Add corss-env dependency

Author: funmise

server/package.json

@@ -19,6 +19,7 @@
     "@types/multer": "^1.4.12",
     "@types/node": "^22.7.6",
     "@types/sqlite3": "^3.1.11",
+    "cross-env": "^7.0.3",
     "jest": "^29.7.0",
     "nodemon": "^3.1.7",
     "ts-jest": "^29.2.5",