Pulse health dashboard

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Pulse is local-first: every metric is computed on-device from the analytics core (src/analytics/*) — recovery (WHOOP-style CDF), strain (Banister TRIMP), HRV (RMSSD / SDNN / Poincaré / Baevsky), energy (Keytel + Mifflin / Katch), VO₂max (Uth) and training load (CTL / ATL / TSB · ACWR · Foster).

Sleep staging from wrist HR / HRV / actigraphy is an approximation, not a clinical PSG measure. Fitness age and VO₂max are population estimates for tracking, not diagnosis.