优化: AI Chat全栈多批审查修复与架构清理(risk_level清理/路由解耦/工具渲染/测试补测/死代码)

src/i18n/en/error.ts

@@ -0,0 +1,7 @@
+export default {
+  error: {
+    title: 'Render Error',
+    desc: 'This section failed to render due to an internal error. Try reloading.',
+    retry: 'Retry',
+  },
+}