fix(verify): attach stdin (-i) so the zaak-status read-back runs (refs #106)

The cancellation reaches OpenZaak correctly (Geannuleerd status_created), but
the verify read-back ran 'docker run python:3-slim python -' without -i, so the
heredoc never reached the container's stdin and the script was empty — the check
always saw an empty status. Add -i so the read actually queries OpenZaak.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.gitea/workflows/ci.yaml

@@ -9,12 +9,6 @@ on:
 permissions:
   contents: read
 
-# Supersede stale runs: a new push to the same branch/PR cancels the previous run, so the runner's
-# concurrency slots aren't spent on commits nobody is waiting for (refs #127).
-concurrency:
-  group: ci-${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
 # Self-hosted runner — see docs/runbooks/ci.md for the runner setup.
 # `uses:` are absolute, tag-pinned URLs (CLAUDE.md §8.7 / §15).
 
@@ -135,20 +129,12 @@ jobs:
           path: services/bff/StrykerOutput/**/reports/mutation-report.html
           if-no-files-found: warn
 
-  # One stage for every check that needs the live stack. Booting OpenZaak once (instead
-  # of once per job) is the cheapest layout (issue #58). No setup-dotnet: the ACL test runs
-  # in a built image and everything reaches services by container IP. Needs Docker + egress
+  # One stage for every check that needs the live stack. On the single self-hosted
+  # runner jobs run sequentially, so booting OpenZaak once (instead of once per job)
+  # is the cheapest layout (issue #58). No setup-dotnet: the ACL test runs in a built
+  # image and everything reaches services by container IP. Needs Docker + egress
   # (base images, nuget, selectielijst.openzaak.nl).
-  #
-  # `needs: [mutation]` is NOT a data dependency — it serialises the two memory-heavy jobs so
-  # they never co-schedule now the runner has capacity >1. A concurrent Stryker run + full-stack
-  # bring-up + Playwright browser on one host is what OOMs the e2e (commit d5e5fa2, #126). The
-  # light .NET/frontend jobs have no `needs`, so they still parallelise up to runner capacity.
-  # `if: !cancelled()` keeps verify-stack running even when the mutation ratchet fails (so we don't
-  # lose its signal) while still honouring run cancellation from the concurrency group above.
   verify-stack:
-    needs: [mutation]
-    if: ${{ !cancelled() }}
     runs-on: ubuntu-latest
     steps:
       - uses: https://github.com/actions/checkout@v4
@@ -156,8 +142,6 @@ jobs:
       # reaches green health" smoke (it replaces the old compose-smoke job).
       - name: Bring up the full stack & wait for health
         run: make verify-up
-      - name: Observability backplane (Grafana + Tempo + Prometheus datasources)
-        run: OBS_TIMEOUT=180 make verify-observability
       - name: ACL ↔ OpenZaak integration tests
         run: make verify-acl
       - name: OpenZaak → NRC notification delivery
@@ -168,16 +152,12 @@ jobs:
         run: make verify-domain
       - name: BFF → Keycloak + domain + projection
         run: make verify-bff
-      - name: Distributed traces reach Tempo (one connected trace across services)
-        run: TRACING_TIMEOUT=120 make verify-tracing
-      - name: Golden-signal metrics scraped by Prometheus (/metrics on every service)
-        run: METRICS_TIMEOUT=120 make verify-metrics
       - name: Self-service e2e (Playwright, login → submit → success)
         run: make verify-e2e
       # Log dump must precede teardown (which removes the containers).
       - name: Dump container logs on failure
         if: failure()
-        run: docker compose -f infra/docker-compose.yml logs --no-color --tail=100 oz-init openzaak nrc-init nrc-web nrc-celery nrc-beat flowable-db flowable-rest flowable-init keycloak acl bff domain projection-db event-subscriber projection-api self-service openbaar behandel tempo prometheus grafana 2>&1 || true
+        run: docker compose -f infra/docker-compose.yml logs --no-color --tail=100 oz-init openzaak nrc-init nrc-web nrc-celery nrc-beat flowable-db flowable-rest flowable-init keycloak acl bff domain projection-db event-subscriber projection-api self-service openbaar behandel 2>&1 || true
       - name: Tear down
         if: always()
         run: make down

.gitignore

@@ -57,4 +57,3 @@ vitest.config.*.timestamp*
 tests/e2e/node_modules/
 tests/e2e/test-results/
 tests/e2e/playwright-report/
-__pycache__/

BACKLOG.md

@@ -239,12 +239,6 @@ Split (issue #11 closed) into two independently-demoable slices per §13 — the
 
