Files
HealthLog/src
Marc-André Bombeck 1fbd3b628b Carry the Coach's memory through backup and restore
The transcript came back in the previous change; what the Coach keeps
BETWEEN threads did not. A restored account had every word of every
conversation and a Coach that has to be told its own history again — the
register said as much for all three: "a restore makes the account
re-tell its history", "keeps the talk and loses the commitment", "a
restored account silently stops sending them".

Tombstones ride only in a disaster-recovery file. All three soft-delete,
and a deleted fact is hidden from injection while kept for audit — a
distinction only the owning instance can act on. A portable file
carrying them would hand a person rows their own app refuses to show
them, and a restore that resurrected one would put a fact back into the
Coach's mouth that the person had deliberately taken out of it.

Neither reference here is a foreign key. sourceConversationId, on all
three, and relatedPlanId on the reminder are bare id columns, so nothing
in the database refuses a value pointing at nothing. That makes them
more dangerous than a real key rather than less: a dangling reference
costs no error, it just quietly stops meaning anything while the row
goes on looking complete. The restore resolves both against what it
actually wrote, nulls what it cannot resolve, and reports the count.

Nulling rather than dropping is the point. A live reminder must not be
lost because the plan it mentions was tombstoned out of a portable file.
The reminder is still the person's and it still fires; what it loses is
a pointer that was already going nowhere.

Order follows from that: threads, then plans, then reminders. Running
the memory before the transcript would cut every fact loose from the
conversation it came out of and still report success.

Verified by breaking it: making the conversation lookup always return
null fails the round trip on the fact's own source field.
2026-08-22 00:41:26 +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.