Update Prisma to v7 and add better-sqlite3 adapter

Upgraded Prisma and related dependencies to version 7.0.1 and added @prisma/adapter-better-sqlite3 and better-sqlite3 to support the new adapter. This enables improved SQLite integration and compatibility with the latest Prisma features.

prisma.config.ts

@@ -2,10 +2,7 @@ import 'dotenv/config'
 import { defineConfig } from 'prisma/config'
 
 export default defineConfig({
-  schema: {
-    kind: 'single',
-    filePath: 'prisma/schema.prisma',
-  },
+  schema: 'prisma/schema.prisma',
   studio: {
     adapter: async () => {
       const { PrismaBetterSqlite3 } = await import('@prisma/adapter-better-sqlite3')