 **Outcome:** Boundary timer on beoordeling user task — 14 days. On timeout, reassigns to a teamlead role.
 
-### S-26 · Self-service — resume an existing registration after refresh — #111
-
-**Outcome:** a signed-in zorgprofessional who reloads the self-service portal (or returns later) gets back to their in-flight registration and its actions (Documenten aanleveren, Trek aanvraag in), instead of a blank submit form with the reference lost. Today all post-submit state lives in in-memory signals, the reference is not in the URL, and there is no self-service read endpoint — so a reload strands the registration. Adds an owner-scoped (DigiD bsn) `GET /self-service/registrations` on the BFF/domain and a load-on-init/route restore in the portal.
-
-**Acceptance:** BDD — resume after refresh shows the existing registration; lookup is owner-scoped (never another citizen's); a user with no in-flight registration still sees the submit form. Playwright e2e reloads mid-flow and asserts the actions remain reachable.
-
 ---
 
 ## Iteration 3 — Maintenance portal and observability *(milestone: `Iteration 3 — Beheer & Observability`)*
@@ -253,19 +247,13 @@ Split (issue #11 closed) into two independently-demoable slices per §13 — the
 
 **Outcome:** Beheer portal lets an admin view ZTC catalogi (read-only first), and manage the ACL's default-fill configuration via a CRUD UI. MFA on the medewerker realm enforced.
 
-### S-16 · OpenTelemetry traces + Grafana dashboard *(split — #17 closed)*
+### S-16 · OpenTelemetry traces + Grafana dashboard
 
 **Outcome:** Traces span portal → BFF → Domain → ACL → OpenZaak and portal → BFF → Domain → Flowable. Grafana dashboards pre-built for golden signals.
 
-Split into independently deployable sub-slices (CLAUDE.md §13):
+### S-17 · Quartz.NET scheduler — herregistratie reminder sweep
 
-- **S-16a** (#122) · Observability backplane — Grafana Tempo + Prometheus + Grafana in compose, datasources auto-provisioned (ADR-0023). No collector; config baked into built images.
-- **S-16b** (#123) · Distributed traces across the five .NET services (OTLP → Tempo; traceparent propagates via the typed HttpClients). Depends on S-16a. ✅
-- **S-16c** (#124) · Prometheus metrics + golden-signal Grafana dashboards. Depends on S-16a.
-
-### S-17 · Quartz.NET scheduler — herregistratie reminder sweep ✅
-
-**Outcome:** Daily Quartz.NET cron job finds inscriptions within 90 days of their herregistratie deadline and reminds each (flag on the aggregate + log). No outbound notification and no domain event in v1 — the reminder is the persisted flag, surfaced on the read model (ADR-0022, #120). Quartz fires time-triggered sweeps; the existing pumps stay as queue-drainers.
+**Outcome:** Nightly job that finds entries within 90 days of expiry and emits a domain event. (No outbound notification in v1 — logged.)
 
 ---
 

Makefile

@@ -43,7 +43,7 @@ export DOCKER_HOST := unix://$(PODMAN_SOCK)
 endif
 endif
 
-.PHONY: ci lint build unit mutation frontend integration verify verify-up verify-acl verify-nrc verify-projection verify-bff verify-domain verify-observability verify-tracing verify-metrics verify-notifications smoke up down local verify-local local-down changelog openzaak-up openzaak-smoke openzaak-seed openzaak-down stack-up stack-smoke stack-down keycloak-up keycloak-smoke keycloak-down flowable-up flowable-smoke flowable-down help
+.PHONY: ci lint build unit mutation frontend integration verify verify-up verify-acl verify-nrc verify-projection verify-bff verify-domain verify-notifications smoke up down local local-down changelog openzaak-up openzaak-smoke openzaak-seed openzaak-down stack-up stack-smoke stack-down keycloak-up keycloak-smoke keycloak-down flowable-up flowable-smoke flowable-down help
 
 ## ci: run the full pipeline — lint, build, unit, mutation, frontend, verify (mirrors Gitea Actions)
 ## `verify` is the live-stack stage (full stack up once → ACL + notification checks).
@@ -114,11 +114,6 @@ local:
 	docker compose -f $(LOCAL_COMPOSE) up -d --build
 	WAIT_TIMEOUT=420 bash infra/wait-healthy.sh $(WAIT_SVCS)
 
-## verify-local: acceptance check for the local stack (S-B04) — a fresh `make local` completes the
-## whole flow (zaaktype seeded + DMN deployed + NRC abonnement) with NO manual seeding.
-verify-local:
-	bash infra/run-local-flow-check.sh
-
 ## local-down: stop and remove the bind-mount stack
 local-down:
 	docker compose -f $(LOCAL_COMPOSE) down --volumes
@@ -170,21 +165,6 @@ verify-bff:
 verify-e2e:
 	bash infra/run-e2e-check.sh
 
