refactor: fix stale imports

shared/modules/quest/quest.service.ts

@@ -1,6 +1,6 @@
 import { userQuests } from "@db/schema";
 import { eq, and } from "drizzle-orm";
-import { UserError } from "@/lib/errors";
+import { UserError } from "@shared/lib/errors";
 import { DrizzleClient } from "@shared/db/DrizzleClient";
 import { economyService } from "@shared/modules/economy/economy.service";
 import { levelingService } from "@shared/modules/leveling/leveling.service";