iOS-operator-blocking hotfix for REG-11 — Home dashboard tile renders
neither chart nor latest value for BP / Puls / Körperfett when the
most recent reading is older than 7 days. Root cause was in
`/api/dashboard/summary` SQL gates; `latestIn7d` + `sparkBuckets` both
required `measured_at >= sevenDaysAgo`, which returned empty for
sparse accounts, leaving the iOS tile with `latestValue: null` +
`sparkline: []` to render from. Detail-screen
(`/api/measurements/series?kind=…`) escaped because of its broader
window.
Server-side changes:
- `latestIn7d` → `latestEver` (drops 7-day filter; DISTINCT ON returns
latest reading EVER per type, bounded at N_metrics rows).
- `sparkBuckets` rewritten via ROW_NUMBER() OVER (PARTITION BY type
ORDER BY bucket_start DESC) so the trailing N daily buckets per
type render regardless of age, bounded at SPARK_DAYS × N_metrics.
- BP + Pulse metrics.push gated on `latest || allTimeCount > 0` like
BodyFat already is — accounts with zero readings ever no longer get
empty placeholder tiles.
- 4 new regression tests in summary/__tests__/route.test.ts cover
sparse accounts, zero-data accounts, within-7d guards.
Other develop work bundled in this release:
- W4-QoL — copy nits.
- W5-WORKOUTS — user source priority threaded through write-time
picker + batch route.
- W7-WITHINGS-RELIABILITY — response classifier + sync hardening.
- W8-OPS — ops phase docs.
- B11 — NEXT_PUBLIC_APP_VERSION build-arg routing so /api/version
cannot drift from CI tag.
- env-check workflow — manifest / example lockstep enforcement.
Resolves PR #194 (squash-merge produced via local -X theirs strategy
because GitHub's UI couldn't auto-resolve develop's post-v1.4.42
contiguous work against the v1.4.42 squash on main; resulting tree is
byte-identical to develop's HEAD).
