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Marc-André BombeckandClaude Opus 4.8
5f485ca780
Add the `/api/cycle/*` capture, calendar, history, and settings routes
plus the offline-sync delta extension for the v1.15 cycle-tracking
feature, all against the locked iOS contract.
- Enable flag: add nullable `cycleTrackingEnabled` to CycleProfile
(migration 0132). A null toggle derives from gender (FEMALE → on).
`isCycleEnabled()` is the single gate resolver; every `/api/cycle/*`
route 403s `{ errorCode: "cycle.disabled" }` when off. The resolved
flag surfaces additively on GET /api/auth/me.
- Routes (apiHandler + Zod + envelope + gate + annotate + auditLog):
POST/PATCH/DELETE day-logs (single), POST day-logs/bulk (idempotent,
capped 500, rate-limited 60/min, per-entry inserted/updated/duplicate/
skipped), POST period boundary, GET calendar (runs the deterministic
engine, debounced stale-while-revalidate cache, goal-gated fertile
window), GET cycles (history + median/MAD stats), GET profile,
DELETE cycles, PATCH /api/auth/me/cycle-prefs (deep-merge).
- Day-log note encrypts at rest (notesEncrypted); intent fields stay
queryable plaintext. Upsert keys on (userId, source, externalId) when
externalId present, else (userId, date).
- Offline sync: extend GET /api/sync/changes + the cursor with the
`cycleDays` + `cycles` domains (CURSOR_VERSION → 2). cycleDays
tombstones key on externalId else id; cycles on id.
- OpenAPI: register every route + DTO; regenerate the committed spec.
- i18n: cycle prediction disclaimer across all six locales.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
src/
Application source. HealthLog is a Next.js 16 App Router project (output: "standalone", React 19, TypeScript strict). The path alias @/* resolves to this directory. Everything a request touches lives under here; the layout below follows the request flow rather than alphabetical order.
Request flow
client → src/proxy.ts → src/app/<route>/route.ts → src/lib/api-handler.ts → handler body → src/lib/api-response.ts → client
proxy.ts— the HTTP edge (Next.js 16's renamedmiddleware). Public-path allowlist, demo-mode mutation block, server-side onboarding redirect, worker-only refusal,x-request-id+ CSP nonce generation, every security header.app/— App Router pages (RSC by default) and API routes. Every API route wraps its handler inapiHandler. Seeapp/README.md.lib/— the server/runtime toolkit:apiHandler, auth, crypto, rollups, AI, notifications, pg-boss jobs, integrations, rate limiting. Seelib/README.md.components/— React components (shadcn/ui new-york, kebab-case files). Seecomponents/README.md.
Other directories
hooks/— shared React hooks (use-prefix, kebab-case).types/— shared TypeScript declarations.generated/prisma/— the generated Prisma client (do not edit; regenerated byprisma generate). Imported as@/generated/prisma.instrumentation.ts— Next.js startup hook; boots the pg-boss worker registry and boot-time backfill queues.__tests__/— cross-cutting unit tests; most tests live in__tests__/folders next to the code they cover.
Conventions
See ../CLAUDE.md for the full set. The load-bearing ones: RSC by default ("use client" only when a hook/state/browser API needs it); every API route wraps apiHandler and parses its body with Zod safeParse; userId is always narrowed from session or Bearer, never accepted as a body field; TanStack Query keys come only from src/lib/query-keys.ts; outbound HTTP goes through src/lib/safe-fetch.ts.