-## verify-observability: assert the observability backplane (Grafana + provisioned Tempo &
-## Prometheus datasources) is live, against the already-running stack (S-16a).
-verify-observability:
-	bash infra/run-observability-check.sh
-
-## verify-tracing: assert one connected distributed trace spans the .NET services in Tempo
-## (S-16b), against the already-running stack.
-verify-tracing:
-	bash infra/run-tracing-check.sh
-
-## verify-metrics: assert the services expose /metrics and Prometheus scrapes the golden
-## signals (S-16c), against the already-running stack.
-verify-metrics:
-	bash infra/run-metrics-check.sh
-
 ## verify: local mirror of the CI verify-stack job — full stack up once, all checks,
 ## tear down (always). For fast single-concern local iteration use `integration`
 ## (oz-only) or `verify-notifications` (oz+nrc) instead.

apps/self-service/src/app/registration/registration-page.spec.ts

@@ -21,20 +21,16 @@ function providers(
   post = vi.fn().mockReturnValue(of({ registrationId: 'reg-9', status: 'Ingediend' })),
   withdraw = vi.fn().mockReturnValue(of(undefined)),
   provideDocuments = vi.fn().mockReturnValue(of(undefined)),
-  // Resume lookup (S-26): default to 204/empty — no in-flight registration, so the submit form shows.
-  getCurrent = vi.fn().mockReturnValue(of(undefined)),
 ) {
   return {
     post,
     withdraw,
     provideDocuments,
-    getCurrent,
     providers: [
       { provide: AuthService, useClass: FakeAuth },
       {
         provide: BffApiV1Service,
         useValue: {
-          getSelfServiceRegistrations: getCurrent,
           postSelfServiceRegistrations: post,
           postSelfServiceRegistrationsIdWithdraw: withdraw,
           postSelfServiceRegistrationsIdDocuments: provideDocuments,
@@ -60,21 +56,6 @@ describe('RegistrationPage', () => {
     expect(await screen.findByText(/ontvangen/i)).toBeTruthy();
   });
 
-  it('resumes an existing registration on load, without submitting again (S-26)', async () => {
-    const { post, providers: p } = providers(
-      undefined,
-      undefined,
-      undefined,
-      vi.fn().mockReturnValue(of({ registrationId: 'reg-77', status: 'Ingediend' })),
-    );
-    await render(RegistrationPage, { providers: p });
-
-    // The confirmation view is restored from the in-flight registration — no submit click.
-    expect(await screen.findByText(/ontvangen/i)).toBeTruthy();
-    expect(screen.getByText(/reg-77/)).toBeTruthy();
-    expect(post).not.toHaveBeenCalled();
-  });
-
   it('shows an error and keeps the submit available when the BFF call fails', async () => {
     const { post, providers: p } = providers(vi.fn().mockReturnValue(throwError(() => new Error('BFF rejected'))));
     await render(RegistrationPage, { providers: p });

apps/self-service/src/app/registration/registration-page.ts

@@ -1,5 +1,5 @@
-import { Component, inject, type OnInit, signal } from '@angular/core';
-import { BffApiV1Service, type CurrentRegistration, type SubmitAccepted } from 'api-client';
+import { Component, inject, signal } from '@angular/core';
+import { BffApiV1Service, type SubmitAccepted } from 'api-client';
 import { AuthService } from 'auth';
 import { UtrechtComponentsModule } from 'ui';
 
@@ -8,16 +8,13 @@ import { UtrechtComponentsModule } from 'ui';
  * registration. The bsn comes from the DigiD token (not a form field), so this is a confirm-and-
  * submit flow that posts to the BFF and shows the returned reference (ADR-0010; S-08c). After
  * submitting they can withdraw it — "trek aanvraag in" — keyed by that reference (S-11c).
- *
- * On load it asks the BFF for the caller's current open registration and restores the submitted view
- * if there is one, so a page refresh no longer strands an in-flight registration (S-26).
  */
 @Component({
   selector: 'app-registration-page',
   imports: [UtrechtComponentsModule],
   templateUrl: './registration-page.html',
 })
-export class RegistrationPage implements OnInit {
+export class RegistrationPage {
   private readonly auth = inject(AuthService);
   private readonly bff = inject(BffApiV1Service);
 
@@ -34,23 +31,6 @@ export class RegistrationPage implements OnInit {
   protected readonly provideDocumentsFailed = signal(false);
   protected readonly selectedFile = signal<File | undefined>(undefined);
 
