Writes partner confs from RAM cache to /boot/config/.cache/vv/d/ while
remote is offline, and removes the backup when remote comes back. Called
each minute via SYSTEM_WATCHDOG_SCRIPTS so crashes and power loss are
covered — not just graceful shutdowns.
conf_cache_save.sh runs first on array stop — snapshots partner confs from RAM
cache to /boot/config/varaverk/conf_bak/ before anything else shuts down.
conf_cache_restore.sh runs after conf_sync.sh on array start — if partner was
unreachable and RAM cache is incomplete, loads the backup into RAM then removes
it. Normal reboots: backup written, fresh pull succeeds, backup deleted unused.
Edge case (partner down at boot): backup fills the gap so fallback.sh has the
partner vars it needs to operate correctly.
Web files now served via symlink to the git repo so git pull changes survive
reboots without rebuilding the txz. Also includes: docker pull/rebuild/restart
with live log streaming, arr_profile_enforcer for Sonarr/Radarr quality
profiles, monitor page cache fix (background writer now in cron), and
ARR_KIDS/SONARR/RADARR profile name vars in master.conf.
Gmer4Lfe