ci(i18n): 添加国际化工作流

- 新增 i18n.yml 文件，配置国际化工作流
- 工作流触发条件包括 i18n 分支推送和 docs 目录下的 PR
- 步骤包括检出代码、设置 Node.js 和 Deno 环境
- 使用 ai-markdown-translator 工具翻译文档

.github/workflows/i18n.yml

@@ -0,0 +1,50 @@
+name: i18n
+
+on:
+  push:
+    branches:
+      - i18n
+  pull_request:
+    paths:
+      - docs/**
+
+jobs:
+  i18n:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - run: corepack enable
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: 'pnpm'
+      - uses: denoland/setup-deno@v2
+        with:
+          deno-version: v2.x
+
+      - run: npx ai-markdown-translator -i ./docs -e md -l chinese
+
+      - name: Commit and push changes if any
+        run: |
+          if git diff --exit-code; then
+            echo "No changes to commit"
+          else
+            git config --local user.email "[email protected]"
+            git config --local user.name "GitHub Action"
+            git config advice.ignoredHook false
+            git commit -am "i18n: translate docs"
+            git push -f origin i18n
+          fi
+
+      - name: Create or update pull request
+        run: |
+          pr_exists=$(gh pr list --state open --head i18n | wc -l)
+          if [ "$pr_exists" -eq 0 ]; then
+            gh pr create --title "i18n: translate docs" --body "i18n: translate docs"
+          else
+            gh pr edit --title "i18n: translate docs" --body "i18n: translate docs"
+          fi