feat: adding npm publish automation

Author: EstoesMoises

.github/workflows/npm.yml

@@ -0,0 +1,66 @@
+name: Publish SDK to NPM
+on:
+  push:
+    branches: ["main"]
+    paths:
+      - "sdk/**"
+  workflow_dispatch:
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v3
+        with:
+          version: latest
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: 'pnpm'
+          cache-dependency-path: 'sdk/pnpm-lock.yaml'
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Install dependencies
+        working-directory: ./sdk
+        run: pnpm install --frozen-lockfile
+
+      - name: Build package
+        working-directory: ./sdk
+        run: pnpm build
+
+      - name: Check if version changed
+        id: version-check
+        working-directory: ./sdk
+        run: |
+          PACKAGE_VERSION=$(node -p "require('./package.json').version")
+          NPM_VERSION=$(npm view so-teams-sdk version 2>/dev/null || echo "0.0.0")
+          echo "package_version=$PACKAGE_VERSION" >> $GITHUB_OUTPUT
+          echo "npm_version=$NPM_VERSION" >> $GITHUB_OUTPUT
+          if [ "$PACKAGE_VERSION" != "$NPM_VERSION" ]; then
+            echo "should_publish=true" >> $GITHUB_OUTPUT
+            echo "Version changed from $NPM_VERSION to $PACKAGE_VERSION"
+          else
+            echo "should_publish=false" >> $GITHUB_OUTPUT
+            echo "Version unchanged: $PACKAGE_VERSION"
+          fi
+
+      - name: Publish to NPM
+        if: steps.version-check.outputs.should_publish == 'true'
+        working-directory: ./sdk
+        run: pnpm publish --access public --no-git-checks
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+
+      - name: Create Git tag
+        if: steps.version-check.outputs.should_publish == 'true'
+        run: |
+          git config --local user.email "[email protected]"
+          git config --local user.name "GitHub Action"
+          git tag "sdk-v${{ steps.version-check.outputs.package_version }}"
+          git push origin "sdk-v${{ steps.version-check.outputs.package_version }}"