STOP 2 — Hetzner snapshot (the rollback)
========================================
Confirmed by the operator in the Hetzner console, 2026-08-18 ~09:27 UTC (11:27 CEST).

  Snapshot ID   : 421440873
  Description   : felhom-hetzner-20260818
  Image size    : 15.06 GB
  Status        : Available   <-- COMPLETE, not merely started
  Created       : "less than a minute ago" as displayed at confirmation
  Server        : felhom-hetzner #147604682 (CX33, 167.233.158.164)
  Hetzner project: 15217960 (Felhom.eu)

This is the rollback point for the 4.2.2-1 -> 4.2.5-1 upgrade performed in
Step 4. It was taken on a RUNNING server: Hetzner's own console recommends
powering off first for disk consistency, and that was not done -- a
deliberate trade, because powering off ep0 takes the only off-premises copy
offline and the upgrade being guarded is a userspace package install that
touches neither the datastore nor the boot path.

WHAT THIS SNAPSHOT DOES AND DOES NOT COVER:
  covers     - the 38 GB system disk /dev/sda (root), i.e. the PBS packages,
               unit files, /etc/systemd drop-ins, nftables and wg config.
  DOES NOT   - /mnt/pbs-datastore. That is /dev/sdb, a separate 100 GB
               VOLUME, and Hetzner server snapshots do not include attached
               volumes. The backup data is therefore NOT protected by this
               snapshot.
  Consequence: rolling back restores the software state, not the datastore.
  This is acceptable for THIS change because the upgrade writes no datastore
  content -- but it must not be mistaken for a datastore backup, and any
  future runbook step that could touch /mnt/pbs-datastore needs a different
  safeguard than this one.
