feat(plugin-sdk): add TypeScript SDK for Infinite Canvas plugins with automatic JSX and build support

.github/workflows/publish-plugins.yml

@@ -0,0 +1,47 @@
+name: Publish Official Plugins
+
+# 构建官方插件并把产物(bundle + 清单)强推到孤儿分支 plugins-dist。
+# 与 github-pages.yml 一致,在打版本 tag 时触发 —— 发版时 web 与官方插件一起发布。
+# 前端经 jsDelivr 从该分支远程拉取;构建产物不进 main、不进 git。
+on:
+  push:
+    tags: ["v*"]
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+concurrency:
+  group: publish-plugins
+  cancel-in-progress: false
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+
+      - name: Install build dependencies
+        working-directory: plugins/canvas/registry
+        run: npm install --no-audit --no-fund
+
+      - name: Build official plugins
+        working-directory: plugins/canvas/registry
+        run: npm run build
+
+      - name: Publish to plugins-dist branch
+        working-directory: plugins/canvas/registry/dist
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          git init -q
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git checkout -q -b plugins-dist
+          git add -A
+          git commit -q -m "publish official plugins @ ${GITHUB_SHA::7}"
+          git push -f "https://x-access-token:${GH_TOKEN}@github.com/${GITHUB_REPOSITORY}.git" plugins-dist