-  /** Resume an existing in-flight registration after a refresh (S-26): the BFF returns the caller's
-   * current open registration, or 204 (empty body) when there is none — in which case we show the
-   * submit form as before. Failures are non-fatal for the same reason. */
-  ngOnInit(): void {
-    this.bff.getSelfServiceRegistrations().subscribe({
-      next: (current: CurrentRegistration | void) => {
-        if (current && current.registrationId) {
-          this.reference.set(current.registrationId);
-          this.submitted.set(true);
-        }
-      },
-      error: () => {
-        // No resumable registration (or the lookup failed) — fall back to the submit form.
-      },
-    });
-  }
-
   submit(): void {
     this.submitting.set(true);
     this.failed.set(false);

docs/architecture/adr-0020-local-stack-self-seeds.md

@@ -1,92 +0,0 @@
-# ADR-0020: The local stack self-seeds the zaaktype, DMN, and NRC abonnement at bring-up
-
-- **Status:** Accepted
-- **Date:** 2026-07-22
-- **Deciders:** Respellion engineering
-- **Relates to:** S-B04 (#110). Local-stack twin of the seeding the verify-* scripts do for CI
-  (`infra/run-domain-check.sh`, `infra/verify-notification-driver.py`). Superseded in part by S-27
-  (#113), which would let the ACL resolve its zaaktype by identificatie and remove the URL injection.
-
-## Context
-
-`infra/docker-compose.local.yml` is the host-browser-friendly stack (`make local`) — the one a
-developer clicks through the portals with. It had drifted behind three slices, so a fresh bring-up
-could not complete the flow:
-
-1. The ACL pointed at a placeholder zaaktype (`…/00000000-…`), so zaak creation failed with OpenZaak
-   `400` and the registratie process stuck at `OpenZaakAanmaken` (S-05).
-2. `flowable-init` deployed only `registratie.bpmn`, not `diploma-eligibility.dmn`, so completing
-   `WachtOpDocumenten` 404'd on the missing decision and never reached `Beoordelen` (S-10a/S-13).
-3. No NRC abonnement was registered, so notifications reached NRC and went nowhere — the projection
-   and the openbaar register stayed empty (S-06).
-
-The CI stack (`infra/docker-compose.yml`) does not hit this because its `verify-*` scripts seed the
-zaaktype, deploy the DMN, and register the abonnement at *test* time. The local stack has no such
-harness — a developer just runs `make local` and browses. The non-obvious wrinkle is (1): the
-zaaktype **UUID is assigned by OpenZaak at creation**, so the ACL's zaaktype URL is not knowable when
-the compose file is written and cannot be a static value.
-
-## Decision
-
-**Make the local stack self-seed at bring-up via one-shot init containers, and hand the ACL its
-server-assigned zaaktype URL through a shared-volume env file it sources on startup.**
-
-- **DMN (gap 2).** `flowable-init` now deploys `diploma-eligibility.dmn` to the DMN engine
-  (`/flowable-rest/dmn-api/dmn-repository/deployments`) as a separate deployment alongside the BPMN —
-  identical to the CI `flowable-init`. Idempotent.
-- **Zaaktype + ACL wiring (gap 1).** A `local-seed` one-shot runs the existing
-  `infra/openzaak/seed_catalogus.py` (`OZ_PUBLISH=1`) against OpenZaak and writes the resulting
-  `Acl__Defaults__ZaaktypeUrl` / `…InformatieobjecttypeUrl` / `Acl__OpenZaak__BaseUrl` into
-  `seed-env:/out/acl.env`. The ACL mounts that volume read-only and overrides its entrypoint to
-  `sh -c 'set -a; . /seed/acl.env; set +a; exec dotnet Acl.Api.dll'`, so the real values override the
-  compose placeholders before the app reads config. The ACL `depends_on: local-seed
-  (service_completed_successfully)`.
-- **Abonnement (gap 3).** A `nrc-subscribe` one-shot registers an abonnement on the `zaken` kanaal
-  pointing at the event-subscriber's `/notifications` callback (`infra/local/register-abonnement.py`).
-  It is a leaf — nothing depends on it — so it can wait for the event-subscriber without forming a
-  cycle with the ACL bootstrap.
-- **Reach OpenZaak/NRC by container IP, not service name.** Both the seed's ZTC calls and the
-  abonnement's `callbackUrl` are validated by Django's URLValidator, which rejects a single-label host
-  like `openzaak` / `event-subscriber`. The scripts resolve the target's container IP at runtime (as
-  `infra/run-domain-check.sh` does), keeping the seeded URLs valid **and** host-consistent — the ACL's
-  base URL is set to the same OpenZaak IP that owns the zaaktype URL.
-- **Acceptance.** `make verify-local` (`infra/run-local-flow-check.sh`) submits against a fresh stack
-  and asserts the zaak opens, the case reaches the werkbak after documents, and the reference appears
-  in the openbaar register — the red-to-green test for all three gaps.
-
-## Consequences
-
-**Positive**
-
-- A fresh `make local` completes the full demo (submit → werkbak → openbaar) with no manual seeding —
-  the slice's stated outcome.
-- Reuses the proven CI mechanisms (`seed_catalogus.py`, the DMN deploy, the abonnement driver) rather
-  than inventing new ones; the only genuinely new piece is the entrypoint-sourced env file.
-- No service code changes — the fix is entirely in `infra/` (compose + two small scripts), so the ACL
-  image and the CI stack are untouched.
-
-**Negative / costs**
-
-- The two compose files diverge further: the CI stack seeds at test time, the local stack at bring-up.
-  Mitigated by reusing the same underlying scripts and cross-referencing them.
-- The ACL entrypoint override couples the local ACL to the seed-written file path (`/seed/acl.env`);
-  if the seed fails, the ACL fails to start (loud, healthcheck-visible — preferred over silently
-  running with a placeholder).
-- Container-IP-based URLs are re-derived on each bring-up; a keep-volumes restart with a changed
-  OpenZaak IP relies on OpenZaak rebuilding hyperlinked URLs from the request host (it does) so the
-  idempotent re-seed reports current-IP URLs.
-
-## Alternatives considered
-
-- **ACL resolves its zaaktype by identificatie (`BIG-REGISTRATIE`) at startup.** The cleaner,
-  less-brittle design — no server-assigned URL to capture — and it would help the CI stack too. But it
-  changes a service's runtime behaviour and its config contract, needs new ACL tests + mutation
-  coverage, and still needs a seed step to *create* the zaaktype. Deliberately split out as its own
-  slice with its own ADR (S-27 / #113) rather than folded into this infra-only fix.
-- **A documented `make local-seed` step run after `make local`.** Smallest change, but it fails the
-  slice's "no manual seeding" outcome — the local stack is exactly the one meant to just work in a
-  browser. Rejected.
-- **Fixed zaaktype UUID via OpenZaak `setup_configuration`/fixtures.** OpenZaak assigns UUIDs on POST;
-  declaratively creating a fully *published* zaaktype (statustypen + resultaattypen validated against
-  the Selectielijst + roltypen + iot relations) is not something `setup_configuration` supports
-  cleanly in 1.28.2. Rejected as more fragile than reusing `seed_catalogus.py`.

