Add coverage prettification and sorting functionality

- Introduced `prettify.css` for syntax highlighting in coverage reports.
- Added `prettify.js` to handle code formatting and highlighting.
- Included `sort-arrow-sprite.png` for sort indicators in the coverage table.
- Implemented `sorter.js` to enable sorting and filtering of coverage summary tables.
- Added a search box for filtering table rows based on user input.

ccw/frontend/src/locales/zh/settings.json

@@ -26,14 +26,21 @@
   },
   "cliTools": {
     "title": "CLI 工具",
-    "description": "配置 CLI 工具设置",
+    "description": "配置 CLI 工具设置，当前默认工具：",
     "enabled": "已启用",
     "disabled": "已禁用",
     "default": "默认",
     "setDefault": "设为默认",
     "primaryModel": "主模型",
     "secondaryModel": "辅助模型",
-    "expand": "展开详情"
+    "expand": "展开详情",
+    "envFile": "环境变量文件 (.env)",
+    "envFilePlaceholder": "例如：~/.gemini/.env",
+    "envFileHint": "CLI 执行前加载的 .env 文件路径，用于设置 API Key 等环境变量",
+    "saveToConfig": "保存到配置文件",
+    "saving": "保存中...",
+    "configSaved": "配置已保存到 ~/.claude/cli-tools.json",
+    "configSaveError": "保存配置失败"
   },
   "display": {
     "title": "显示设置",