Three properties, each with a mutation-verified guard: The chip and the line run on DIFFERENT clocks and must keep doing so. The chip expires after three hours; the line stands for the rest of the local day. Collapsing them onto one clock reads like a simplification and silently deletes the day's read at lunchtime. Degradation is the headline. For every reason a line can fail to exist — no provider, no consent, an exhausted budget, a dead provider, an unusable output — the row stays line-less, the reservation is reconciled, and the chip and the provisional-to-final flip still work. The degraded digest is built through the real composer rather than a hand-shaped fixture, so the assertions cannot agree with themselves. The server pass carries no wall-clock time. The hero paints on the SSR pass because it is the LCP element, so a locale-formatted time inside it would differ from the browser's — React #418. The tests render through the server snapshot, which is exactly the pass that must stay clock-free. The seeded end-to-end spec lands a sleep batch through the real ingest route, writes the arrival marker, and asserts the chip and the phase flip in place on a refetch trigger the digest hook already declares — no reload, no new cadence.
src/components/
React components. The UI primitives are shadcn/ui (new-york style, zinc base) over Radix + Tailwind 4 + Lucide; everything above the primitives is feature-grouped by surface. Components are server components unless they need a hook, state, or browser API, in which case they open with "use client". Charts use Recharts 3 — replacing the chart library requires explicit approval.
Primitives and shell
ui/— shadcn/ui primitives (button, dialog, sheet, table, …). Generated by the shadcn CLI; keep edits minimal and on-style.layout/— the app shell: sidebar, topbar, bottom nav.providers.tsx,version-poller.tsx— top-level context providers and the self-healing stale-shell poller.i18n/— translation context + locale switcher.
Feature groups
insights/— insight status, assessment cards, Coach surface, advisor cards (the largest group).medications/— medication cards, the schedule wizard, intake timeline, detail history.settings/— the section components behind each settings page.measurements/,mood/,dashboard/— entry forms, lists, dashboard tiles.charts/— Recharts wrappers.monitoring/— Umami / GlitchTip client bootstrap.gamification/,targets/,comparison/,doctor-report/,clinician/,onboarding/,admin/— the remaining per-surface groups.
Conventions
Kebab-case filenames; React component exports stay PascalCase regardless. (A handful of PascalCase-filename outliers under medications/ + onboarding/ are pre-existing drift, noted in ../../CLAUDE.md.) Every t() call needs a matching key in messages/en.json — guarded by i18n-call-site-coverage.test.ts. Data reads go through TanStack Query with keys from @/lib/query-keys and unwrap (await res.json()).data. Tests live in __tests__/.