Files
docs/installer
wtclaude ad7defd471 docs(installer): document aarch64 and the upgrade backup in INSTALL.md
PLAN.md §5.4. The operator guide is the specification of the run, so
these are part of building the phase rather than a write-up after it.

- The download list gains runicgateway-installer-linux-aarch64, with
  `uname -m` as the way to tell, and says plainly that there is no macOS
  and no Windows-on-arm build: the shard dials the sidecar out on
  loopback, so the two share a host, and no ServUO host is either.
- Appendix A3 names the arm64 sidecar asset for the by-hand path, and
  points at the bundle from A1 for the version rather than the one
  written in the example.
- §7's `update` says what a backup is, when one is taken and when one is
  not, and that restoring is the operator's to do -- the guide already
  promised their Bridge.cfg edits survive, and this is the same promise
  for the .cs file they edited that gets overwritten by design.
- --no-backup joins the flags table; --purge's row and the uninstall
  table now name backups alongside the config, the database and the
  cached patch set.
- The paths tables and doctor's sample output gain the backups
  directory and its row.

Co-Authored-By: Claude <noreply@anthropic.com>
2026-08-05 05:53:11 -05:00
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