Add cross-env devDependency

Author: YoYo178

backend/package.json

@@ -13,10 +13,10 @@
   "scripts": {
     "build": "ts-node ./scripts/build.ts",
     "clean-install": "rm -rf ./node_modules && rm -r pnpm-lock.yaml && pnpm install",
-    "dev": "NODE_ENV=development ts-node ./src",
-    "dev:hot": "NODE_ENV=development nodemon --exec \"ts-node ./src\" --watch ./src --ext .ts",
+    "dev": "cross-env NODE_ENV=development ts-node ./src",
+    "dev:hot": "cross-env NODE_ENV=development nodemon --exec \"ts-node ./src\" --watch ./src --ext .ts",
     "lint": "eslint",
-    "start": "NODE_ENV=production node -r ./config.js ./dist",
+    "start": "cross-env NODE_ENV=production node -r ./config.js ./dist",
     "type-check": "tsc --noEmit"
   },
   "engines": {
@@ -67,6 +67,7 @@
     "@types/nodemailer": "^7.0.3",
     "@types/supertest": "^6.0.3",
     "@types/validator": "^13.15.4",
+    "cross-env": "^10.1.0",
     "eslint": "^9.39.1",
     "eslint-plugin-n": "^17.23.1",
     "find": "^0.3.0",