Add an on-demand intraday layer to the pulse insight: 10-minute mean
heart rate for the viewed day, folded from raw samples via the read-swap
pattern (never persisted as 10-minute rollups for all history). Draw the
personal resting baseline and softly shade any sustained
elevated-at-rest stretch.
The tension signal is not raw heart rate — it is heart rate held above
the personal resting baseline while movement is low (the elevated-at-rest
window), so a workout or a walk never reads as tension. Detection is
deliberately conservative: baseline maturity, per-bucket sample density,
a mandatory step-based low-movement gate, and a minimum sustained
duration must all hold before anything is reported. Silence over
speculation.
Surface the same signal as a calm, non-diagnostic tension_window item in
the daily digest — at most once per day, honest-absent otherwise, gated
on the insights module and yielding the rail to time-sensitive actions.
Cautious copy across all six locales; framed as "possible tension", never
a clinical stress verdict.
Marc-André Bombeck
a33527da57