linter fixes, env fixes

lib/db/index.ts

@@ -1,8 +1,14 @@
 import { drizzle } from 'drizzle-orm/node-postgres';
 import * as schema from './schema';
-import 'dotenv/config';
+import dotenv from 'dotenv';
+dotenv.config({ path: ['.env.local', '.env'] });
 
-export const db = drizzle(process.env.POSTGRES_URL!, { schema });
+const DATABASE_URL = process.env.POSTGRES_URL;
+if (!DATABASE_URL) {
+  throw new Error('POSTGRES_URL environment variable is required');
+}
+
+export const db = drizzle(DATABASE_URL, { schema });
 
 // Re-export schema types for convenience
 export * from './schema';