Backend samples /proc/{pid}/stat every 2s to calculate CPU usage of
each ffmpeg process and exposes ffmpeg_pid + ffmpeg_cpu_pct in stats().
Dashboard shows a cyan ffmpeg badge with live CPU% per stream row,
plus a new StatCard with total ffmpeg CPU across all active streams.
Full-stack IPTV management system with Xtream Codes API compatibility,
multi-account provider fan-out, Jellyfin local library integration,
real-time dashboard, EPG support, and A/V-sync-safe stream recovery.
joaquin