Single SSH probe per remote checks all three conditions in one call:
- plugin cfg exists (varaverk.cfg present with SCRIPTS_DIR)
- Configurations/ dir exists at that path
- master.conf already present on remote
Any failure skips that host entirely rather than pushing blind.
Uses the discovered SCRIPTS_DIR as the SCP destination, not ours.
Instead of assuming the remote uses the same appdata path as the local
host, SSH-grep their varaverk.cfg first and SCP to their actual
Configurations/ dir. Falls back to /mnt/user/appdata/Varaverk if the
plugin isn't installed or the file can't be read.
vv_push_master_conf() in config.php: finds all remote HOST* entries,
resolves Tailscale IPs, SCPs master.conf to each.
rawconf.php calls it after a successful write when file=master.conf.
Scheduler save button shows sync status: "✓ Saved · synced to HOST2"
or "✓ Saved · push failed: HOST2" on error.
Also fix path bug in partnership_transfer.sh — was SCPing to
appdata root instead of Configurations/.
Gmer4Lfe