Add Docker support with Dockerfile, docker-compose, and entrypoint script; update .gitignore and add .dockerignore

docker/supervisord.conf

@@ -0,0 +1,56 @@
+[supervisord]
+nodaemon=true
+user=root
+logfile=/dev/null
+logfile_maxbytes=0
+pidfile=/run/supervisord.pid
+
+[unix_http_server]
+file=/run/supervisor.sock
+
+[supervisorctl]
+serverurl=unix:///run/supervisor.sock
+
+[rpcinterface:supervisor]
+supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
+
+; ── Nginx ─────────────────────────────────────────────────────────────────
+[program:nginx]
+command=nginx -g "daemon off;"
+autostart=true
+autorestart=true
+priority=10
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/stderr
+stderr_logfile_maxbytes=0
+
+; ── PHP-FPM ───────────────────────────────────────────────────────────────
+[program:php-fpm]
+command=php-fpm --nodaemonize
+autostart=true
+autorestart=true
+priority=5
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/stderr
+stderr_logfile_maxbytes=0
+
+; ── Laravel Queue Worker ──────────────────────────────────────────────────
+[program:queue]
+command=php /var/www/html/artisan queue:work \
+    --sleep=3 \
+    --tries=3 \
+    --max-time=3600 \
+    --queue=default
+directory=/var/www/html
+user=www-data
+autostart=true
+autorestart=true
+priority=20
+numprocs=1
+startsecs=5
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/stderr
+stderr_logfile_maxbytes=0