feat(ci): add commitlint validation to ci workflow

.github/workflows/ci.yml

@@ -0,0 +1,192 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  commitlint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          
+      - name: Install dependencies
+        run: npm ci
+        
+      - name: Validate current commit
+        if: github.event_name == 'push'
+        run: npx commitlint --from HEAD~1 --to HEAD --verbose
+        
+      - name: Validate PR commits
+        if: github.event_name == 'pull_request'
+        run: npx commitlint --from ${{ github.event.pull_request.base.sha }} --to ${{ github.event.pull_request.head.sha }} --verbose
+
+  frontend:
+    runs-on: ubuntu-latest
+    
+    strategy:
+      matrix:
+        node-version: [18.x, 20.x]
+    
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        
+      - name: Setup Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'npm'
+          
+      - name: Install dependencies
+        run: npm ci
+        
+      - name: Lint
+        run: npm run lint
+        
+      - name: Unit Tests
+        run: npm run test:run
+        
+      - name: Build
+        run: npm run build
+        
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: dist-${{ matrix.node-version }}
+          path: dist/
+          retention-days: 7
+
+  backend:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20.x'
+          
+      - name: Install dependencies
+        working-directory: ./backend
+        run: npm ci
+        
+      - name: Test
+        working-directory: ./backend
+        run: npm test
+
+  integration:
+    runs-on: ubuntu-latest
+    needs: [frontend, backend, commitlint]
+    
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20.x'
+          cache: 'npm'
+          
+      - name: Install dependencies
+        run: npm ci
+        
+      - name: Run Integration Tests
+        run: npm run test:integration
+
+  e2e:
+    runs-on: ubuntu-latest
+    needs: [frontend, backend, commitlint]
+    
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20.x'
+          cache: 'npm'
+          
+      - name: Install dependencies
+        run: npm ci
+        
+      - name: Install Playwright browsers
+        run: npx playwright install --with-deps chromium
+        
+      - name: Run E2E Tests
+        run: npm run test:e2e
+        
+      - name: Upload Playwright report
+        uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: playwright-report
+          path: playwright-report/
+          retention-days: 7
+
+  regression:
+    runs-on: ubuntu-latest
+    needs: [frontend, backend, commitlint]
+    
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20.x'
+          cache: 'npm'
+          
+      - name: Install dependencies
+        run: npm ci
+        
+      - name: Run Regression Tests
+        run: npm run test:regression
+        
+      - name: Upload snapshot diffs
+        uses: actions/upload-artifact@v4
+        if: failure()
+        with:
+          name: snapshot-diffs
+          path: tests/regression/**/__diff_output__/
+          retention-days: 7
+
+  lighthouse:
+    runs-on: ubuntu-latest
+    needs: [frontend]
+    
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20.x'
+          cache: 'npm'
+          
+      - name: Install dependencies
+        run: npm ci
+        
+      - name: Build
+        run: npm run build
+        
+      - name: Run Lighthouse CI
+        run: npm run test:lighthouse
+        continue-on-error: true