fix public dev env deploy

[rgarcia]

getting some cross-origin errors from clerk

GET https://clerk.onmetal.dev/v1/client?_clerk_js_version=4.73.2 400 (Bad Request)

{
    "errors": [
        {
            "message": "Invalid HTTP Origin header",
            "long_message": "The Request HTTP Origin header must be equal to or a subdomain of the requesting URL.",
            "code": "origin_invalid"
        }
    ],
    "clerk_trace_id": "b1fead98245203a3fa318998961b7786"
}

might need to configure a CNAME to map railway's host to something on onmetal.dev

more info here potentially: https://clerk.com/docs/deployments/set-up-preview-environment

[linear[bot]]

MET-39 fix public dev env deploy