refactor: 移除冗余注释和描述，优化管理员模块的代码结构

src/modules/auth/meta.ts

@@ -1,5 +1,5 @@
 export const authModuleMeta = {
-  segment: "auth",
+  segment: "login",
   title: "登录",
-  description: "账号、密码与图形验证码登录；对接 Laravel Sanctum。",
+  description: "",
 } as const;