页面嵌套修改

frontend-web/src/env.ts

@@ -20,6 +20,13 @@ export function readRuntimeFlag(key: string): boolean {
   return readRuntimeEnv(key) === "true";
 }
 
+/**
+ * Read an integer setting supplied by ``runtime-config.js``.
+ *
+ * Runtime configuration is editable after the frontend is built, so validate
+ * numeric values here instead of letting an invalid deployment value bypass a
+ * UI constraint that the backend cannot accept.
+ */
 export const env = {
   NEXT_PUBLIC_BACKEND_BASE_URL: readRuntimeEnv("VITE_BACKEND_BASE_URL"),
   NEXT_PUBLIC_LANGGRAPH_BASE_URL: readRuntimeEnv("VITE_LANGGRAPH_BASE_URL"),