docker: send all supervised process output to the container log

Only Caddy's output reached docker logs. php-fpm and the queue worker
wrote to supervisord child logfiles under /tmp, so application errors and
failed queue jobs were invisible to 'docker logs' and any log collector.
Route stdout/stderr of every supervised program to fd 1.

Also on the queue worker:
- stopwaitsecs=3600 so in-flight jobs get to finish on shutdown instead
  of being SIGKILLed after supervisord's 10 second default (per the
  Laravel deployment docs; pair with a compose stop_grace_period if jobs
  routinely run long)
- --max-time=3600 so the long-lived worker recycles itself hourly as a
  memory-leak guard; supervisord restarts it automatically

docker/supervisord.conf

@@ -25,11 +25,20 @@ password=dummy
 command=/usr/local/sbin/php-fpm -F
 autostart=true
 autorestart=true
+stdout_logfile=/dev/fd/1
+stdout_logfile_maxbytes=0
+redirect_stderr=true
 
 [program:queue-worker]
-command=/usr/local/bin/php /var/www/html/artisan queue:work --tries=3
+command=/usr/local/bin/php /var/www/html/artisan queue:work --tries=3 --max-time=3600
 autostart=true
 autorestart=true
+; give running jobs time to finish on shutdown instead of killing them
+; after supervisord's 10 second default
+stopwaitsecs=3600
+stdout_logfile=/dev/fd/1
+stdout_logfile_maxbytes=0
+redirect_stderr=true
 
 [program:caddy]
 command=caddy run --config /etc/caddy/Caddyfile --adapter caddyfile
@@ -44,4 +53,6 @@ redirect_stderr=true
 command=supercronic -overlapping /etc/crontabs/crontab
 autostart=true
 autorestart=true
+stdout_logfile=/dev/fd/1
+stdout_logfile_maxbytes=0
 redirect_stderr=true