feat: 更新 Playwright 工作流，增加以KB为单位的构建大小统计

.github/workflows/playwright.yaml

@@ -23,8 +23,9 @@ jobs:
           echo "📊 构建大小统计:"
           echo "----------------------------------------"
           echo "🔹 人类可读格式: $(du -sh dist | cut -f1)"
-          echo "🔹 以MB为单位: $(du -sm dist | cut -f1) MB"
-          echo "🔹 文件总数: $(find dist -type f | wc -l) 个文件"
+          echo "🔹 以MB为单位:  $(du -sm dist | cut -f1) MB"
+          echo "🔹 以KB为单位:  $(du -sk dist | cut -f1) KB"
+          echo "🔹 文件总数:    $(find dist -type f | wc -l) 个文件"
           echo "----------------------------------------"
       - name: 部署到 Surge
         id: surge_deploy