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/group_vars/ops_servers/forgejo.yaml

@@ -1,25 +1,25 @@
 ---
-# Forgejo Git server configuration
+forgejo_version: "15.0.11"
 
-# Forgejo version and domain
-forgejo_version: "12"
+# The instance answers on every name below. forgejo_domain is the
+# canonical one (ROOT_URL, clone URLs, mail links); the rest are aliases.
 forgejo_domain: git.asxp.io
+forgejo_alias_domains:
+  - git.czsk.it
 
-# Forgejo installation path
 forgejo_base_path: "{{ services_base_path }}/forgejo"
-
-# Forgejo ports
 forgejo_http_port: 3000
 
-# Forgejo secrets (stored in encrypted vault)
+# app.ini is owned by the container's git user
+forgejo_uid: 1000
+forgejo_gid: 1000
+
+traefik_network: traefik
+
 forgejo_secret_key: "{{ vault_forgejo_secret_key }}"
 forgejo_internal_token: "{{ vault_forgejo_internal_token }}"
 forgejo_jwt_secret: "{{ vault_forgejo_jwt_secret }}"
 forgejo_lfs_jwt_secret: "{{ vault_forgejo_lfs_jwt_secret }}"
-
-# Backup configuration
-backup_dest_dir: /opt/forgejo-backup
-backup_old_server: asxpio-old
-
-# Docker network for Traefik integration
-traefik_network: traefik
+forgejo_server_lfs_jwt_secret: "{{ vault_forgejo_server_lfs_jwt_secret }}"
+forgejo_smtp_user: "{{ vault_forgejo_smtp_user }}"
+forgejo_smtp_password: "{{ vault_forgejo_smtp_password }}"