Fallback runs as a bare subprocess (cmdline: bash .../Fallback/fallback.sh),
not via /tmp/user.scripts, so user_scripts_stop.sh cannot find it.
Adding --stop mode closes that gap in the array shutdown sequence.
fallback.sh --stop: reads lock file (/tmp/unraid_locks/fallback.lock) to
get the running PID, sends SIGTERM (hits the existing trap that sets
FALLBACK_RUNNING=false), waits up to 10s, SIGKILLs if still alive.
master.conf: insert Fallback/fallback.sh --stop as step 2 in
ARRAY_STOP_SCRIPTS (after user_scripts_stop, before rsync_stop).
user_script_plug-in.sh: update ARRAY STOPPING block to show 5-step order
and add v2.5 changelog entry.
Gmer4Lfe
aa6d165725