ci: add generated files check workflow and improve melos generate command

- Add new GitHub Actions workflow to ensure generated files are up-to-date
- Create parent 'generate' command that runs both pigeon and dart generation
- Update generate:pigeon to use --depends-on filter for consistency
- Workflow fails PR builds if generated files are not committed

This ensures the repository always contains current generated files.

🤖 Generated with [Claude Code](https://claude.ai/code)

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

Author: ened

.github/workflows/generated-files.yml

@@ -0,0 +1,35 @@
+name: generated-files
+
+on:
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  check-generated-files:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: subosito/flutter-action@v2
+        with:
+          channel: 'stable'
+          cache: true
+      - uses: bluefireteam/melos-action@v3
+      
+      - name: Generate files
+        run: melos run generate
+        
+      - name: Check for uncommitted changes
+        run: |
+          if ! git diff --quiet; then
+            echo "❌ Generated files are not up-to-date!"
+            echo "The following files have uncommitted changes after generation:"
+            git diff --name-only
+            echo ""
+            echo "Please run 'melos run generate' locally and commit the updated files."
+            echo ""
+            echo "Changes detected:"
+            git diff
+            exit 1
+          else
+            echo "✅ All generated files are up-to-date"
+          fi

melos.yaml

@@ -9,13 +9,19 @@ scripts:
   get: melos exec -- dart pub get
 
   test:
-    run: melos exec --depends-on="flutter_test" -- "flutter test"
+    run: melos exec -c 1 --depends-on="flutter_test" -- "flutter test"
     description: Run tests for all packages with flutter_test dependency.
 
+  generate:
+    run: |
+      melos run generate:pigeon
+      melos run generate:dart
+    description: Generate all code (Pigeon files and Dart mocks/generated files).
+
   generate:dart:
-    run: melos exec -c 1 --depends-on="build_runner" --no-flutter -- "dart run build_runner build --delete-conflicting-outputs"
+    run: melos exec -c 1 --depends-on="build_runner" -- "dart run build_runner build --delete-conflicting-outputs"
     description: Build all generated files for Dart packages in this project.
 
   generate:pigeon:
-    run: cd workmanager_platform_interface && dart run pigeon --input pigeons/workmanager_api.dart
-    description: Generate Pigeon type-safe platform channel code for workmanager_platform_interface.
+    run: melos exec -c 1 --depends-on="pigeon" -- "dart run pigeon --input pigeons/workmanager_api.dart"
+    description: Generate Pigeon type-safe platform channel code for packages with pigeon dependency.