fips-ui 0.12.0

Added

• The dashboard under a public domain: over the mesh fips-ui accepts as
  Host the public domain names this node's own fips-pub-domains server answers
  with this node (target self, including * entries) for zones whose claim is
  published, so ui.example.org works like <name>.fips. Names pointing to
  other nodes or left to ordinary DNS stay refused, also under a wildcard.

Fixed

• Copy buttons work when the dashboard is opened over the mesh: plain http on a
  fips0 address has no Clipboard API, so they fall back to the copy command (and
  show the value to copy by hand if that fails too). They are always visible on
  touch screens.
• The copy button next to a hosts-file name copies the npub behind it, not the
  name; the Peers page's DNS row no longer builds a name from the daemon's
  shortened peer label (npub1ab...cdef.fips).
• On NixOS the helper refuses to install or update fips-pub-domains with a clear
  message, instead of failing on the read-only system paths.