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.

sms-wa-bridge/playbook.yml

@@ -1,39 +1,5 @@
 ---
-# sms-wa-bridge as a rootless Podman Quadlet unit on emily, behind the shared
-# Caddy unit (caddy/playbook.yml).
-#
-# The app is SMS webhook -> routing rules -> WhatsApp, with no LLM in the path:
-# an Android automation (MacroDroid) POSTs each SMS to https://bridge.tanshu.dev/sms
-# with an X-Auth header, rules.json decides who gets it, and whatsapp-web.js
-# sends it from a linked WhatsApp account. It was deployed on monoco as a plain
-# `docker run` container built from the Dockerfile now vendored at
-# files/build/ — see readme.md.
-#
-# Connects as the container user and runs everything as that user: the Quadlet
-# units belong to it, so the connection's PAM session is what makes
-# `systemctl --user` work without any environment juggling.
-#
-# gather_facts is required: podman_user and the home directory come from the
-# user_id / user_dir facts.
-#
-# The rootless-Podman prerequisites (installing podman, enabling lingering, the
-# low-port sysctl, creating the Quadlet directory) are deliberately NOT applied
-# here. They are the shared task file at caddy/roles/podman/tasks/main.yaml, and
-# a host that has already run caddy/playbook.yml has them:
-#
-#   - name: Rootless Podman prerequisites
-#     ansible.builtin.include_tasks: "{{ playbook_dir }}/../caddy/roles/podman/tasks/main.yaml"
-#
-# The variables this play needs are duplicated at the top of vars/default.yml, so
-# it stands on its own. (Applying the commented include above would also need
-# podman_unprivileged_port_start, which lives in caddy/vars/default.yml.)
-#
-# The one prerequisite it *does* need beyond Caddy's is buildah, and only on the
-# build path: `podman` Recommends it on Ubuntu, so caddy/roles/podman has already
-# installed it. Nothing needs it when the image is loaded from monoco, which is
-# the recommended route in readme.md.
-#
-# Run with: ansible-playbook -u tanshu sms-wa-bridge/playbook.yml
+# Requires caddy to have run first.
 - name: Deploy sms-wa-bridge as a rootless Podman Quadlet
   hosts: emily
   gather_facts: true
@@ -41,19 +7,10 @@
     - vars/default.yml
 
   pre_tasks:
-    # This must happen before the app unit is started, not after: the generated
-    # unit references {{ network_name }}.network, and Quadlet fails *unit
-    # generation* (so `systemctl --user start` reports "unit not found") when a
-    # referenced .network file does not exist yet. The same include writes the
-    # Caddy-side drop-in that attaches Caddy to this network.
-    #
-    # network_name is a play var, so the include can see it directly.
+    # Quadlet needs the network unit before it generates the app unit.
     - name: Register the bridge's network with Caddy
       ansible.builtin.include_tasks: "{{ playbook_dir }}/../caddy/roles/register/tasks/main.yaml"
 
   roles:
-    # The app: the data tree and the two bind-mounted files, the environment
-    # file, the image (loaded or built), the Quadlet unit, start + verify.
     - sms-wa-bridge
-    # Appends this site's block to the shared Caddyfile and reloads Caddy.
     - caddy