Today is shown as in_progress instead of being placed against whole
days, and a running period is compared over its completed days only:
the total through yesterday against the usual rate times the days
completed. The period total and goal progress still count today. The
comparison gains completedDays and completedValue.
The week label and each day's accessible name went through the
zone-aware formatters, which show a noon-UTC day key as the next day
east of UTC+12. Read them in UTC like every other stated date.
A week or month of steps, active minutes, workouts by sport and training
load, each day placed against the person's own spread over the 84 days
before the period and each period against the median of the twelve weeks
or six months before it. Optional weekly and monthly goals live on the
account (activity_goals_json), travel with the backup and are cleared by
a data wipe. The calendar sits on the workouts page; the steps page links
to it. Computed server-side without AI.