docs/architecture/adr-0021-acl-resolves-zaaktype-by-identificatie.md

@@ -1,67 +0,0 @@
-# ADR-0021: The ACL resolves its zaaktype by identificatie, not a pinned URL
-
-- **Status:** Accepted
-- **Date:** 2026-07-22
-- **Deciders:** Respellion engineering
-- **Relates to:** S-27 (#113), proposed in #117. The cleaner design deliberately split out of S-B04
-  (#110, ADR-0020), which fixed the local stack with an infra-only bootstrap.
-
-## Context
-
-The ACL was handed a **pinned zaaktype URL** (`Acl__Defaults__ZaaktypeUrl`) and diploma
-informatieobjecttype URL. OpenZaak assigns those UUIDs at creation, so the URL is not knowable when
-the compose file is written — every stack had to seed the catalogus and then capture + inject the
-resulting URLs out of band: `run-domain-check.sh` for CI, and the `local-seed` → `acl.env` bootstrap
-(ADR-0020) for `make local`. Brittle, and a stale/placeholder URL failed opaquely (OpenZaak 400).
-
-## Decision
-
-**The ACL resolves its zaaktype (by `identificatie`) and diploma informatieobjecttype (by
-`omschrijving`) from OpenZaak's Catalogi API, instead of being handed the URLs.**
-
-- **Config:** `AclDefaults.ZaaktypeUrl`/`InformatieobjecttypeUrl` → `ZaaktypeIdentificatie`
-  (`BIG-REGISTRATIE`) / `InformatieobjecttypeOmschrijving` (`Diploma`).
-- **Lookup (gateway, §8.1):** `GET /catalogi/api/v1/zaaktypen?status=definitief&identificatie=…` →
-  the published zaaktype URL; `GET /catalogi/api/v1/informatieobjecttypen?status=definitief` matched
-  on `omschrijving`. Reuses the gateway's existing catalogus-query machinery.
-- **Timing = lazy + cached (`CachedZaaktypeCatalog`).** Resolve on first use (first zaak open /
-  document store) and cache for the process lifetime. Lazy avoids a startup ordering coupling — the
-  ACL never crash-loops when it boots before the catalogus is published. A **failed** resolution is
-  not cached, so it is retried on the next call (e.g. once the zaaktype is published); a restart
-  re-resolves.
-- **Failure mode:** no published match → a clear "No published zaaktype with identificatie '…' found
-  in OpenZaak — is the BIG catalogus seeded and published?" error, replacing the opaque placeholder
-  400.
-
-## Consequences
-
-**Positive**
-
-- No stack captures or injects a server-assigned URL any more: `run-domain-check.sh` drops the
-  `ACL_ZAAKTYPE_URL`/`ACL_INFORMATIEOBJECTTYPE_URL` capture+inject, `docker-compose.yml`/`.local.yml`
-  drop the placeholder URL env, and `local-seed`/`acl.env` shrink to a single line. The ACL
-  self-configures from the catalogus it already talks to.
-- The failure mode is legible (a named error instead of a 400 on a zeros-UUID).
-
-**Negative / costs**
-
-- The ACL still needs its OpenZaak **BaseUrl** pointed at a **URL-valid host (a container IP)**, so
-  the base-URL injection from ADR-0020 stays (the local `acl.env` now carries only that; CI keeps
-  `ACL_OPENZAAK_BASEURL`). This is **not** something S-27 can remove: OpenZaak validates the
-  `zaaktype` field on zaak-create with Django's URLValidator and **rejects a single-label host**
-  (`http://openzaak:8000/…` → `zaaktype: bad-url, "Voer een geldige URL in."`, confirmed empirically).
-  So ADR-0020's `seed-env` volume + ACL entrypoint shim are **simplified, not deleted**.
-- New branching in the gateway/resolver → unit + integration test surface; the mutation ratchet
-  covers it (§5).
-- A seed step still **creates + publishes** the zaaktype (this ADR changes only discovery). Reaching
-  OpenZaak's Catalogi API to *seed* likewise needs the IP host (its query params hit the same
-  URLValidator) — unchanged from before.
-
-## Alternatives considered
-
-- **Resolve at startup** (eager). Simpler cache, but reintroduces the ordering coupling (crash-loop
-  if the catalogus isn't published yet). Rejected in favour of lazy.
-- **Per-request resolution** (no cache). No stale-cache risk, but a Catalogi lookup on every ACL
-  operation. Rejected; a process-lifetime cache with restart-to-refresh is enough here.
-- **Keep the pinned URL** (status quo / ADR-0020 only). Rejected — the brittleness this ADR removes is
-  exactly what S-27 was carved out to fix.

