DEK 버전을 프론트엔드에서 명시적으로 관리하도록 변경

src/routes/api/file/[id]/+server.ts

@@ -16,15 +16,14 @@ export const GET: RequestHandler = async ({ cookies, params }) => {
   if (!zodRes.success) error(400, "Invalid path parameters");
   const { id } = zodRes.data;
 
-  const { createdAt, mekVersion, encDek, encContentIv, encName } = await getFileInformation(
-    userId,
-    id,
-  );
+  const { createdAt, mekVersion, encDek, dekVersion, encContentIv, encName } =
+    await getFileInformation(userId, id);
   return json(
     fileInfoResponse.parse({
       createdAt,
       mekVersion,
       dek: encDek,
+      dekVersion,
       contentIv: encContentIv,
       name: encName.ciphertext,
       nameIv: encName.iv,