2e8cd9ca59
The cleanup trap added in 8a0c557 stopped VM 109 unconditionally on EXIT,
which kills the VM during --install/--help or when an operator launched
it manually for debugging. Gate the trap with DR_VM_STARTED_BY_US so it
only fires when the script itself started the VM.
Also remove the 2>/dev/null swallow on qm start so cross-node failures
(e.g. running on a node where the VM is not configured) appear in the
log instead of producing a silent "Failed to start VM 109" in 0 seconds.
Root cause for the 2026-04-25 silent failure: cron lived on pveelite
while VM 109 had been migrated to pvemini; qm start returned an error
that was hidden by the redirect.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>