chore: Add CI workflow

.github/workflows/ci.yaml

@@ -0,0 +1,80 @@
+name: CI
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+      - stable-*
+  pull_request:
+    branches:
+      - main
+      - stable-*
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
+
+jobs:
+  dart_format:
+    name: dart format
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Dart
+        uses: dart-lang/setup-dart@v1
+        with:
+          sdk: stable
+      - name: Run pub get
+        run: dart pub get
+      # Skip code generation for formatting check
+      - name: Verify formatting
+        run: dart format --output=none --set-exit-if-changed .
+
+  dart_analyze:
+    name: dart analyze
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Dart
+        uses: dart-lang/setup-dart@v1
+        with:
+          sdk: stable
+      - name: Run pub get
+        run: dart pub get
+      - name: Generate code
+        run: dart run build_runner build --delete-conflicting-outputs
+      - name: Run lint
+        run: dart analyze .
+
+  tests:
+    name: dart test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Dart
+        uses: dart-lang/setup-dart@v1
+        with:
+          sdk: stable
+      - name: Run pub get
+        run: dart pub get
+      - name: Generate code
+        run: dart run build_runner build --delete-conflicting-outputs
+      - name: Run tests
+        run: dart test
+
+  publish_check:
+    name: dart publish check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Dart
+        uses: dart-lang/setup-dart@v1
+        with:
+          sdk: stable
+      - name: Run pub get
+        run: dart pub get
+      - name: Generate code
+        run: dart run build_runner build --delete-conflicting-outputs
+      - name: Run publish dry run
+        run: dart pub publish --dry-run