Expand terminal filesystem, add mainframe hint cron, redirect PHP logs

- Game1 terminal: flesh out the virtual filesystem with a realistic
  spread of Linux directories/files (~70 dirs, ~140 files) so it no
  longer reads as an obviously small puzzle set, without touching any
  win-condition or rapport files.
- Add app:hints:check command + a php-cron container (BusyBox crond)
  that nudges players who haven't contacted every teammate 5 minutes
  into a session, via a new 'hint' Mercure message type.
- Log the cron command's output to var/log/cron/cron.log and rotate
  it (25MB / 90 days) via logrotate, run daily from the same crontab.
- Redirect PHP's error_log and Symfony's prod app/deprecation logs
  from stderr-only into var/log/php/*.log (kept alongside stderr),
  with the same rotation policy.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

docker/restart.sh

@@ -12,7 +12,7 @@ echo "Stopping and removing containers..."
 docker network rm escapepage_network || true
 docker network rm $(docker network ls -q --filter name=escapepage) || true
 docker network prune -f || true
-docker rm -f escapepage-db escapepage-php escapepage-nginx escapepage-mercure escapepage-mailer escapepage-php-worker || true
+docker rm -f escapepage-db escapepage-php escapepage-nginx escapepage-mercure escapepage-mailer escapepage-php-worker escapepage-php-cron || true
 docker system prune -f || true
 
 echo "Clearing Docker build cache..."
@@ -21,7 +21,7 @@ docker builder prune -af
 echo "Setting permissions for var/volumes/db and var directories..."
 sudo chown -R 1000:1000 "$ROOT_DIR/var/volumes/db" || true
 sudo chmod -R 777 "$ROOT_DIR/var/volumes/db" || true
-sudo mkdir -p "$ROOT_DIR/var/cache" "$ROOT_DIR/var/log" "$ROOT_DIR/var/sessions"
+sudo mkdir -p "$ROOT_DIR/var/cache" "$ROOT_DIR/var/log/cron" "$ROOT_DIR/var/log/php" "$ROOT_DIR/var/sessions"
 sudo chown -R 1000:1000 "$ROOT_DIR/var" || true
 sudo chmod -R 777 "$ROOT_DIR/var" || true