chore(db): update globalForPrisma assignment for production environment

.env.example

@@ -1,4 +1,6 @@
 # Database
+# Add connection_limit and pool_timeout for serverless/production environments:
+# Example: ?schema=public&connection_limit=5&pool_timeout=10
 DATABASE_URL="postgresql://postgres:postgres@localhost:5432/prompts_chat?schema=public"
 
 # NextAuth

src/lib/db.ts

@@ -13,4 +13,4 @@ export const db =
         : ["error"],
   });
 
-if (process.env.NODE_ENV !== "production") globalForPrisma.prisma = db;
+globalForPrisma.prisma = db;