fix(seed): netbird-vps opts out of host monitoring (unreachable from lab; services cover it)

seeds/inventory.yaml

@@ -87,6 +87,10 @@ entities:
       mesh: {netbird: {ip: 100.122.165.149, fqdn: netbird-ionos.netbird.selfhosted}}
       ssh: {user: root}
       note: netbird mgmt+signal+relay+dashboard + coturn; sshd locked to hubris pubkey
+      monitoring: none           # host unreachable from the lab (no ICMP, port 22
+                                 # times out even via hubris); liveness is covered
+                                 # by its services — authentik/matrix http checks
+                                 # and the matrix cert-expiry dial it on :443
   - slug: "ws:mac-mini"
     type: workstation
     name: mac-mini