Add CI workflow to test, lint and build (#20)

* Initial plan

* Add CI workflow for testing, linting, and building

Co-authored-by: Boshen <[email protected]>

* Enhance CI workflow with better build verification

Co-authored-by: Boshen <[email protected]>

* Remove strategy matrix and use Node.js LTS

Co-authored-by: Boshen <[email protected]>

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: Boshen <[email protected]>

Author: Copilot

.github/workflows/ci.yml

@@ -0,0 +1,58 @@
+name: CI
+
+on:
+  push:
+    branches: [ main, develop ]
+  pull_request:
+    branches: [ main, develop ]
+
+jobs:
+  test-lint-build:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js LTS
+        uses: actions/setup-node@v4
+        with:
+          node-version: 'lts/*'
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+
+      - name: Get pnpm store directory
+        shell: bash
+        run: |
+          echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV
+
+      - name: Setup pnpm cache
+        uses: actions/cache@v4
+        with:
+          path: ${{ env.STORE_PATH }}
+          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pnpm-store-
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Lint code
+        run: pnpm lint
+
+      - name: Run tests
+        run: pnpm test
+
+      - name: Build project
+        run: pnpm build
+
+      - name: Check build artifacts
+        run: |
+          if [ -d "apps/dashboard/dist" ]; then
+            echo "✅ Build artifacts created successfully"
+            ls -la apps/dashboard/dist/
+          else
+            echo "❌ Build artifacts not found"
+            exit 1
+          fi