Remove the single-night "Last night" hypnogram from the sleep overview: its per-stage breakdown (time + %) duplicated the phase-distribution stacked bar directly below it. The /api/sleep/night route stays (the dashboard reads it); only the redundant surface is gone. Promote the chronotype to the prominent bottom block of the view. Split it out of the rhythm section (now the sleep-debt headline alone) into its own section: a large band label with the natural sleep-midpoint clock beneath it and an expandable disclosure for social jetlag + MSFsc. It reads the same ["sleep-rhythm"] cache, so it adds no round-trip, and keeps the calm "still learning your rhythm — N of M nights" state. Fix the sleep-quality assessment slot. It disabled the status fetch whenever the AI narrative was absent, so the card could not read hasProvider and fell back to its no-provider default — surfacing the "connect an AI provider" CTA even for accounts that have a provider connected, stacked under the grounded note. The card now stays enabled and reports the truthful state: no provider shows its clean AI-settings CTA alone; a connected provider with no text yet shows the grounded note; warm or preparing AI text wins. Exactly one block fills the slot.
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,app-settings-provider.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__/.