Improve client

src/models/repositories/user.ts

@@ -198,6 +198,7 @@ export class UserRepository extends Repository<User> {
 				uri: user.uri,
 				createdAt: user.createdAt.toISOString(),
 				updatedAt: user.updatedAt ? user.updatedAt.toISOString() : null,
+				lastFetchedAt: user.lastFetchedAt?.toISOString(),
 				bannerUrl: user.bannerUrl,
 				bannerBlurhash: user.bannerBlurhash,
 				bannerColor: null, // 後方互換性のため