✨ Fix proftpd name, add TLS config and cert reload ✨

Rename proftp to proftpd, install proftpd with mod_tls, serve /var/ftp
with a single config file, and reload proftpd when the cert changes.

- .env.scripts: rename proftp to proftpd; SERVICE_PORT 21, EXPOSE_PORTS 49152-65534; add proftpd packages
- Dockerfile: rename proftp to proftpd; port ARGs; PACK_LIST with proftpd, mod_tls, mod_readme, utils, openssl; labels from gen-dockerfile update
- README.md: ports 21 and passive range; mounts for /var/ftp and /etc/letsencrypt
- rootfs/.gitea/workflows/docker.yaml: rename proftp to proftpd
- rootfs/tmp/etc/proftpd/proftpd.conf: single config, anonymous root /var/ftp, TLS 1.2/1.3 with certs at /etc/letsencrypt/live/domain, logs in /data/logs/proftpd
- rootfs/usr/local/etc/docker/init.d/99-proftpd.sh: regenerate from current start-service template; add self-signed cert fallback, cert watcher that sends HUP on change, log dir chmod
- rootfs/usr/local/etc/docker/functions/entrypoint.sh: use if blocks for debug echoes so set -e no longer exits the container when DEBUGGER is off
- TODO.AI.md: log upstream template follow-ups (exit code 20, function-final [ ] && tails)
- README.md: updated (ports and mounts for FTP and Let's Encrypt)

rootfs/usr/local/etc/docker/functions/entrypoint.sh

@@ -645,7 +645,7 @@ __symlink() {
   [ "$from" = "$to" ] && return 0
   __rm "$from"
   [ -d "${from%/*}" ] || mkdir -p "${from%/*}" 2>/dev/null
-  ln -sf "$to" "$from" && [ "$DEBUGGER" = "on" ] && echo "Created symlink: $from -> $to"
+  ln -sf "$to" "$from" && if [ "$DEBUGGER" = "on" ]; then echo "Created symlink: $from -> $to"; fi
 }
 # - - - - - - - - - - - - - - - - - - - - - - - - -
 __file_copy() {
@@ -1180,7 +1180,7 @@ EOF
       if [ ! -e "/usr/sbin/sendmail" ] && command -v msmtp &>/dev/null; then
         __symlink "/usr/sbin/sendmail" "$(command -v msmtp)"
       fi
-      [ "$DEBUGGER" = "on" ] && echo "Done setting up msmtp"
+      if [ "$DEBUGGER" = "on" ]; then echo "Done setting up msmtp"; fi
     fi
 
   ################# sSMTP relay setup
@@ -1221,7 +1221,7 @@ EOF
         __symlink "/etc/ssmtp/revaliases" "/config/ssmtp/revaliases"
         __initialize_replace_variables "/etc/ssmtp/revaliases"
       fi
-      [ "$DEBUGGER" = "on" ] && echo "Done setting up ssmtp"
+      if [ "$DEBUGGER" = "on" ]; then echo "Done setting up ssmtp"; fi
     fi
 
     ################# postfix relay setup
@@ -1275,7 +1275,7 @@ EOF
       if [ ! -f "/run/init.d/postfix.pid" ]; then
         __exec_service postfix start
       fi
-      [ "$DEBUGGER" = "on" ] && echo "Done setting up postfix"
+      if [ "$DEBUGGER" = "on" ]; then echo "Done setting up postfix"; fi
     fi
   fi
   [ -f "/root/dead.letter" ] && __rm "/root/dead.letter"