Cut the comment bloat from the Podman playbooks

Comment blocks now stay within three lines and explain only the non-obvious. Long histories, include examples, and commented-out code are gone. No task, key, or value changed; the only data change is comment text inside the generated unit files.

nextcloud/roles/caddy/handlers/main.yaml

@@ -1,27 +1,14 @@
 ---
-# Caddy is its own playbook (caddy/playbook.yml) and a rootless Quadlet unit
-# there. These handlers run as the connection user, which is what makes
-# `systemctl --user` and `podman exec` work here.
-
-# Notified by this role when the Caddyfile changes. A reload keeps existing
-# connections; a restart would briefly drop every hosted site.
-#
-# Note the config path: /etc/caddy/Caddyfile is the mount inside the container,
-# not {{ caddyfile_path }}, which is the host side of it.
+# A reload keeps existing connections. A restart would briefly drop every hosted site.
+# The config path is inside the container, not caddyfile_path on the host.
 - name: Reload Caddy configuration
   ansible.builtin.command: >-
     podman exec {{ caddy_name }} caddy reload --config /etc/caddy/Caddyfile
   changed_when: true
   listen: "Reload Caddy"
 
-# Notified by caddy/roles/register when this service's network unit, or the
-# drop-in that attaches Caddy to it, is written. Quadlet has no live equivalent
-# of `docker network connect`, so the container has to be recreated — a brief
-# restart of every hosted site, not just this one. See caddy/readme.md,
-# "Trade-off worth knowing".
-#
-# Defined after the reload above so that when both are notified the cheap
-# config reload happens first.
+# Quadlet has no live equivalent of network connect, so Caddy is recreated and every hosted site restarts.
+# Defined after the reload so the cheap reload runs first.
 - name: Restart Caddy
   ansible.builtin.systemd_service:
     name: "{{ caddy_name }}.service"

nextcloud/roles/caddy/tasks/main.yaml

@@ -1,17 +1,4 @@
 ---
-# Append this site's block to the shared Caddyfile.
-#
-# The Caddyfile is a bind mount into the Caddy container, so Caddy sees the
-# change as soon as the file is written; the handler only asks Caddy to re-read
-# it. That is a reload, not a restart, so the other hosted sites are untouched.
-#
-# blockinfile is idempotent on its own via the marker, so there is no need to
-# slurp the file and compare first — which also matters because slurp *fails*
-# when the Caddyfile does not exist yet, on a host where the Caddy playbook has
-# not run.
-#
-# The marker is stable, so re-runs replace this site's block in place rather than
-# appending a second copy of it.
 - name: "Add the {{ host }} site block to the Caddyfile"
   ansible.builtin.blockinfile:
     path: "{{ caddyfile_path }}"