Upload the ZIP the Android Health Connect app writes and import its `health_connect_export.db` in the background, the same way an Apple Health export is imported: streamed to disk with a SHA-256, capped at 1 GiB, one import per account, a job row of kind `health_connect` that the shared reconcile cron and staging sweep now look up on its own queue. The worker extracts the database (4 GiB ceiling, zip-bomb checks) and opens it read-only with `immutable=1`, `trusted_schema=OFF` and `query_only`. A view in place of a record table refuses the file, columns are found by name, and schema versions below 9 are refused. Records are read in batches of 500 and aggregated in SQLite: steps, energy and distance as one total per day from the app the person's Health Connect priority list ranks first, heart rate per minute for 90 days and as hourly means before that, sleep stages with the unknown stage counted only in sessions without real stages, workouts, cycle days, water and micronutrients. Apps whose integration the account has connected are left out, and a reading already stored under another source is skipped. Rows carry source HEALTH_CONNECT, `hc:<uuid>` or the `stats:` ids, so a second import of the same export writes nothing. Both staged files are removed on every way out; the job result holds counts per type and per app only. Settings gain a Health Connect card with the export steps, progress and the outcome, in all seven languages, and the import is documented in docs/integrations/health-connect.md.
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__/.