Phase 6b of the SHOC-alignment plan — client side of the optimistic-concurrency
wire contract shipped in 6a.
shared/api-contracts (additive):
- rowVersion: string on ProposalListItem, ProposalDetail, and LineItem
- proposalVersion?: string on UpdateProposalRequest and
BulkUpdateLineItemsRequest; new ProposalVersionRequest
- ConcurrencyConflict<T> { message, currentState } — the SHOC ADR 0004
409 envelope (guarded path; the unguarded fallback carries no state)
- matching zod schemas, all kept under the satisfies z.ZodType<T> coupling
web:
- lib/api/errors.ts: ConflictError carrying the server's reloaded
currentState; client.ts interceptor throws it on 409 (WEB-M2 401
handling untouched)
- guarded mutations read the token from the cached proposal detail at
mutate time; the save flow chains rotated tokens (PUT response token
into the bulk replace) and ends with a detail refetch so
approve-after-save never sends a stale version
- 409 recovery in the admin use-cases: write currentState into the
detail cache, invalidateProposalViews() (stale-queue invariant holds
on the failure path too), and toast the conflict instead of the
generic failure message
- e2e smoke mock payloads carry rowVersion; vitest coverage for the
interceptor ConflictError paths, token threading/rotation, and 409
cache recovery
Verified: shared typecheck, web tsc/vitest (69)/build/prettier/Playwright
smoke, mobile tsc (create-only, no changes needed).
Converts the web CI job from ci-typescript-cdk.yaml (typecheck only) to
ci-typescript-frontend.yaml: format:check, build (tsc -b included),
vitest, and a Playwright chromium smoke. Folds the standalone Web Tests
job into it (aggregator needs updated). Pure CI — no AWS secrets.
The smoke (e2e/smoke.spec.ts) drives dev-login → dashboard shell →
proposal list, plus the unauthenticated bounce, against a fully mocked
API (pathname-anchored route interception — a '**/api/**' glob would
swallow vite's /src/lib/api/* module URLs). Config mirrors SHOC's
playwright.config.ts (port 4173, chromium, dev-server webServer).
Prettier: singleQuote + printWidth 100 to match the existing codebase
style; lint intentionally not added (no ESLint config yet — run-lint
false, out of Phase 5 scope). rollback = revert this workflow file.
