## What & why S-10b: the self-service **diploma upload** is now real. After submitting, the citizen picks a PDF and uploads it; the portal base64-encodes it client-side → BFF → domain → **ACL**, which stores it in the ZGW **Documenten (DRC) API** as an `enkelvoudiginformatieobject` and relates it to the zaak, then the `WachtOpDocumenten` wait completes and the case advances to beoordeling. Per §8.1 only the ACL talks to ZGW. Closes #103 Mechanism in **ADR-0018** (proposal #107). Builds on S-10a (#102). The zaak-close-on-expiry item is carved to **#106 (S-10c)**. ## Definition of Done - [x] Linked Gitea issue (above). - [x] Failing test committed before the implementation (red→green per layer). - [x] Conventional Commits referencing the issue (`refs #103`). - [ ] CI green — all Gitea Actions jobs (pending on this PR). - [x] `docker compose up` health unaffected (ACL boots on a placeholder informatieobjecttype URL; the real one is injected by verify-domain). - [x] Docs updated (ADR-0018, demo-script, BACKLOG + S-10c). - [x] ADR added (`docs/architecture/adr-0018-diploma-upload-via-acl-documenten.md`). - [x] Demo note in `docs/demo-script.md`. ## Notes for reviewers - **ACL** (`OpenZaakGateway.StoreDocumentAsync` + `AclService.StoreDiplomaAsync` + `POST /documenten`) reuses the existing gateway patterns (ZGW Bearer, buffered non-chunked body, **no CRS** — Documenten isn't geo). Unit-tested via the stub handler; an **integration test** stores a real document against live OpenZaak (verify-acl). - **Transport:** base64 JSON on every hop (portal encodes client-side) — I deviated from proposal #107's multipart to keep one contract shape and avoid `IFormFile`/antiforgery/multipart-client plumbing; fine at diploma size (ADR-0018 §Alternatives). - **Infra:** `seed_catalogus.py` seeds + publishes a "Diploma" `informatieobjecttype` and relates it to the zaaktype (while both concept); `verify-domain` injects its URL into the ACL. No new ZGW scopes (seed applicatie has `heeft_alle_autorisaties`). - **e2e:** uploads a real PDF (`setInputFiles`) after the openbaar INGEDIEND row confirms the zaak is open (so storage doesn't race the OpenZaak worker). - **Scope boundary:** the ZGW zaak is not set to a cancellation status on 30-day expiry — that's #106 (S-10c). 🤖 Generated with [Claude Code](https://claude.com/claude-code) Reviewed-on: #108