Decommission LXC 109 (syncthing)

Container had been stopped since 2026-04-21 and was never re-enabled.
pct destroy 109 --purge cleaned up vm-109-disk-0 on local-lvm and the
config file. /mnt/library/syncthing subtree was already empty at the
time of destruction and is retained as an empty dir (no real data to
migrate or back up).

- README.md, containers/index.md: removed row, moved to "recently
  destroyed" table
- hosts/hubris.md: dropped from /mnt/library subtree list, updated
  containers/index summary line, added changelog entry
- infrastructure/media-permissions.md: dropped from membership table
  and onboarding example, generalised pct-exec gotcha hostname,
  added changelog
- vms/100-zimaos.md: dropped from "existing fleet" enumeration
- containers/102-nfs-export.md: dropped from bind-mount sibling list
  (7 LXCs now, not 8)
- containers/109-syncthing.md: deleted

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

hosts/hubris.md

@@ -19,7 +19,7 @@ Single-node Proxmox VE running 1 VM and 13 LXC containers. The whole homelab.
 | `local-lvm`  | lvmthin   | 856G  | LXC/VM rootfs                          |
 | `library`    | lvmthin   | 3.7T  | Backs `/mnt/library` ext4 (mounted as `/dev/mapper/library-library`) |
 
-`/mnt/library` holds the shared media + data pool: `anime`, `audiobooks`, `books`, `comics`, `documents`, `downloads`, `heaper`, `homecloud`, `images`, `marimo`, `movies`, `music`, `notes`, `podcasts`, `repos`, `roms`, `sophia`, `syncthing`. Bind-mounted into every container that needs it. Permissions standard: [media GID 10000](../infrastructure/media-permissions.md).
+`/mnt/library` holds the shared media + data pool: `anime`, `audiobooks`, `books`, `comics`, `documents`, `downloads`, `heaper`, `homecloud`, `images`, `marimo`, `movies`, `music`, `notes`, `podcasts`, `repos`, `roms`, `sophia`. Bind-mounted into every container that needs it. Permissions standard: [media GID 10000](../infrastructure/media-permissions.md).
 
 ## Tenants
 
@@ -27,7 +27,7 @@ Single-node Proxmox VE running 1 VM and 13 LXC containers. The whole homelab.
 - [108 — `haos-16.3`](../vms/108-haos.md) — Home Assistant OS, 4 GiB / 32 GiB
 
 ### LXC containers
-See [containers/index](../containers/index.md). 13 active.
+See [containers/index](../containers/index.md). 13 active (109 syncthing destroyed 2026-05-14).
 
 ## Boot-time tuning (load-bearing)
 
@@ -99,6 +99,9 @@ OpenSSH on `0.0.0.0:22`. Netbird's built-in SSH server is on `100.122.38.109:220
 
 ## Changelog
 
+### 2026-05-14 — LXC 109 (syncthing) decommissioned
+User destroyed the syncthing LXC (had been stopped since 2026-04-21, never re-enabled). `pct destroy 109 --purge` cleaned `vm-109-disk-0` on `local-lvm` and the `/etc/pve/lxc/109.conf` entry. Data subtree `/mnt/library/syncthing` was already empty and retained as an empty dir. No DNS, Caddy, NFS-export, or claudio-monitor references to clean up. Entry moved to the "recently destroyed" table in [containers/index](../containers/index.md#recently-destroyed-kept-for-archaeology); references stripped from [README](../README.md), [media-permissions](../infrastructure/media-permissions.md), [vms/100-zimaos](../vms/100-zimaos.md), and [containers/102-nfs-export](../containers/102-nfs-export.md).
+
 ### 2026-05-14 — network performance baseline captured
 First explicit speed snapshot: WAN ↓113.5 / ↑19.9 Mbit (24.6 ms), `eno1` 1 Gb full-duplex negotiated, intra-host `vmbr0` ~34.7 Gbit/s host↔LXC and ~34.8 Gbit/s LXC↔LXC (single TCP stream, zero retransmits). `iperf3` + `speedtest-cli` installed on host. Noted `eno1` `rx_errors` at 1.62 M (~1.7 % of 96 M RX packets in 14 d uptime) plus 10.9 k `align_errors` — flagged for follow-up; expect to recheck the trend in ~1 week, suspect patch cable / switch port first if still climbing. See new "Network performance baseline" section above.