Fetch the Open-Meteo air-quality feed (CAMS, domains=auto) with the weather: 17 hourly variables folded into local days by fixed rules (means and maxima only with 18 of 24 hours, ozone as the highest 8-hour running mean, UV only with the midday hours), a value the feed did not cover stored as null, never as zero. Requests are cut into 90-day chunks, newest first, and chunks before mid 2022 ask for the eight pollutant and index variables only. An air-quality failure never costs the weather row; the day stays unfetched and the nightly gap fill (up to 90 days per account, newest first) asks for it again. Every Open-Meteo request asks an instance-wide budget kept in Postgres first (500 a minute, 4000 an hour, 8000 a day, weighted by the hosted pricing rule). A refused request is not sent and the run ends as done with budget_blocked. OPENMETEO_AIR_QUALITY_URL and ENVIRONMENT_AIR_QUALITY_DISABLED are honoured; the account switch lives on PATCH /api/environment/preferences. The home, each dated location period and each stored day keep their coarse location sealed as one value under healthlog/environment-location/v1. The writers write the sealed value only, the readers open it and fall back to the readable columns for rows the free-text encryption backfill has not reached, and the backfill now seals all three and clears the readable columns. The backup carries the location readable in a portable file and sealed in a disaster-recovery file; a restore seals either under the receiving key. Three correlation channels join the environment family (PM2.5, the ozone 8-hour high, the day's highest pollen count), read through the averaged same-day window and left empty while air quality is off. The Coach and MCP gain get_environment: module-gated, clamped to the lookback limit, no coordinate or place name anywhere, with provenance and the attribution lines. The settings section gets the switch, the coverage and the newest day's values; the dashboard shows a quiet chip on a day with high pollen, a warm night or very poor air. Copernicus and Open-Meteo are credited next to the values.
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__/.