fix: less opinionated pds operator hostname

templates/Caddyfile.j2

@@ -16,7 +16,7 @@
   reverse_proxy http://localhost:3000
 }
 {% if pds_operator_enabled is defined and pds_operator_enabled | bool %}
-operator.{{ pds_hostname }} {
+{{ pds_operator_hostname }} {
   log {
     output stdout
     format json

templates/pds-operator.env.j2

@@ -5,4 +5,4 @@ RELAY_HOSTNAME=bsky.network
 SESSION_SECRET={{ pds_operator_session_secret }}
 PORT=8787
 APPVIEW_URL=https://bsky.app
-DASHBOARD_URL=https://operator.{{ pds_hostname }}
+DASHBOARD_URL=https://{{ pds_operator_hostname }}