feat(auth): enterprise authentication and user management

frontend/athena/proxy.ts

@@ -0,0 +1,24 @@
+import { NextRequest, NextResponse } from "next/server";
+
+export function proxy(request: NextRequest) {
+  const token = request.cookies.get("access_token");
+  const isLoginPage = request.nextUrl.pathname === "/login";
+
+  if (isLoginPage && token) {
+    return NextResponse.redirect(new URL("/dashboard", request.url));
+  }
+
+  if (!isLoginPage && !token) {
+    return NextResponse.redirect(new URL("/login", request.url));
+  }
+
+  return NextResponse.next();
+}
+
+export const config = {
+  matcher: [
+    "/login",
+    "/dashboard/:path*",
+    "/users/:path*",
+  ],
+};