ci: 增强 CI workflow——测试报告上传 + lint + Release APK 完整性验证

- test job: testDebugUnitTest + lintDebug，上传 XML 测试报告和 lint 报告
- build-debug job: assembleDebug，上传 Debug APK artifact
- build-release job: assembleRelease + APK 完整性验证（manifest/arsc/res/），上传 Release APK artifact
- test 通过后才构建，三个 job 串行依赖
- 所有 artifact 保留 14 天

.github/workflows/ci.yml

@@ -6,7 +6,8 @@ on:
   pull_request:
 
 jobs:
-  build:
+  test:
+    name: Unit Tests & Lint
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -17,9 +18,96 @@ jobs:
       - uses: android-actions/setup-android@v3
         with:
           packages: 'platforms;android-35 build-tools;35.0.0'
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
       - name: Run unit tests
-        run: |
-          chmod +x gradlew
-          ./gradlew testDebugUnitTest
+        run: ./gradlew testDebugUnitTest
+
+      - name: Upload test results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: unit-test-results
+          path: app/build/test-results/testDebugUnitTest/*.xml
+          retention-days: 14
+
+      - name: Run lint
+        run: ./gradlew lintDebug
+
+      - name: Upload lint results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: lint-results
+          path: app/build/reports/lint-results-debug.*
+          retention-days: 14
+
+  build-debug:
+    name: Debug APK
+    runs-on: ubuntu-latest
+    needs: test
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+      - uses: android-actions/setup-android@v3
+        with:
+          packages: 'platforms;android-35 build-tools;35.0.0'
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
       - name: Assemble Debug
         run: ./gradlew assembleDebug
+
+      - name: Upload Debug APK
+        uses: actions/upload-artifact@v4
+        with:
+          name: debug-apk
+          path: app/build/outputs/apk/debug/app-debug.apk
+          retention-days: 14
+
+  build-release:
+    name: Release APK (no signing)
+    runs-on: ubuntu-latest
+    needs: test
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+      - uses: android-actions/setup-android@v3
+        with:
+          packages: 'platforms;android-35 build-tools;35.0.0'
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
+      - name: Assemble Release
+        run: ./gradlew assembleRelease
+
+      - name: Verify Release APK
+        run: |
+          APK=app/build/outputs/apk/release/app-release.apk
+          if [ ! -f "$APK" ]; then
+            echo "❌ Release APK not found"
+            exit 1
+          fi
+          echo "✅ Release APK size: $(du -h "$APK" | cut -f1)"
+          # Verify APK contains essential resources
+          unzip -l "$APK" | grep -q "AndroidManifest.xml" || { echo "❌ AndroidManifest.xml missing"; exit 1; }
+          unzip -l "$APK" | grep -q "resources.arsc" || { echo "❌ resources.arsc missing"; exit 1; }
+          unzip -l "$APK" | grep -q "res/" || { echo "❌ res/ directory missing"; exit 1; }
+          echo "✅ APK integrity verified: manifest + arsc + res/ all present"
+
+      - name: Upload Release APK
+        uses: actions/upload-artifact@v4
+        with:
+          name: release-apk
+          path: app/build/outputs/apk/release/app-release.apk
+          retention-days: 14