inventory: remove retired LXC 124 (authentik), update dnsmasq→dns service ref

inventory.yaml

@@ -51,9 +51,9 @@ services:
   authentik:
     url: https://auth.hubris.network
     backend: authentik
-  dnsmasq:
-    backend: authentik
-    note: split-horizon DNS, /etc/dnsmasq.d/hubris-split.conf
+    dns:
+    backend: dns
+    note: Technitium DNS, split-horizon zone
   jellyfin:
     url: https://media.hubris.network
     backend: jellyfin
@@ -273,16 +273,6 @@ hosts:
     - /mnt/library
     age_pubkey: ''
   # 123 (claudio-bot) — destroyed 2026-06-04, replaced by Hermes Agent
-  authentik:
-    kind: lxc
-    pve_id: 124
-    host: hubris
-    os: linux
-    role: idp
-    lan_ip: 192.168.8.180
-    public_host: auth.hubris.network
-    notes:
-    - 'Also hosts split-horizon dnsmasq: /etc/dnsmasq.d/hubris-split.conf'
   plato:
     kind: lxc
     pve_id: 126