db/ fix DB env var name

drizzle.config.ts

@@ -1,10 +1,10 @@
-import type { Config } from "drizzle-kit"
+import type { Config } from "drizzle-kit";
 
 export default {
   dialect: "postgresql",
   schema: "./src/lib/schema.ts",
   out: "./drizzle",
   dbCredentials: {
-    url: process.env.DATABASE_URL!,
+    url: process.env.POSTGRES_URL!,
   },
-} satisfies Config
+} satisfies Config;