docs/architecture/adr-0022-quartz-scheduler.md

@@ -1,79 +0,0 @@
-# ADR-0022: Quartz.NET for time-triggered fleet sweeps
-
-- **Status:** Accepted
-- **Date:** 2026-07-23
-- **Deciders:** Respellion engineering
-- **Slice:** S-17 (#18) · **Proposal issue:** #120
-
-## Context
-
-A BIG inscription is valid for a fixed term; before it lapses the zorgprofessional
-must herregistreren. S-17 adds a **herregistratie reminder sweep**: once a day,
-scan the register for inscriptions whose deadline is within the reminder window and
-remind each one.
-
-The Domain Service already runs periodic background work — `OpenZaakJobPump`,
-`BeoordelingEscalatiePump`, `RegistratieVerlopenPump`. Those are **continuous job
-pollers**: they drain Flowable's external-task/job queues at-least-once, picking up
-work as soon as it is parked, on a short poll interval. The reminder sweep is a
-different shape of work: **time-triggered**, once a day, over our own store — there
-is no queue to drain and no "as soon as possible" requirement.
-
-The PRD already names the scheduler component: "Scheduler (Quartz.NET): fleet-wide
-sweeps (expiry, reminders)" (§39, §94). Adding Quartz.NET is nonetheless a new
-dependency, so this decision is recorded before the code lands (CLAUDE.md §14).
-
-## Decision
-
-**Use Quartz.NET for time-triggered fleet sweeps, starting with the herregistratie
-reminder sweep. Leave the existing pumps as `BackgroundService` job pollers.**
-
-- `HerregistratieReminderJob` (a Quartz `IJob`) is fired by a cron trigger — daily
-  at 03:00 by default, overridable with `Quartz__Cron`. It is a thin shell: it
-  resolves the pure `HerregistratieReminderSweep` (application layer) and logs how
-  many reminders went out.
-- The sweep's rule lives in the domain: `Registration.HerregistratieReminderDue(asOf)`,
-  which the store query and the sweep both build on. The sweep marks each reminded
-  inscription (`HerregistratieReminderVerstuurd`), so a re-fire reminds no one twice
-  (§8.6).
-
-Two options were rejected:
-
-1. **A `BackgroundService` with a 24h `Task.Delay`.** No new dependency, but it
-   drifts to process-start time, has no cron/misfire semantics, and contradicts the
-   PRD's named component. A daily "run at 03:00" is exactly what cron scheduling is
-   for.
-2. **Migrating the three pumps onto Quartz too, for one mechanism.** Rejected: the
-   pumps are not schedulers. Forcing a "run at time T" tool onto "drain this queue
-   continuously" work is churn and a boundary change for negative benefit. The
-   teachable distinction is worth keeping: **pumps drain queues; Quartz fires
-   sweeps.**
-
-## Consequences
-
-**Positive**
-
-- Cron scheduling with restart-stable timing and misfire handling, for free.
-- The reminder rule is one domain method, reused by the store query and the sweep;
-  the scheduler owns none of the policy.
-- The reference app now demonstrates the intended Scheduler component.
-
-**Negative / costs**
-
-- One new dependency (`Quartz`, `Quartz.Extensions.Hosting`) in the Domain Service.
-- Two periodic-work mechanisms coexist (pumps + Quartz). Deliberate — they model
-  two genuinely different concerns, documented here.
-
-**Follow-up**
-
-- The validity term (5 years) and reminder lead time (16 weeks) are domain
-  calibration knobs; promote them to beheer config (S-15) if a demo needs them
-  per-catalogus.
-- The Quartz job stores its schedule in RAM (`RAMJobStore`); a persistent/clustered
-  store is a later concern if the Domain Service is scaled out.
-
-## Coupling rules touched (CLAUDE.md §8)
-
-None. Quartz is internal to the Domain Service and drives an application use case
-over the store port. No ZGW or Flowable coupling is added; the sweep talks to no
-peer module.

