ssh: fix LXC name parsing in deploy-keys.sh (Lock column edge case)

hosts/mac-mini.yaml

@@ -5,6 +5,7 @@ name: mac-mini
 kind: workstation
 os: macos
 role: dev
+lan_ip: 192.168.8.174
 mesh:
   netbird:
     fqdn: mac-mini-234-17.netbird.selfhosted
@@ -18,5 +19,5 @@ ssh:
 notes:
 - Only macOS in the fleet. Bootstrap uses launchd.
 age_pubkey: age1z62ff2ak9zj5ctcvaxwyyhedwjvlwgm2dkn9nk3wrwk8fkavcpmsqwc2vs
-mcp_endpoint: https://mcp.hubris.network/sse
+mcp_endpoint: https://mcp.hubris.network
 secrets_issuance_endpoint: https://secrets.hubris.network/issue