fixed 部署bug

.github/workflows/upy.yml

@@ -51,9 +51,11 @@ jobs:
         git config --global user.name "GitHub Actions"
         git config --global user.email "actions@github.com"
         git add content/post
-        if ! git diff-index --quiet HEAD; then
+        if ! git diff --staged --quiet; then
           git commit -m "chore: auto-generate ai comments [skip ci]"
           git push
+        else
+          echo "No changes to commit"
         fi
 
     - name: Generate Friend Circle Data