[F] Fix preview action?

.github/workflows/preview.yml

@@ -1,11 +1,9 @@
 name: PR Preview
 
 on:
-  pull_request:
-    # Trigger the workflow on these PR events:
+  pull_request_target:
     types: [opened, synchronize, reopened]
-    # Limit to specific branches:
-    branches: [ main, develop ]
+    branches: [main]
 
 jobs:
   build:
@@ -17,7 +15,11 @@ jobs:
       pull-requests: write
 
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout PR branch
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.ref }}
+
       - uses: actions/setup-node@v4
         with:
           node-version: 20
@@ -36,7 +38,7 @@ jobs:
           accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
           gitHubToken: ${{ secrets.GITHUB_TOKEN }}
           command: pages deploy dist --project-name=data-preview --branch=pr-${{ github.event.pull_request.number }}
-      
+
       - name: Pull request comment
         uses: actions/github-script@v6
         with:
@@ -45,7 +47,7 @@ jobs:
             const now = new Date().toISOString().substring(0, 19).replace('T', ' ');
             const reviewBody = `🐱 感谢贡献！\n\n部署了预览，在这里哦: https://pr-${prNumber}.data-preview.pages.dev\n\n🕒 最后更新: ${now} (UTC)`;
             
-            // 获取现有 review
+            // Look for an existing review comment containing the preview message.
             const { data: reviews } = await github.rest.pulls.listReviews({
               owner: context.repo.owner,
               repo: context.repo.repo,
@@ -53,7 +55,7 @@ jobs:
             });
             const existingReview = reviews.find(review => review.body.includes('部署了预览'));
             if (existingReview) {
-              // 如果已经有 review，更新它
+              // Update the existing review comment.
               await github.rest.pulls.updateReview({
                 owner: context.repo.owner,
                 repo: context.repo.repo,
@@ -62,7 +64,7 @@ jobs:
                 body: reviewBody,
               });
             } else {
-              // 如果没有 review，创建新的 review
+              // Create a new review comment.
               await github.rest.pulls.createReview({
                 owner: context.repo.owner,
                 repo: context.repo.repo,