Cardio duration, now with hours and seconds

Cardio duration used to be a single "minutes" field: fine for a 20-minute run, awkward for a 90-minute ride or a 45-second sprint.

It is now three fields: Hours, Minutes, Seconds. Type into any of them and the others stay put.

Distance is smarter too. It only appears for exercises where covering ground actually makes sense: running, cycling, rowing, swimming. A plank, a skipping session, or a round on the heavy bag no longer asks you for a distance that was never going to mean anything.

Everything you already logged is unaffected; old entries convert automatically.