A chart shows the shape and hides the numbers. An appointment needs the numbers, and so does anyone moving readings into a spreadsheet. The table reads the same expression the chart hands Recharts, after the range slice, the week/month bucketing and the display scale, and it formats through the chart's own value and date formatters. Nothing is re-derived, so a cell and the tooltip cannot print two numbers for one point. Collapsed by default, with the point count in the trigger so the size reads while it is closed; the region scrolls in its own box rather than growing the page, and the table primitive already scrolls a wide row set sideways. The caption names the grain, because a weekly mean labelled as a daily reading would be a lie, and the grain now has one source shared with the bucketing. Derived overlays get no column: a moving average is drawn from the points, not measured. An empty window renders no table at all, since the chart's own empty state already says there is nothing there. Opt-in per mount. The metric sub-pages take it; the dashboard tiles do not, because a table under every tile buries the dashboard it summarises. Refs #636
src/app/
The Next.js App Router tree: the page surfaces a logged-in user sees and the REST API under api/. Server components are the default; "use client" is added only where a hook, state, or browser API needs it. Routing is file-based — a page.tsx is a page, a route.ts is an API endpoint.
API routes (api/)
Every endpoint wraps its handler in apiHandler (@/lib/api-handler), parses any body with Zod safeParse, narrows userId from the session or Bearer token (never from the body), and returns the { data, error, meta? } envelope. requireAdmin() is cookie-only, so api/admin/ is unreachable by Bearer token. Notable groups:
auth/— login, register, password, passkey (WebAuthn), refresh, Codex device-OAuth.measurements/,mood-entries/,medications/,sleep/— the core health-data CRUD + batch/bulk ingest.ingest/— external Bearer-token ingest surfaces.insights/,analytics/,dashboard/— AI insights, the Coach SSE stream, trend summaries, the first-paint dashboard snapshot.withings/,whoop/,fitbit/,integrations/,sync/— OAuth connect/sync/webhook surfaces and the offline delta feed.fhir/,share-links/,doctor-report/,export/,import/— clinician-facing FHIR R4 read API, shareable records, report + data export.notifications/,devices/,send/,telegram/— channel registration, device tokens, dispatch, webhook intake.admin/— operator panel APIs (cookie-only).health/,version/,meta/,internal/— health check, build-version probe, runtime metadata, worker-internal routes.
Page surfaces
measurements/, medications/, mood/, insights/, achievements/, notifications/, settings/, onboarding/, admin/, plus the public about/, privacy/, bugreport/, the share-record route c/, and the root dashboard (page.tsx). Shared shell + chrome lives in layout.tsx; error.tsx / global-error.tsx / not-found.tsx / loading.tsx cover the framework boundaries. layout.tsx holds the one nonce-bound dangerouslySetInnerHTML (theme bootstrap).
Conventions
See ../../CLAUDE.md. The request-flow walk in .planning/codebase/arch.md annotates each layer with file:line citations. Related dirs: handlers compose ../lib/; pages render ../components/.