Esa Kataja
dfbd74b0d2
The queue card now shows an estimated time to clear: current job remaining + sum(pending source durations) / current speed. Durations come from a path+mtime-keyed cache that probes each file once in the background (ffprobe format=duration, header-only), so the 1s poll never re-probes; entries are pruned to the live queue. No speed (idle/held) -> no estimate; files still being probed mark it partial (shown as '~Xh+'). Closes #9