fix: add top-level url to prisma.config.ts (required by db push)

prisma.config.ts

@@ -4,6 +4,7 @@ import { defineConfig } from "prisma/config";
 export default defineConfig({
   earlyAccess: true,
   schema: path.join(__dirname, "prisma", "schema.prisma"),
+  url: process.env.DATABASE_URL,
   migrate: {
     async url() {
       return process.env.DATABASE_URL!;