chore: added cross-env to support Windows environment

Author: kenso312

package.json

@@ -31,7 +31,7 @@
     "lint": "eslint . --fix && sort-package-json",
     "prod": "pnpm start:prod",
     "repl": "pnpm start:repl",
-    "start": "NODE_ENV=production node dist/main",
+    "start": "cross-env NODE_ENV=production node dist/main",
     "start:dev": "nest start --watch",
     "start:prod": "pnpm build && pnpm start",
     "start:repl": "node --watch -r @swc-node/register ./src/utils/repl",
@@ -50,6 +50,7 @@
     "axios": "^1.6.5",
     "class-transformer": "^0.5.1",
     "class-validator": "^0.14.0",
+    "cross-env": "^7.0.3",
     "fastify": "^4.25.2",
     "joi": "^17.11.0",
     "nestjs-pino": "^3.5.0",
@@ -104,4 +105,4 @@
     "node": ">=18",
     "pnpm": ">=8"
   }
-}
+}