Full E2E in CI against a dockerized backend (deferred)

[nora-weisser]

Goal

Run the full E2E API suite in CI against a dockerized backend. Deferred / future milestone — explicitly out of scope for the initial lint+typecheck PR gate.

Scope

• Spin up wcc-backend via Docker with seeded role users.
• Provide CI secrets for role credentials / API key.
• Run npm run test:api (and optionally test:admin) on a schedule or label-gated workflow.

Acceptance criteria

• Backend runs in CI with seeded data
• E2E suite runs green in CI (scheduled or label-gated)

Note

This is intentionally separate from the fast PR gate (lint/format/typecheck). Tracked for a future milestone.

Part of the open-source readiness epic.