Help exposing wrangler env environment runtime variables to build (vite plugin)

{
  ...,
  "env": {
    "staging": {
      "vars": {
        "VITE_URL": "https://example-stg.com/",
      }, 
    },
    "production": {
      "vars": {
        "VITE_URL": "https://example.com/",
      }, 
    },
  },
}