feat: 批量编辑API Keys功能优化和Bug修复

- 添加批量编辑API Keys路由和验证逻辑
- 修复标签操作（添加、移除、替换）功能
- 新增批量编辑前端组件，支持共享账号池选择
- 完善Bedrock账户显示和绑定功能
- 优化账户选择UI，统一所有平台选项
- 修复前端构建错误和代码格式问题
- 添加comprehensive测试场景文档

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

web/admin-spa/package.json

@@ -21,12 +21,14 @@
     "vue-router": "^4.2.5"
   },
   "devDependencies": {
+    "@playwright/test": "^1.55.0",
     "@vitejs/plugin-vue": "^4.5.2",
     "@vue/eslint-config-prettier": "^10.2.0",
     "autoprefixer": "^10.4.16",
     "eslint": "^8.55.0",
     "eslint-plugin-prettier": "^5.5.4",
     "eslint-plugin-vue": "^9.19.2",
+    "playwright": "^1.55.0",
     "postcss": "^8.4.32",
     "prettier": "^3.1.1",
     "prettier-plugin-tailwindcss": "^0.6.14",