Maurice
2a4b71b3d9
A lock flight chained into one group of more than 30 parts broke the checklist's contract and made every decision about it fail; an entry now names its nearest part and the first others, a portage lists at most 30 obstacles and a checklist at most 100 own entries. Reading along a line takes in the parts of a lock the corridor cut off, so its data basis no longer depends on how the route runs. A line or an area stands at the middle of its extent, so adding a node leaves it in place, and an earlier decision is judged by where the obstacle was, not by the route point of its passage. The cache keeps its readings without their lines, for one data version at a time, and the data version is read without the region boundaries.
@trek/shared
Single source of truth for TREK's API contracts, expressed as Zod schemas and consumed by both the server (request validation + inferred DTO types) and the client (typed requests/responses).
This package is part of the incremental NestJS + React 19 migration (see the "Brownfield Rewrite" board). It is intentionally dormant until modules start importing it — adding it changes nothing for users.
Rules
- One folder per domain:
src/<domain>/<domain>.schema.ts(+.spec.ts). - Domain-agnostic building blocks live in
src/common/. - A route is only considered migrated once its contract lives here.
- Schemas are the source of truth; server DTOs and client types are inferred from them
(
z.infer<typeof schema>), never hand-duplicated.
Consumption (dev)
Both apps resolve @trek/shared to this package's TypeScript source:
- Server (
tsx): viapathsinserver/tsconfig.json. - Client (
vite): viaresolve.aliasinclient/vite.config.ts(+pathsfor the type-checker).
Production packaging (Docker / workspace wiring) is introduced in card F2, when the server first depends on this package at runtime. Until then prod builds are untouched.
Not yet here
The canonical error envelope is finalised in card F5 (it must match TREK's current Express error responses byte-for-byte), so it is deliberately not invented in F1.