fix: move authelia, forgejo, bitwarden to helsinki-a host_vars

These services run on helsinki-a, not london-b. Verified via docker ps
on both hosts. deploy.yml would have managed them on the wrong host.

Fixes PESO-73

ansible/inventory/host_vars/helsinki-a.yml

@@ -4,3 +4,8 @@ host_description: "Reverse proxy (Caddy), main traffic gateway"
 host_location: "Hetzner Cloud"
 
 caddy_config_src: "{{ playbook_dir }}/services/caddy/Caddyfile"
+
+docker_services:
+  - authelia
+  - forgejo
+  - bitwarden

ansible/inventory/host_vars/london-b.yml

@@ -8,9 +8,6 @@ docker_services:
   - jellyseerr
   - navidrome
   - slskd
-  - authelia
-  - forgejo
-  - bitwarden
   - miniflux
   - smartctl-exporter
   - plex-exporter