Implement calendar module

src/lib/db.ts

@@ -1,7 +1,10 @@
 import { drizzle } from "drizzle-orm/postgres-js";
 import postgres from "postgres";
-import * as schema from "@/modules/_core/schema";
+import * as coreSchema from "@/modules/_core/schema";
+import * as calendarSchema from "@/modules/calendar/schema";
 
 const client = postgres(process.env["DATABASE_URL"]!);
 
+const schema = { ...coreSchema, ...calendarSchema };
+
 export const db = drizzle(client, { schema });