Follow-up to the review of #4057.
- Rename apps/logos_delivery_node/compose -> apps/logos_delivery_node/docker
(review request); the only path reference was in the folder's own README.
- run_certbot.sh: pass the configured EMAIL to certbot instead of the
hardcoded admin@$DOMAIN, and forward EMAIL to the certbot container so
setting it in .env takes effect. Empty still falls back to admin@$DOMAIN.
- set_storage_retention.sh: `grep -c` always prints a count, so the old
sudo test was always true and sudo was used whenever ./postgresql existed.
Test readability of the data directory directly instead.
- chkhealth.sh: drop the stray `GET` argument, which curl treated as an
extra (failing) URL.
- docker-compose.yml: put certbot behind the `wss` profile so it no longer
publishes host port 80 on deployments that do not use WebSocket-Secure,
and drop the node's meaningless `depends_on: certbot` (run_node.sh polls
for the certificate on disk anyway).
