Runs the same 4-step pipeline as daily_sunrise_video.sh but uses the
most recent ~2 minutes of captured frames instead of the sunrise window,
grabs live RTSP audio for the audio mix step, and accepts an arbitrary
output path — so it can be run at any time of day to verify the full
pipeline (speed-adjust, audio mix, vertical time overlay) without
waiting for tomorrow's sunrise.
https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
