fix(client/windows): 修桌面/标题栏图标 + 标题文案 + 系统托盘空白

- app_icon.ico 重新由 assets/app-icon.svg 生成(穿山甲品牌图标,多尺寸),
  替换残留的默认 Flutter logo —— 同时修好桌面图标与标题栏小图标。
- 窗口标题去掉 "VPN" 字眼:main.cpp 原生标题 pangolin_vpn → Pangolin;
  main.dart 用 windowManager.setTitle('穿山甲') 显示中文品牌名;
  Runner.rc 的 FileDescription/InternalName/ProductName → Pangolin。
- 系统托盘空白:Windows 走 Win32 Shell_NotifyIcon 只认 .ico(传 PNG 显示空白),
  新增 BMP 编码的 assets/tray_icon.ico,system_tray.dart 按平台选 ico/png。
- 安装包版本 1.0.0 → 1.0.1(pubspec 1.0.1+2)便于区分测试构建。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

client/lib/main.dart

@@ -31,6 +31,8 @@ Future<void> main() async {
     await windowManager.setMinimumSize(const Size(720, 560));
     await windowManager.setSize(const Size(920, 640));
     await windowManager.center();
+    // 窗口标题用中文品牌名(不带 "VPN" 字眼);英文环境下原生标题为 "Pangolin"。
+    await windowManager.setTitle('穿山甲');
   }
   runApp(const ProviderScope(child: PangolinApp()));
 }

client/lib/system_tray.dart

@@ -53,7 +53,11 @@ class TrayService with TrayListener, WindowListener {
     windowManager.addListener(this);
 
     trayManager.addListener(this);
-    await trayManager.setIcon('assets/tray_icon.png');
+    // Windows 托盘走 Win32 Shell_NotifyIcon,只认 .ico(传 PNG 会显示空白);
+    // macOS/Linux 用 PNG。
+    await trayManager.setIcon(
+      Platform.isWindows ? 'assets/tray_icon.ico' : 'assets/tray_icon.png',
+    );
     await trayManager.setToolTip('穿山甲 Pangolin');
     await trayManager.setContextMenu(Menu(items: [
       MenuItem(key: 'show', label: '显示主界面'),

client/pubspec.yaml

@@ -1,7 +1,7 @@
 name: pangolin_vpn
 description: 穿山甲 · Pangolin — 极简、稳定、跨平台网络加速客户端。
 publish_to: "none"
-version: 1.0.0+1
+version: 1.0.1+2
 
 environment:
   sdk: ^3.5.0
@@ -45,6 +45,7 @@ flutter:
     - assets/logo-wordmark.svg
     - assets/app-icon.svg
     - assets/tray_icon.png
+    - assets/tray_icon.ico   # Windows 托盘专用(Win32 只认 .ico)
 
   # ── 字体(本地打包,全平台离线)──
   # 拉丁全量(Sora/Manrope/JetBrains Mono)+ Noto Sans SC 子集(GB2312 6763 字,单 Regular

client/windows/installer/pangolin.iss

@@ -3,7 +3,7 @@
 ; 前置: 先在 client/ 跑 `flutter build windows`(Release),产物在
 ;       ..\..\build\windows\x64\runner\Release
 #define MyAppName "穿山甲 Pangolin"
-#define MyAppVersion "1.0.0"
+#define MyAppVersion "1.0.1"
 #define MyAppPublisher "Pangolin"
 #define MyAppExeName "pangolin_vpn.exe"
 #define BuildDir "..\..\build\windows\x64\runner\Release"

client/windows/runner/Runner.rc

@@ -90,12 +90,12 @@ BEGIN
         BLOCK "040904e4"
         BEGIN
             VALUE "CompanyName", "com.pangolin" "\0"
-            VALUE "FileDescription", "pangolin_vpn" "\0"
+            VALUE "FileDescription", "Pangolin" "\0"
             VALUE "FileVersion", VERSION_AS_STRING "\0"
-            VALUE "InternalName", "pangolin_vpn" "\0"
+            VALUE "InternalName", "Pangolin" "\0"
             VALUE "LegalCopyright", "Copyright (C) 2026 com.pangolin. All rights reserved." "\0"
             VALUE "OriginalFilename", "pangolin_vpn.exe" "\0"
-            VALUE "ProductName", "pangolin_vpn" "\0"
+            VALUE "ProductName", "Pangolin" "\0"
             VALUE "ProductVersion", VERSION_AS_STRING "\0"
         END
     END

client/windows/runner/main.cpp

@@ -27,7 +27,7 @@ int APIENTRY wWinMain(_In_ HINSTANCE instance, _In_opt_ HINSTANCE prev,
   FlutterWindow window(project);
   Win32Window::Point origin(10, 10);
   Win32Window::Size size(1280, 720);
-  if (!window.Create(L"pangolin_vpn", origin, size)) {
+  if (!window.Create(L"Pangolin", origin, size)) {
     return EXIT_FAILURE;
   }
   window.SetQuitOnClose(true);