fix: prisma.config.ts use env() helper to load .env file

prisma.config.ts

@@ -1,15 +1,15 @@
 import path from "node:path";
-import { defineConfig } from "prisma/config";
+import { defineConfig, env } from "prisma/config";
 
 export default defineConfig({
   earlyAccess: true,
   schema: path.join(__dirname, "prisma", "schema.prisma"),
   datasource: {
-    url: process.env.DATABASE_URL!,
+    url: env("DATABASE_URL"),
   },
   migrate: {
     async url() {
-      return process.env.DATABASE_URL!;
+      return env("DATABASE_URL")!;
     },
   },
 } as any);