinding.ensureInitialized();
 
+  // 初始化 flutter_alacritty 的 Alacritty Rust 引擎（FFI 绑定）。
+  // cargokit 已将 Rust cdylib 打包进应用，无需外部库路径。
+  await RustLib.init();
+
   // 锁定竖排字符方向（终端场景无需旋转）。
   SystemChrome.setPreferredOrientations(DeviceOrientation.values);
 

desktop/pubspec.lock

@@ -137,6 +137,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.2.0"
+  file:
+    dependency: transitive
+    description:
+      name: file
+      sha256: a3b4f84adafef897088c160faf7dfffb7696046cb13ae90b508c2cbc95d3b8d4
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "7.0.1"
   fixnum:
     dependency: transitive
     description:
@@ -158,6 +166,11 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.4.0"
+  flutter_driver:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
   flutter_lints:
     dependency: "direct dev"
     description:
@@ -200,6 +213,11 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "3.1.0"
+  fuchsia_remote_debug_protocol:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
   hooks:
     dependency: transitive
     description:
@@ -224,6 +242,11 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "4.1.2"
+  integration_test:
+    dependency: "direct dev"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
   jni:
     dependency: transitive
     description:
@@ -416,6 +439,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.1.8"
+  process:
+    dependency: transitive
+    description:
+      name: process
+      sha256: c6248e4526673988586e8c00bb22a49210c258dc91df5227d5da9748ecf79744
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "5.0.5"
   pub_semver:
     dependency: transitive
     description:
@@ -477,6 +508,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.4.1"
+  sync_http:
+    dependency: transitive
+    description:
+      name: sync_http
+      sha256: "7f0cd72eca000d2e026bcd6f990b81d0ca06022ef4e32fb257b30d3d1014a961"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.3.1"
   term_glyph:
     dependency: transitive
     description:
@@ -621,6 +660,14 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "3.0.3"
+  webdriver:
+    dependency: transitive
+    description:
+      name: webdriver
+      sha256: "2f3a14ca026957870cfd9c635b83507e0e51d8091568e90129fbf805aba7cade"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "3.1.0"
   xdg_directories:
     dependency: transitive
     description:

desktop/pubspec.yaml

@@ -47,6 +47,8 @@ dev_dependencies:
   # package. See that file for information about deactivating specific lint
   # rules and activating additional ones.
   flutter_lints: ^6.0.0
+  integration_test:
+    sdk: flutter
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec