Resolve manual build Flutter version dynamically

.github/workflows/manual-build.yml

@@ -32,7 +32,7 @@
       - 'v*'
 
 env:
-  FLUTTER_VERSION: ${{ github.event.inputs.flutter_version || '3.41.9' }}
+  FLUTTER_VERSION: ${{ github.event.inputs.flutter_version }}
   FLUTTER_CHANNEL: ${{ github.event.inputs.flutter_channel || 'stable' }}
 
 jobs:
@@ -56,11 +56,28 @@
       - run: sudo apt-get install libstdc++6
 
       - uses: actions/checkout@v4
+
+      - name: Resolve Flutter version
+        id: flutter-version
+        shell: bash
+        run: |
+          if [ -n "$FLUTTER_VERSION" ]; then
+            echo "version=$FLUTTER_VERSION" >> "$GITHUB_OUTPUT"
+            exit 0
+          fi
+
+          version="$(curl -fsSL https://storage.googleapis.com/flutter_infra_release/releases/releases_linux.json | python3 -c 'import json, sys; data = json.load(sys.stdin); stable = data["current_release"]["stable"]; print(next(release["version"] for release in data["releases"] if release["hash"] == stable))')"
+          if [ -z "$version" ]; then
+            echo "Failed to resolve latest stable Flutter version" >&2
+            exit 1
+          fi
+          echo "version=$version" >> "$GITHUB_OUTPUT"
+
       - uses: subosito/flutter-action@v2
         with:
           # https://github.com/subosito/flutter-action/issues/345#issuecomment-2657332687
           channel: 'master'
-          flutter-version: ${{ env.FLUTTER_VERSION }}
+          flutter-version: ${{ steps.flutter-version.outputs.version }}
 
       - uses: actions-rs/toolchain@v1
         with:
@@ -273,90 +290,90 @@
           overwrite: true
 
   build-windows:
-    runs-on: windows-latest
+    runs-on: windows-2022
     if: contains(github.event.inputs.platforms, 'windows') || github.event.inputs.platforms == ''
     steps:
       - uses: actions/checkout@v4
 
       - uses: subosito/flutter-action@v2
         with:
           channel: ${{ env.FLUTTER_CHANNEL }}
           flutter-version: ${{ env.FLUTTER_VERSION }}
 
       - uses: actions-rs/toolchain@v1
         with:
           toolchain: 'stable' # 'stable' or 'nightly'
           override: true
           components: rustfmt, clippy
 
       - run: flutter --version
 
       - name: Generator ENV
         run: |
           echo SENTRY_DSN=${{ secrets.SENTRY_DSN }} >> .env
 
       - name: Run Build Runner
         run: dart run build_runner build --delete-conflicting-outputs
 
       # https://stackoverflow.com/questions/22575662/filename-too-long-in-git-for-windows/22575737#22575737
       - run: git config --system core.longpaths true
 
       - run: flutter config --enable-windows-desktop
       # fix error when dump debug info: (msdia*.dll unregistered?)
       - run: regsvr32 "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\Common7\IDE\Remote Debugger\x64\msdia140.dll"
 
       - uses: ilammy/setup-nasm@v1
 
       - name: Build APP
         id: build-app
         run: |
           $version_str=$(gc .\pubspec.yaml | select-string '(?<=^version: ).*' -AllMatches | Select-Object -Expand Matches | %{$_.Value})
           $version=$version_str.Split("+")[0]
           $build_number=$version_str.Split("+")[1]
           flutter build windows --dart-define="APP_VERSION=$version" --dart-define="APP_BUILD_NUMBER=$build_number"
           echo "MSIX_PACKAGE_VERSION=$version.0" >> $Env:GITHUB_OUTPUT
 
       - name: Build Installer
         run: |
           if (Test-Path "${env:ProgramFiles(x86)}\Inno Setup 6\iscc.exe") {
             & "${env:ProgramFiles(x86)}\Inno Setup 6\iscc.exe" "windows_inno_setup.iss"
           } else {
             Write-Error "Inno Setup compiler (iscc.exe) not found at expected location"
             exit 1
           }
 
       - name: Upload Installer
         uses: actions/upload-artifact@v4
         with:
           name: mixin_desktop_windows_setup_amd64.exe.zip
           path: build\mixin_desktop_windows_setup_amd64.exe
 
       - name: Build msix
         run: |
           echo "create msix. version: ${{ steps.build-app.outputs.MSIX_PACKAGE_VERSION }}"
           flutter pub run msix:create --build-windows false --version ${{ steps.build-app.outputs.MSIX_PACKAGE_VERSION }} -v
 
       - name: Upload msix
         uses: actions/upload-artifact@v4
         with:
           name: flutter_app.msix.zip
           path: build\windows\x64\runner\Release\flutter_app.msix
 
       - name: collect debug info
         run: flutter pub run debug_info_collector
 
       - name: Upload debug info
         uses: actions/upload-artifact@v4
         with:
           name: windows_debug_info
           path: build\syms
 
       - name: Upload windows setup exe
         uses: svenstaro/upload-release-action@v2
         if: startsWith(github.ref, 'refs/tags/v')
         with:
           repo_token: ${{ secrets.GITHUB_TOKEN }}
           file: build/mixin_desktop_windows_setup_amd64.exe
           asset_name: mixin_desktop_windows_setup_amd64.exe
           tag: ${{ github.ref }}
           overwrite: true

lib/utils/system/package_info.dart

@@ -8,7 +8,7 @@ import '../logger.dart';
 // auto added by .github/workflows/manual-build.yml
 const _kAppVersion = String.fromEnvironment(
   'APP_VERSION',
-  defaultValue: '1.15.0',
+  defaultValue: '4.3.0',
 );
 const _kAppBuildNumber = String.fromEnvironment(
   'APP_BUILD_NUMBER',