One-shot prettier pass so the new format:check gate starts from a clean
baseline. Formatting only — no behaviour change. Generator-owned and
vendored artifacts stay untouched via .prettierignore.
The reference-range classifier assumed bands[0] was always the
normal/target band, so any metric whose first band is abnormal was
placed wrong: a healthy BMI 22 read as just outside the reference and
an underweight BMI 17 read as inside; pulse pressure had the same flaw
(Narrow is its first band). The same classifier drives the in-app
four-state explainer, so both surfaces were affected.
Mark the population-normal band explicitly with a `normal: true` flag
on every metric, add `normalBandIndex`, and place values by distance
from the marked band rather than from index 0. `headlineBandText` now
renders the marked band, so BMI grounds against 18.5-24.9 kg/m2.
Exclude daily steps from the Coach grounding: it is fed the intra-day
mean of the step rows, which averages a multi-row day down and can
misplace it below the 8,000 floor. Grounding it on a per-day sum is the
correct fix and is left as a follow-up; until then drop the line rather
than ship a wrong placement.
Extend the classifier and grounding tests for BMI 17/22/27, a pulse
pressure case, the normal-band-not-at-index-0 contract, and that steps
is not grounded.
Introduce src/lib/reference-ranges.ts: a structured, citation-backed
per-metric reference-range backbone (band + source body + year) with a
deterministic four-state placement helper, read by the UI surfaces. Each
band traces to the medical-citations registry, which gains the supporting
sources (ACC/AHA 2017 and ESC 2024 blood pressure, StatPearls pulse
pressure and mean arterial pressure, ESC/ESH 2018 pulse-wave velocity,
FDA 2024 and StatPearls pulse oximetry, J Gen Intern Med 2019 temperature,
RCP NEWS2 and American Lung Association respiratory rate, visceral-fat
imaging literature, AHA 2024 resting heart rate, ESC/NASPE 1996 HRV,
Wilcox 2000, ACOG 651, Phillips 2017 and CDC 2024 sleep).
Blood pressure keeps ESH 2023 as the labelled default; ACC/AHA 2017 and
ESC 2024 appear only as displayed placement context. Enrich the metric
explainers with concise cited reference bands and a general-guidance
tooltip on every metric page: a darker-skin pulse-oximeter over-read
caveat, device-proxy honesty for readiness/recovery/strain/stress, an
HRV day-to-day-noise note, and a resting-heart-rate clarification. Fill
the empty registry normal ranges, reconcile the steps green floor to
8,000, and tighten the body-temperature band below the fever line. Add
free pulse-pressure and mean-arterial-pressure context on the blood-
pressure detail page, plus cycle-physiology and sleep-hygiene copy across
all six locales. Cycle thresholds carry a verification marker pending an
ACOG source check.
Marc-André Bombeck