ci: add GitHub Actions workflows for release and CNB synchronization

.github/workflows/release.yml

@@ -0,0 +1,51 @@
+name: Release Build
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  build-and-release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      
+      - name: Check if tag is on main branch
+        run: |
+          git fetch origin main
+          if ! git merge-base --is-ancestor ${{ github.sha }} origin/main; then
+            echo "Tag is not on main branch"
+            exit 1
+          fi
+      
+      - uses: pnpm/action-setup@v2
+        with:
+          version: 8
+      
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'pnpm'
+      
+      - run: pnpm install
+      
+      - run: pnpm build:release
+      
+      - name: Package files
+        run: |
+          cd build
+          zip -r ../web.vocechat.zip . -x robots.txt CNAME email.tpl.html widget_demo.html
+          cd ..
+      
+      - name: Create Release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: |
+            web.vocechat.zip
+            build/web.vocechat.md5
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+

.github/workflows/sync-cnb.yml

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+# .github/workflows/sync-cnb.yml
+
+name: Sync to CNB
+on: [push]
+
+jobs:
+  sync:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      
+      - name: Sync to CNB Repository
+        uses: docker://tencentcom/git-sync
+        env:
+          PLUGIN_TARGET_URL: "https://cnb.cool/haorwen/Privoce/vocechat-web.git"
+          PLUGIN_AUTH_TYPE: "https"
+          PLUGIN_USERNAME: "cnb"
+          PLUGIN_PASSWORD: ${{ secrets.CNB_TOKEN }}
+          PLUGIN_FORCE: "true"