The mongo credential authenticates against its own database and the
database is the granted one (mesh_novox_invoice), not the contributed
name the provisioner ignores. Same for the store: the key is sealed to
the derived bucket (mesh-novox-invoice) — the data mirrors in during the
window, the ncloud/photos pattern. And the api gets the route
contribution it always needed: invoicing-api.novox.be is today a traefik
container label, invisible to every file survey, and it must be a grant
before the edge can ever flip.