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 post-deploy CI for v1.4.39.2 surfaced eight e2e failures across
chromium-desktop and chromium-mobile (chart-overlay-controls,
dashboard, charts-mobile, measurement-flow) that all routed through
two narrow regressions and one durable test-fixture gap.
### Fixed
- Dashboard slim/thick merge no longer blanks the tile strip when the
slim slice resolves with an empty summaries record. The v1.4.39.2
inline `slim?.summaries ?? thick?.summaries` short-circuited on
JavaScript's truthy-empty-object even when thick carried the full
payload. The merge moved to a pure `mergeSlimAndThickAnalytics`
helper that uses object emptiness as the discriminator: populated
slim still wins on overlapping fields (progressive-paint contract
preserved), empty slim falls through to thick, both empty leaves
the dashboard's data-floor gates to render the appropriate empty
state. Eight new behaviour-level unit tests cover the edge cases.
- `MeasurementList` non-grouped rows now preserve decimal precision
on both the desktop table and the mobile card grid. The v1.4.37 W7c
collapsed-list view passed every value through `fmt.integer`, which
kept the per-day step / activity aggregates correct but silently
truncated single weight / body-fat / temperature readings — 78.4 kg
rendered as "78 kg". Grouped rows (cumulative HK type day
aggregates) stay on `fmt.integer` because their readings are
integer-only; non-grouped rows now use `fmt.number` which honours
up to three fraction digits without forcing a minimum.
### Changed
- Playwright route mocks for `/api/analytics` migrate from the
literal `**/api/analytics` string glob to the regex form
`/\/api\/analytics(\?|$)/` across every authenticated spec. The
string glob does not match the sliced URL form
`/api/analytics?slice=summaries` the v1.4.39.2 dashboard split
fires alongside the thick request, so the slim request fell
through to the real route on the seeded test user that returns
empty summaries. Ten specs migrate: dashboard,
chart-overlay-controls, measurement-flow, charts-mobile, a11y,
v1427-responsive-sheet, v1427-coach-launch,
v1427-measurements-add-param, v1427-insights-empty-state,
onboarding-tour-passthrough. The regex form is the durable
alignment with the v1.4.37 W-CI lesson that already swept
`onboarding-flicker.spec.ts` and `mobile-viewport.spec.ts`.
### Notes
- No schema migration. Runtime + test-fixture-only changes.
- `pnpm test --run` green at 4662 / 4663 (1 long-standing skip).
- Full Playwright suite green at 116 passing / 36 skipped / 152 total
on both `chromium-desktop` and `chromium-mobile` profiles, against
the production Next.js build. Closes every failure from CI run
26213226723.
Marc-André Bombeck