feat: add CI/CD pipeline for SDK

.github/workflows/deploy.yml

@@ -0,0 +1,87 @@
+name: CI/CD Pipeline - SDK
+
+on:
+  push:
+    branches: [ main ]
+
+jobs:
+  build:
+    name: Build SDK
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        package: [lib, demo]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Install dependencies
+        working-directory: ./${{ matrix.package }}
+        run: npm install
+
+      - name: Build
+        working-directory: ./${{ matrix.package }}
+        run: npm run build
+
+  publish:
+    name: Publish to NPM
+    runs-on: ubuntu-latest
+    needs: build
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Install dependencies
+        working-directory: ./lib
+        run: npm install
+
+      - name: Build
+        working-directory: ./lib
+        run: npm run build
+
+      - name: Check if version changed
+        id: version_check
+        working-directory: ./lib
+        run: |
+          PACKAGE_VERSION=$(node -p "require('./package.json').version")
+          PUBLISHED_VERSION=$(npm view $(node -p "require('./package.json').name") version 2>/dev/null || echo "0.0.0")
+          if [ "$PACKAGE_VERSION" != "$PUBLISHED_VERSION" ]; then
+            echo "changed=true" >> $GITHUB_OUTPUT
+            echo "New version detected: $PACKAGE_VERSION (published: $PUBLISHED_VERSION)"
+          else
+            echo "changed=false" >> $GITHUB_OUTPUT
+            echo "Version unchanged: $PACKAGE_VERSION"
+          fi
+
+      - name: Publish to NPM
+        if: steps.version_check.outputs.changed == 'true'
+        working-directory: ./lib
+        run: npm publish --access public
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+
+      - name: Create Git Tag
+        if: steps.version_check.outputs.changed == 'true'
+        working-directory: ./lib
+        run: |
+          PACKAGE_VERSION=$(node -p "require('./package.json').version")
+          git config user.name github-actions
+          git config user.email github-actions@github.com
+          git tag -a "v$PACKAGE_VERSION" -m "Release v$PACKAGE_VERSION"
+          git push origin "v$PACKAGE_VERSION"
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}