Fix: Downgrade auf Prisma 6 für Kompatibilität

lib/prisma.ts

@@ -4,14 +4,9 @@ const globalForPrisma = globalThis as unknown as {
   prisma: PrismaClient | undefined
 }
 
-const createPrismaClient = () => {
-  return new PrismaClient({
-    datasourceUrl: process.env.DATABASE_URL,
-    log: process.env.NODE_ENV === 'development' ? ['query', 'error', 'warn'] : ['error'],
-  })
-}
-
-export const prisma = globalForPrisma.prisma ?? createPrismaClient()
+export const prisma = globalForPrisma.prisma ?? new PrismaClient({
+  log: process.env.NODE_ENV === 'development' ? ['query', 'error', 'warn'] : ['error'],
+})
 
 if (process.env.NODE_ENV !== 'production') globalForPrisma.prisma = prisma
 

package.json

@@ -9,7 +9,7 @@
     "lint": "eslint"
   },
   "dependencies": {
-    "@prisma/client": "^7.2.0",
+    "@prisma/client": "^6.19.1",
     "@radix-ui/react-label": "^2.1.8",
     "@radix-ui/react-slot": "^1.2.4",
     "class-variance-authority": "^0.7.1",
@@ -17,7 +17,7 @@
     "lucide-react": "^0.562.0",
     "next": "16.1.1",
     "next-themes": "^0.4.6",
-    "prisma": "^7.2.0",
+    "prisma": "^6.19.1",
     "react": "19.2.3",
     "react-dom": "19.2.3",
     "tailwind-merge": "^3.4.0",

prisma/schema.prisma

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