[main]: Update home-server

docs/home-server/host.md

@@ -10,6 +10,8 @@ sources:
     reference: "Hardware, OS, bare-metal Docker and data-root confirmation, 2026-10-06"
   - kind: owner-report
     reference: "hostnamectl, timedatectl, user/group records, Docker info/version and systemd units, 2026-10-06"
+  - kind: owner-report
+    reference: "Owner does not recognize backup-puller account; no independent host-config archive, 2026-10-06"
 related: [home-server.reference, home-server.storage, home-server.networking, home-server.deployment, home-server.operations]
 update_triggers: [hardware-change, os-upgrade, kernel-upgrade, docker-reconfiguration, account-change, unit-change]
 unknowns:
@@ -63,7 +65,7 @@ Supplied Docker unit has no explicit `/data` mount dependency or ordering agains
 | Account / group | Identity |
 | --- | --- |
 | `jay` | UID/GID `1000:1000`; `/home/jay`; bash; member of `sudo`, `docker`, `video`, `backups` |
-| `backup-puller` | UID/GID `1001:1001`; `/home/backup-puller`; bash; member of `backups`; purpose unconfirmed |
+| `backup-puller` | UID/GID `1001:1001`; `/home/backup-puller`; bash; member of `backups`; origin/purpose not recognized by owner |
 | `backups` | Shared group; GID `1002` |
 
 WireGuard and rclone: apt-managed. `wg-quick@wg0.service` is active in the supplied
@@ -71,4 +73,8 @@ snapshot. No host-level nginx on Jupiter; nginx still exists in application
 containers. `unattended-upgrades.service` is enabled; effective update policy
 not supplied.
 
+No independent host-configuration archive is maintained. `backup-puller` must
+not be assumed to perform backups; identify SSH/cron/service dependencies before
+removing or repurposing it.
+
 Hardware/versions are a dated snapshot, not live telemetry.