feat: add VNC streaming support

deploy/docker/supervisord.conf

@@ -20,9 +20,53 @@ user=appuser                    ; Run gunicorn as our non-root user
 autorestart=true
 priority=20
 environment=PYTHONUNBUFFERED=1  ; Ensure Python output is sent straight to logs
+environment=DISPLAY=:99
 stdout_logfile=/dev/stdout      ; Redirect gunicorn stdout to container stdout
 stdout_logfile_maxbytes=0
 stderr_logfile=/dev/stderr      ; Redirect gunicorn stderr to container stderr
 stderr_logfile_maxbytes=0
 
+[program:xvfb]
+command=/usr/bin/Xvfb :99 -screen 0 1280x720x24
+user=appuser
+autorestart=true
+priority=5
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/stderr
+stderr_logfile_maxbytes=0
+
+[program:fluxbox]
+command=/usr/bin/fluxbox
+user=appuser
+autorestart=true
+priority=6
+environment=DISPLAY=:99
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/stderr
+stderr_logfile_maxbytes=0
+
+[program:x11vnc]
+command=/usr/bin/x11vnc -display :99 -nopw -forever -shared -rfbport 5900 -quiet
+user=appuser
+autorestart=true
+priority=7
+environment=DISPLAY=:99
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/stderr
+stderr_logfile_maxbytes=0
+
+[program:websockify]
+command=/usr/bin/websockify 6080 localhost:5900 --web /opt/novnc
+user=appuser
+autorestart=true
+priority=8
+environment=DISPLAY=:99
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/stderr
+stderr_logfile_maxbytes=0
+
 # Optional: Add filebeat or other logging agents here if needed