The W2 commit shipped with `as never` casts on the request + params
arguments, which let the runtime test pass but failed strict tsc
because `apiHandler<() => Promise<Response>>` narrows the wrapper's
signature down to its inner handler's. Cast through `unknown` so the
wrapper-side `request.url` read works and tsc is satisfied.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Apple Health stores sleep as one Measurement row per stage per night,
so the existing single-value SLEEP_DURATION summary would treat each
stage as its own datapoint and grossly understate the per-night total.
The route now sums per Berlin day before summarising — one summary
datapoint per night, value equal to total minutes asleep.
A new optional `sleepStages` block surfaces the per-stage breakdown
over the trailing 30 days when stage-tagged rows exist (and `null`
otherwise so the existing UI keeps painting the totals-only path).
The block reports total minutes, the night count covered, and the
per-stage minute sums so the upcoming insights surface can render
"averaged across N nights" captions truthfully.
Two integration tests cover both shapes — a four-stage night
aggregating to 880 minutes with a populated stages map, and a
manual-source no-stage row keeping `sleepStages` at null.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>