[cs] refactor: auth/main 그룹 분리

apps/cs/app/(auth)/layout.tsx

@@ -0,0 +1,17 @@
+import "@/app/styles/base.css";
+
+export const metadata = {
+    title: "유역하수도 통합 정보플랫폼",
+};
+
+export default function AuthLayout({
+    children,
+}: {
+    children: React.ReactNode;
+}) {
+    return (
+        <html lang="ko">
+            <body>{children}</body>
+        </html>
+    );
+}

apps/cs/app/(main)/layout.tsx

@@ -1,4 +1,5 @@
 import type { Metadata } from "next";
+
 import { App } from "@/app";
 
 export const metadata: Metadata = {