Upgrade to Prisma 7 with adapter pattern

- Update prisma and @prisma/client to ^7.0.0
- Add @prisma/adapter-pg for PostgreSQL connections
- Create prisma.config.ts for datasource configuration
- Remove url from schema.prisma datasource block
- Update prisma.ts to use PrismaPg adapter pattern

Breaking change in Prisma 7: datasource url now configured
via prisma.config.ts instead of schema.prisma

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

package.json

@@ -21,7 +21,8 @@
     "@auth/prisma-adapter": "^2.7.4",
     "@aws-sdk/client-s3": "^3.968.0",
     "@hookform/resolvers": "^3.9.1",
-    "@prisma/client": "^6.2.1",
+    "@prisma/adapter-pg": "^7.0.0",
+    "@prisma/client": "^7.0.0",
     "@radix-ui/react-avatar": "^1.1.11",
     "@radix-ui/react-checkbox": "^1.3.3",
     "@radix-ui/react-dialog": "^1.1.4",
@@ -78,7 +79,7 @@
     "jsdom": "^27.0.1",
     "postcss": "^8.4.49",
     "prettier": "^3.4.2",
-    "prisma": "^6.2.1",
+    "prisma": "^7.0.0",
     "tailwindcss": "^3.4.17",
     "tsx": "^4.19.2",
     "typescript": "^5.7.3",

prisma/prisma.config.ts

@@ -0,0 +1,12 @@
+import 'dotenv/config'
+import { defineConfig, env } from 'prisma/config'
+
+export default defineConfig({
+  schema: 'prisma/schema.prisma',
+  migrations: {
+    path: 'prisma/migrations',
+  },
+  datasource: {
+    url: env('DATABASE_URL'),
+  },
+})

prisma/schema.prisma

@@ -7,7 +7,7 @@ generator client {
 
 datasource db {
   provider = "postgresql"
-  url      = env("DATABASE_URL")
+  // url configured in prisma.config.ts (Prisma 7+)
 }
 
 // ============================================================================

src/lib/prisma.ts

@@ -1,10 +1,15 @@
 import { PrismaClient } from '@prisma/client'
+import { PrismaPg } from '@prisma/adapter-pg'
 
 const globalForPrisma = globalThis as unknown as {
   prisma: PrismaClient | undefined
 }
 
-export const prisma = globalForPrisma.prisma ?? new PrismaClient()
+const adapter = new PrismaPg({
+  connectionString: process.env.DATABASE_URL!,
+})
+
+export const prisma = globalForPrisma.prisma ?? new PrismaClient({ adapter })
 
 if (process.env.NODE_ENV !== 'production') globalForPrisma.prisma = prisma