Add database type.

src/lib/server/db/db.ts

@@ -6,3 +6,4 @@ import { drizzle } from "drizzle-orm/bun-sqlite";
 
 const sqlite = new Database("sqlite.db");
 export const db = drizzle({ client: sqlite, schema: { ...schema1, ...schema2, ...schema3 } });
+export type DB = typeof db;