Feature: user upload artwork

server/package.json

@@ -12,6 +12,7 @@
   "devDependencies": {
     "@types/express": "^5.0.3",
     "@types/morgan": "^1.9.10",
+    "@types/multer": "2.0.0",
     "eslint": "9.38.0",
     "prettier": "3.6.2",
     "typescript": "5.9.3"
@@ -23,6 +24,7 @@
     "cookie-parser": "^1.4.7",
     "express": "^5.1.0",
     "morgan": "^1.10.1",
+    "multer": "2.0.2",
     "prisma": "^6.17.1"
   }
 }