Phoenix FLAME backends for Iroh and Zenoh.

First-class FLAME package. Siblings:

• IngotCluster — Iroh + Zenoh cluster

• Dusk — Zenoh-first cluster

• Crucible — boot the machine

• Gale — HTTP/3

  config :flame, :backend, {Zeiroh.FLAME.Backend, provisioner: :local, overlay: :both}

  {Zeiroh, overlay: :both, live: false} {Zeiroh, package: :ingot_cluster, iroh: true, zenoh: [live: false]} {Zeiroh, package: :dusk, live: false}