docs/architecture/adr-0023-observability-stack.md

@@ -1,74 +0,0 @@
-# ADR-0023: Grafana-native observability stack (Tempo + Prometheus + Grafana)
-
-- **Status:** Accepted
-- **Date:** 2026-07-23
-- **Deciders:** Respellion engineering
-- **Slice:** S-16a (#122), first of the S-16 (#17) split
-
-## Context
-
-The PRD calls for "OpenTelemetry traces, Prometheus metrics; a local Grafana with
-pre-built dashboards" (§80). S-16 was split (CLAUDE.md §13) into a backplane slice
-(this one), distributed tracing (#123), and metrics + dashboards (#124). The
-backplane must stand up first: a local, CI-friendly place for traces and metrics to
-land, viewable in one UI, reaching green health within the 3-minute compose budget.
-
-Two shape decisions are non-obvious enough to record.
-
-## Decision
-
-**Run a Grafana-native stack — Grafana Tempo (traces) + Prometheus (metrics) +
-Grafana (UI) — with the services exporting OTLP straight to Tempo (no collector),
-and ship the config baked into small built images.**
-
-### Trace backend: Tempo (not Jaeger)
-
-Tempo keeps everything under one Grafana pane alongside metrics (and later logs),
-which is exactly the "local Grafana with dashboards" the PRD asks for. Jaeger would
-add a second UI and a second mental model for no benefit at this scale.
-
-### No OTLP collector
-
-Tempo ingests OTLP directly (gRPC 4317 / HTTP 4318) and Prometheus scrapes each
-service's `/metrics`, so a collector would be a hop that processes nothing. Skipped.
-If we later need fan-out, tail sampling, or log processing, a collector is an
-additive change — the services already speak OTLP.
-
-### Config baked into built images, not config volumes
-
-The upstream Common Ground modules (OpenZaak, NRC, Keycloak, Flowable) run as
-**verbatim** images and get their config streamed into external named volumes by
-`infra/seed-config.sh`, because bind mounts don't reach sibling containers on the
-CI runner (see `docs/runbooks/gitea-actions-gotchas.md`). The observability tools
-are **not** peer modules we must run verbatim, so we take the simpler path: a
-three-line `Dockerfile` per tool that `COPY`s its config in. This reaches sibling
-containers everywhere (docker, podman, CI) with no seed step, no `CFG_VOLS` entry,
-and no Makefile sprawl.
-
-### Verified, not assumed
-
-`infra/run-observability-check.sh` (the `verify-observability` step, run early in CI
-`verify-stack`) asks Grafana to reach both datasources — Prometheus via its health
-method, Tempo via the datasource proxy (Tempo's Grafana plugin implements no health
-method) — so the check proves the datasources are actually wired, not merely that
-containers started. The containers are not in `WAIT_SVCS`; the check polls Grafana
-itself, so no in-image healthcheck tool is required.
-
-## Consequences
-
-**Positive**
-
-- One UI for traces + metrics + (future) logs. Config is versioned in
-  `infra/observability/` and self-contained in the images.
-- Backplane is independent of app instrumentation — #123 and #124 build on it.
-
-**Negative / costs**
-
-- Three more images built each CI run (kept small; not on the health-gate list).
-- Storage is ephemeral container fs — a demo backplane, not a retention target.
-  Object storage for Tempo / remote-write for Prometheus is a later concern.
-
-## Coupling rules touched (CLAUDE.md §8)
-
-None. The stack is passive infrastructure: services *push* OTLP and *expose*
-`/metrics`; nothing in the stack calls into a service or a peer module.

