scrypted: trim stream logging volume

A chatty camera keeps a viewport streaming for long stretches, and the old
logging emitted ~5 cold-start stamps + a 10s window line per ~10s per stream.
Cut it down:
- keep a single cold-start stamp (first ffmpeg frame); drop spawned / first
  stdout byte / first socket.write.
- gate the 10s window line on noteworthy windows only (socket-not-ready drops,
  a buffer-cap flush this window, firmware shedding >=2fps, or painted <20fps);
  healthy 24fps windows print nothing — the per-wake lines already show liveness.
- log "registered" only when the pushed config actually changes, not on every
  5-minute reregister cycle. lastRegisterSig cleared on stop() for fresh-load
  parity.
No behavior change beyond logging.

0 files changed, 0 insertions, 0 deletions