view .arcconfig @ 40542:d8997c5ce2ff

ui: label prompt and echo messages

I'm going to add a dedicated command-server channel for status messages,
which carries metadata alongside a message text. 'ui.*' label provides a
hint how message text should be processed.

{
    "conduit_uri": "https://phab.mercurial-scm.org/api",
    "repository.callsign": "HG",
    "arc.land.onto.default": "@",
    "base": "hg:.^"
}