chore(docker/php): 优化supervisord.conf 当websocket文件不存在，不启动

docker/php/supervisord.conf

@@ -47,11 +47,11 @@ startsecs=3
 stopwaitsecs=10
 
 [program:websocket-server]
-command=php ./ws_server.php
+command=/bin/bash -c "if [ -f /var/www/html/ws_server.php ]; then php ./ws_server.php; else echo 'ws_server.php not found, skipping websocket server'; fi"
 workdir=/var/www/html
 autostart=true
-autorestart=true
-startretries=3
+autorestart=false
+startretries=0
 stdout_logfile=/var/log/supervisor/websocket-server.log
 stdout_logfile_maxbytes=10MB
 stdout_logfile_backups=10