Prisma init.

backend/package.json

@@ -28,6 +28,7 @@
     "@nestjs/graphql": "^10.1.1",
     "@nestjs/mapped-types": "*",
     "@nestjs/platform-express": "^9.0.0",
+    "@prisma/client": "4.3.1",
     "apollo-server-express": "^3.10.2",
     "graphql": "^16.6.0",
     "reflect-metadata": "^0.1.13",
@@ -46,6 +47,7 @@
     "@types/supertest": "^2.0.11",
     "jest": "28.1.3",
     "prettier": "^2.3.2",
+    "prisma": "4.3.1",
     "source-map-support": "^0.5.20",
     "supertest": "^6.1.3",
     "ts-jest": "28.0.8",