feat(auth): integrate Prisma adapter for Auth.js authentication

package.json

@@ -9,6 +9,8 @@
     "lint": "next lint"
   },
   "dependencies": {
+    "@auth/prisma-adapter": "^2.7.4",
+    "@prisma/client": "^6.1.0",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "lucide-react": "^0.469.0",
@@ -20,13 +22,14 @@
     "tailwindcss-animate": "^1.0.7"
   },
   "devDependencies": {
-    "typescript": "^5",
     "@types/node": "^20",
     "@types/react": "^18",
     "@types/react-dom": "^18",
-    "postcss": "^8",
-    "tailwindcss": "^3.4.1",
     "eslint": "^8",
-    "eslint-config-next": "15.0.3"
+    "eslint-config-next": "15.0.3",
+    "postcss": "^8",
+    "prisma": "^6.1.0",
+    "tailwindcss": "^3.4.1",
+    "typescript": "^5"
   }
 }

src/auth.ts

@@ -1,5 +1,8 @@
 import NextAuth from "next-auth";
+import { prisma } from "@/lib/prisma";
+import { PrismaAdapter } from "@auth/prisma-adapter";
 
 export const { handlers, signIn, signOut, auth } = NextAuth({
+  adapter: PrismaAdapter(prisma),
   providers: [],
 });

src/lib/prisma.ts

@@ -0,0 +1,7 @@
+import { PrismaClient } from "@prisma/client";
+
+const globalForPrisma = globalThis as unknown as { prisma: PrismaClient };
+
+export const prisma = globalForPrisma.prisma || new PrismaClient();
+
+if (process.env.NODE_ENV !== "production") globalForPrisma.prisma = prisma;