update workflow

.github/workflows/deploy-public.yml

@@ -89,22 +89,18 @@ jobs:
             git commit -m "Initial public branch from main ${COMMIT_HASH}"
             git push origin public
           else
+            # 保存构建产物到临时目录
+            mv public temp_public
+            
             # 更新现有 public 分支
             git fetch origin public
-            git checkout public --
+            git checkout public
             git reset --soft origin/public
-            rm -rf ./*
-            
-            # 确保 public 目录存在
-            if [ ! -d "public" ]; then
-              echo "Error: public directory not found"
-              echo "Current directory contents:"
-              ls -la
-              exit 1
-            fi
             
-            # 复制文件
-            cp -r public/* .
+            # 清理并复制文件
+            rm -rf ./*
+            mv temp_public/* .
+            rm -rf temp_public
             
             git add .