Files
HealthLog/src
Marc-André Bombeck 0a524c542b Write down what an upgrade does to an account that already exists
The promise is that nobody's number moves the day they upgrade, and the
way it holds is easy to lose: there is no backfill and no migration
step, because a null column reads as version zero, version zero counts
every pillar, and every pillar narrowed to what the account's modules
record is exactly the set the module switches were producing before.
The inheritance is the resolver's behaviour, so the next person to touch
the resolver needs to know they are holding it.

Also records what the first save sets in motion, once each: the delta
suppressed while the comparison window still straddles the change, the
next stored day marked as a break so the line is drawn in two segments,
and the notice raised under a key carrying the recipe version.
2026-07-31 16:57:42 +02:00
..
2026-07-31 11:48:22 +02:00
2026-07-31 11:48:22 +02:00

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 renamed middleware). 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 in apiHandler. See app/README.md.
  • lib/ — the server/runtime toolkit: apiHandler, auth, crypto, rollups, AI, notifications, pg-boss jobs, integrations, rate limiting. See lib/README.md.
  • components/ — React components (shadcn/ui new-york, kebab-case files). See components/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 by prisma 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/; outbound HTTP goes through src/lib/safe-fetch.ts.