ansible: describe what runs on the servers

The roles had drifted far from production: Forgejo was pinned at 12
while 15.0.11 runs, its config lacked the mailer, packages and the real
database path, and several services existed only on the hosts. Running
a role would have rolled production back. Take the servers as the truth
and make the repository match them.

site.yaml now holds the desired state of both hosts:

 - base: unattended upgrades, fail2ban, Docker daemon config and the
   weekly image prune, as found on the hosts. New: a 500M journal cap,
   and the Docker systemd override is kept absent. That override once
   opened dockerd on tcp/2375 without authentication.
 - traefik: templates as deployed, version in a variable (v3.7.18).
   The Coraza WAF files are removed; no router ever used them.
 - forgejo: 15.0.11, app.ini generated from the live file with the
   secrets taken from the vault.
 - crawler_alert, sillytavern, minecraft, minecraft_fossils: added
   from the hosts.

Forgejo's canonical name becomes git.asxp.io; git.czsk.it stays as an
alias on the same router.

docker_service restarts a stack when its config changes, no longer
forces ownership on existing data directories, and hides template
diffs because they carry secrets. Containers listed in
service_graceful_stop are saved and stopped with a long timeout before
compose recreates them: Docker's 10 s default is too short for a
Minecraft world. Both game servers get stop_grace_period for the same
reason.

Removed: the full-deployment and runner playbooks with their prompts,
the Forgejo backup and restore roles for the old bare-metal host, and
inventory entries for services that were never deployed. SSH hardening
stays a manual playbook, since a mistake there locks everyone out.

New secrets (SMTP, RCON, CurseForge key) went into the vault.

Assisted-by: Claude:fable-5-2

ansible/inventory/hosts.yaml

@@ -1,6 +1,6 @@
 ---
-# Ansible inventory for asxpio infrastructure
-# Update IP addresses after running terraform apply
+# Default inventory: run from a workstation over WireGuard, as root.
+# CI uses inventory/ci.yaml instead (VPC addresses, user deploy).
 
 all:
   vars:
@@ -8,59 +8,13 @@ all:
     ansible_python_interpreter: /usr/bin/python3
 
   children:
-    # Production asxpio infrastructure (excludes legacy servers)
     asxpio:
-      vars:
-        # Common variables for all asxpio production servers
-        timezone: UTC
-        locale: en_US.UTF-8
-
       children:
         ops_servers:
           hosts:
             asxpio-ops:
-              # Stage 1: Use public IP for WireGuard deployment
-              # ansible_host: 135.181.27.77  # Uncomment for Stage 1 if needed
-              # Stage 2: Use WireGuard IP (uncomment below after 01-wireguard-setup.yaml)
-              ansible_host: "{{ asxpio_ops_wireguard_ip }}"  # 10.20.0.10 via WireGuard
-              public_ip: 135.181.27.77
-              vpc_ip: "{{ asxpio_ops_vpc_ip }}"
-              wireguard_ip: "{{ asxpio_ops_wireguard_ip }}"
-              server_role: ops
-              server_type: cx22
-              services:
-                - traefik
-                - forgejo
-                - grafana
-                - prometheus
-                - loki
-                - static_sites
-
+              ansible_host: "{{ wireguard_ip }}"
         services_servers:
           hosts:
             asxpio-services:
-              # Stage 1: Use public IP for WireGuard deployment
-              # ansible_host: 46.62.228.216  # Uncomment for Stage 1 if needed
-              # Stage 2: Use WireGuard IP (uncomment below after 01-wireguard-setup.yaml)
-              ansible_host: "{{ asxpio_services_wireguard_ip }}"  # 10.20.0.20 via WireGuard
-              public_ip: 46.62.228.216
-              vpc_ip: "{{ asxpio_services_vpc_ip }}"
-              wireguard_ip: "{{ asxpio_services_wireguard_ip }}"
-              server_role: services
-              server_type: cx43
-              services:
-                - forgejo_runner
-                - immich
-                - minecraft
-                - valheim
-                - factorio
-                - prosody
-                - coturn
-
-    # Legacy servers (standalone, not part of asxpio group)
-    old_servers:
-      hosts:
-        asxpio-old:
-          ansible_host: asxp.io
-          server_role: legacy
-          ansible_user: asxpi
+              ansible_host: "{{ wireguard_ip }}"