/api/mek/register, /api/mek/register/initial Endpoint에서 MEK에 대한 서명을 요구하도록 변경

src/lib/server/db/mek.ts

@@ -2,7 +2,7 @@ import { and, or, eq, lt, desc } from "drizzle-orm";
 import db from "./drizzle";
 import { mek, clientMek, userClient } from "./schema";
 
-export interface ClientMek {
+interface ClientMek {
   clientId: number;
   encMek: string;
 }