DATABASE_URL環境変数がなくても動くよう修正

Author: na-trium-144

prisma.config.ts

@@ -1,5 +1,5 @@
 import "dotenv/config";
-import { defineConfig, env } from "prisma/config";
+import { defineConfig } from "prisma/config";
 
 export default defineConfig({
   schema: "prisma/schema.prisma",
@@ -8,6 +8,6 @@ export default defineConfig({
   },
   engine: "classic",
   datasource: {
-    url: env("DATABASE_URL"),
+    url: process.env.DATABASE_URL || "",
   },
 });