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Marc-André Bombeck
db8ac95342
`data-latest-rate` is a production attribute whose only reader was the browser suite, so a change to the rate's shape would have surfaced three minutes and a whole server away from the gate that should own it. One unit test now renders the chart over a loaded window and asserts the root carries the last day's rate. Two comments were wrong. The card's take / skip buttons do not collapse to icons at narrow widths — both render their label unconditionally beside the icon — so only the true half of the reason for addressing them by `data-slot` survives: the labels are translated copy. And the Enter press in the wizard's times-of-day helper is not decoration. The field's overlay input holds what is being typed and hands it to the form only on Enter or on blur (`src/components/ui/time-field.tsx:175-184`), while the add button is disabled on an empty draft — so a fill followed straight by a click waits out the actionability timeout on a button that never enables. Proven by removing it: the flow died at exactly that click. The line stays, with the reason written beside it.
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/; outbound HTTP goes through src/lib/safe-fetch.ts.