fix: återställ url i schema.prisma, ta bort ogiltig datasourceUrl från constructor

backend/prisma/schema.prisma

@@ -4,6 +4,7 @@ generator client {
 
 datasource db {
   provider = "mysql"
+  url      = env("DATABASE_URL")
 }
 
 model Product {

backend/src/prisma/prisma.service.ts

@@ -9,8 +9,7 @@ export class PrismaService
   private readonly logger = new Logger(PrismaService.name);
 
   constructor() {
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    super();
-    super({ datasourceUrl: process.env.DATABASE_URL } as any);
   }
 
   async onModuleInit() {