USR369 direction 09/01/26, mid-workout: wants a distance field on cardio entries (warmup/main/cooldown individually), with a unit choice -- miles, kilometers, etc. His message cut off after 'for that number one I left' -- unclear if that fragment refers to a specific value he wanted logged or was just an interrupted thought; he confirmed this is a NEW feature request, not a value to log right now. Not yet scoped which surface(s) this applies to (Android/HTML/both) -- ask before building. Relates to item #24 (Cardio Session major restructure, still open) -- distance-per-unit may belong inside that same rebuild rather than being bolted onto the current cardio structure separately.