certbot cannot issue for internal hostnames (*.nas.local), which made
nginx-enabled services with internal names fail on deploy.
Add a <service>_nginx_letsencrypt flag (default false) and computed
<service>_nginx_ssl_certificate/_key paths: when off the vhost uses the
shared self-signed cert (nginx_default_ssl_cert), when on it uses the
Let's Encrypt lineage. Gate the certbot include on the flag and apply the
pattern to all service roles (deluge, fdroid, gitea, grafana, immich,
metabase, ntfy, prowlarr, radarr, seerr, static_web, uptime_kuma).
gitea.yaml, immich.yaml, and metabase.yaml embed database passwords in
env vars; per repo policy, rendered files containing secrets must not
be world-readable.
'Writing manifest' is printed by podman pull on stderr (not stdout), so
changed_when never matched, the Restart Immich handler never fired, and
pods kept running the old image after upgrades. Matching on stderr would
be wrong too: podman prints that line even when the image is unchanged.
Compare the local image ID before/after pull instead, and notify the
restart handler only when the tag resolves to a new image.