chore: update @prisma/client to version 7.10.0 and add prisma.config.ts for configuration management

- Updated @prisma/client in shared package.json from ^6.0.0 to ^7.10.0.
- Modified stack.md to include generated Prisma client directory and Prisma CLI config file.
- Added prisma.config.ts for managing Prisma configuration, including datasource URL and migrations path.

packages/shared/package.json

@@ -16,7 +16,7 @@
     "zod": "^3.24.0"
   },
   "devDependencies": {
-    "@prisma/client": "^6.0.0",
+    "@prisma/client": "^7.10.0",
     "typescript": "^5.7.0"
   }
 }