패키지 버전 업데이트 및 SvelteKit 3, Tailwind CSS 4로 마이그레이션

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/lib/server/db/kysely.ts

@@ -1,7 +1,7 @@
 import { Kysely, PostgresDialect } from "kysely";
 import { Migrator } from "kysely/migration";
 import pg from "pg";
-import env from "$lib/server/loadenv";
+import env from "#lib/server/loadenv.js";
 import migrations from "./migrations";
 import type { Database } from "./schema";