Modernize Android CI and run the complete Dart suite

.github/workflows/build.yml

@@ -20,9 +20,7 @@ jobs:
           submodules: recursive
 
       - name: Set up Rust
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
+        uses: dtolnay/rust-toolchain@stable
 
       - name: Set up Flutter
         uses: subosito/flutter-action@v2
@@ -31,7 +29,7 @@ jobs:
           flutter-version: 3.24.0
 
       - name: Set up Java
-        uses: actions/setup-java@v2
+        uses: actions/setup-java@v5
         with:
           java-version: '21'
           distribution: 'temurin'
@@ -64,6 +62,18 @@ jobs:
               cp rustpush/certs/legacy-fairplay/fairplay.crt rustpush/certs/fairplay/$name.crt
           done
 
+      # Keep the test gate whole rather than maintaining a hand-curated file
+      # list. This upstream base has no test/ directory yet, so the guard is
+      # intentionally a clean no-op until Dart tests are present.
+      - name: Run the complete Dart test suite
+        run: |
+          set -euo pipefail
+          if [ -d test ]; then
+            flutter test
+          else
+            echo "No test/ directory in this upstream base; Dart suite not present."
+          fi
+
       # First run is expected to fail until ffmpeg_kit_flutter_new is fixed.
       - name: Run Build Script
         run: |
@@ -72,4 +82,4 @@ jobs:
       - uses: actions/upload-artifact@v4
         with:
           name: Alpha Debug APK
-          path: build/app/outputs/flutter-apk/app-alpha-debug.apk
+          path: build/app/outputs/flutter-apk/app-alpha-debug.apk