Add two cycle reminders through the existing notification cascade and the honest self-hosting privacy framing for reproductive-health data. Notifications: - New event types CYCLE_PERIOD_SOON (fires ~2 days before the predicted next-period start, from the cached prediction) and CYCLE_PERIOD_CONFIRM (a gentle "did your period start?" on/after the predicted start while no period is logged, within a short grace window). Both default OFF and are gated again on cycleTrackingEnabled — opt in twice for a sensitive surface. - A 15-minute pg-boss cron mirrors the mood-reminder worker: it scans users with cycle tracking enabled + predictionEnabled, computes who is in-window from the cached forecast, and dispatches one push per event per local day. Idempotency anchors on the push_attempts ledger (no new table). The queue is declared, registered in allQueues, scheduled, and wired to a boss.work handler, with a source-grep guard so it cannot ship unregistered. - Honours notificationPrefs.cycle.clientManaged (skip the server push when the device owns local reminders, with a suppressed annotation, mirroring the medication path) and CycleProfile.discreetNotifications (generic "HealthLog reminder" body so no cycle event is named on the lock screen). - Every attempt is recorded in push_attempts via the unchanged dispatcher. Privacy / disclaimer: - docs/self-hosting/reproductive-health-data.md — the "no cloud vendor to subpoena" framing with the honest residual-threat caveat (your own host, provider, backups, and devices remain part of the surface), citing the 2021 FTC settlement and 2025 verdict as public record only. - docs/security/cycle-data-threat-model.md — a compact "protects against / does not protect against" note, plus README pointers. - CyclePredictionDisclaimer component (reusing the GLP-1 estimate-disclaimer pattern) for every fertility/prediction surface: descriptive, not a contraceptive method, not medical advice, never a safe-to-have-unprotected -sex claim. 6-locale copy under cycle.disclaimer. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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/.