v0.11.1

Fixed

• Deleting an event type with bookings in its history explains itself. Calnode
  refuses to delete an event type that has bookings, including cancelled ones, so the
  booking history stays intact — but it answered with a generic "internal error" instead
  of saying so. SQLite reports a constraint declared ON DELETE RESTRICT under a
  different code than the default, and Calnode only recognised the default, so every
  delete that hit this guard fell through to a server error. You now get the actionable
  message, and "deactivate it instead" is what it says to do.
• Round-robin booking no longer picks a host who is unavailable (#146). A rotation
  booking could assign a host who cannot take the slot; such a host is now skipped.
• The dashboard stops advertising events you have switched off. "Your booking links"
  listed archived and deactivated event types. They still answer their booking URL, so the
  list read as live and invited bookings for meetings you had turned off.
• NS8 module images publish for both architectures. The release step assembled the
  multi-arch manifest from the runner's local container storage, which on the release
  runner did not contain the images it had just built, so no module release has ever
  published a correct multi-arch image. Arches are now read from the registry, where the
  build already put them. Releases are additionally gated on what actually reached the
  registry — architecture, the org.nethserver.images label, and that the app image the
  label names is itself multi-arch — so an amd64-only publish fails the build instead of
  shipping quietly.

Changed

• NS8 install docs state what :latest really is. The NethServer module's :latest,
  :0.10 and :0.10.1 are one amd64-only build: fine on amd64 nodes, and it fails on
  arm64 (a Pi 5, for example). That release predates multi-arch publishing, so each
  architecture was pushed straight onto the public tags. :edge is correct on both. The
  docs also say plainly that arm64 has only been exercised under CPU emulation, not on
  real hardware.