ci: add pipeline

.github/workflows/ci.yml

@@ -0,0 +1,89 @@
+name: CI
+
+on:
+  push:
+    branches: [main, develop]
+  pull_request:
+    branches: [main, develop]
+
+jobs:
+  lint-and-typecheck:
+    name: Lint & Type Check
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'yarn'
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+
+      - name: Run ESLint
+        run: yarn lint
+
+      - name: Run TypeScript type check
+        run: yarn typecheck
+
+      - name: Run Prettier check
+        run: yarn format
+
+  build-and-test:
+    name: Build & Test
+    runs-on: ubuntu-latest
+    needs: lint-and-typecheck
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'yarn'
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+
+      - name: Build application
+        run: yarn build
+
+      - name: Run tests
+        run: yarn test --coverage --watchAll=false
+
+      - name: Report deployment readiness
+        if: github.ref == 'refs/heads/main'
+        run: echo "✅ All checks passed - ready for deployment"
+
+  commitlint:
+    name: Commit Lint
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'yarn'
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+
+      - name: Validate commit messages
+        run: |
+          if [ "${{ github.event_name }}" = "pull_request" ]; then
+            yarn commitlint --from ${{ github.event.pull_request.base.sha }} --to ${{ github.event.pull_request.head.sha }} --verbose
+          else
+            yarn commitlint --from HEAD~1 --to HEAD --verbose
+          fi