docs/architecture/adr-0024-prometheus-aspnetcore-exporter.md

@@ -1,53 +0,0 @@
-# ADR-0024: Expose OTel metrics with the (prerelease) Prometheus AspNetCore exporter
-
-- **Status:** Accepted
-- **Date:** 2026-07-24
-- **Deciders:** Respellion engineering
-- **Slice:** S-16c (#124), last of the S-16 (#17) split
-
-## Context
-
-ADR-0023 already fixed the shape of metrics collection: **Prometheus scrapes each
-service's `/metrics`** (pull, no collector). S-16c implements it. That needs a package
-that turns the OpenTelemetry `MeterProvider` into a Prometheus scrape endpoint inside
-ASP.NET Core. The canonical one is `OpenTelemetry.Exporter.Prometheus.AspNetCore`
-(`AddPrometheusExporter()` + `app.MapPrometheusScrapingEndpoint()`).
-
-The catch: that exporter has **never had a stable release** — the whole OTel .NET
-Prometheus exporter line is versioned `-beta` (we pin `1.17.0-beta.1`, matched to the
-`1.17.0` core we already use). Adding it is a new dependency (CLAUDE.md §14), and taking
-a prerelease package into all five services is the decision worth recording.
-
-## Decision
-
-**Add `OpenTelemetry.Exporter.Prometheus.AspNetCore` `1.17.0-beta.1` to the five .NET
-services and expose `/metrics` with it.**
-
-- What it gives us: the OTel-native pull endpoint, so the meters we already register for
-  tracing-adjacent instrumentation surface as Prometheus text with zero extra plumbing.
-- What we'd write to replace it: a hand-rolled `IMetricsListener`/`MeterListener` that
-  formats Prometheus exposition text — real work, and a reimplementation of a widely-used
-  library for no gain.
-- Risk it adds: a prerelease API that can shift between betas. Contained: it is only
-  wired in `Program.cs` (two calls per service, excluded from mutation), the version is
-  pinned, and `verify-metrics` proves the endpoint + scrape actually work each CI run.
-
-The alternative — pushing metrics over OTLP to a collector that re-exposes them — was
-already rejected in ADR-0023 (no collector hop). Not revisited here.
-
-## Consequences
-
-**Positive**
-
-- Golden-signal metrics on `/metrics` with the standard OTel names
-  (`http_server_request_duration_seconds`, `dotnet_*`), scraped straight by Prometheus.
-- No collector, no bespoke exposition code.
-
-**Negative / costs**
-
-- A `-beta` package in production services. Mitigated by the pin + the `verify-metrics`
-  CI gate; upgrading tracks the OTel core version bumps.
-
-## Coupling rules touched (CLAUDE.md §8)
-
-None. Metrics are passive: Prometheus pulls; no service calls into the stack.

docs/demo-script.md

@@ -5,164 +5,6 @@ copy-pasteable walkthrough against a local `make up` stack.
 
 ---
 
-## S-16c — Prometheus metrics + golden-signal Grafana dashboard (#124, ADR-0023)
-
-**Outcome:** the five .NET services now expose OpenTelemetry metrics in Prometheus format at `/metrics`
-— ASP.NET Core + `HttpClient` instrumentation plus the built-in `System.Runtime` meter. Prometheus
-scrapes each service (one job per service), and a **pre-built Grafana dashboard** — *Request path —
-golden signals* — plots the four golden signals: **traffic** (req/s), **errors** (5xx/s), **latency**
-(p95 request duration), and **saturation** (CPU cores in use), split by service. It populates under load.
-
-```bash
-# 1. Automated (a CI verify-stack step): generate BFF traffic and assert Prometheus scraped the
-#    golden-signal metric from every service.
-make verify-metrics              # → OK — targets up: [...]; request metric scraped from: [...]
-
-# 2. By hand: drive the stack, generate some load, then open the dashboard.
-make up
-for i in $(seq 1 50); do curl -s localhost:8080/openbaar/register >/dev/null; done   # BFF → projection-api
-open http://localhost:3000       # Grafana → Dashboards → "Request path — golden signals"
-open http://localhost:9090/targets   # Prometheus → every service target UP
-```
-
-**The path:** each host adds `.WithMetrics(AddAspNetCoreInstrumentation + AddHttpClientInstrumentation +
-AddMeter("System.Runtime") + AddPrometheusExporter)` and maps `/metrics`; Prometheus scrapes
-`<service>:8080/metrics` (config in `infra/observability/prometheus/prometheus.yml`); Grafana ships the
-dashboard via provisioning against the fixed `prometheus` datasource uid. No metrics are pushed over
-OTLP — Prometheus pulls, so there is no collector hop (ADR-0023).
-
----
-
-## S-16b — distributed traces across the .NET services (#123, ADR-0023)
-
-**Outcome:** the five .NET services (BFF, Domain, ACL, projection-api, event-subscriber) now emit
-OpenTelemetry traces — ASP.NET Core + `HttpClient` auto-instrumentation, exported over OTLP to Tempo.
-Because every cross-service call goes through a typed `HttpClient`, the W3C `traceparent` propagates for
-free, so a request is **one connected trace** across the services (bff → domain → acl → openzaak;
-bff → projection-api). `/health` is filtered out. No browser-side instrumentation yet, so the trace
-begins at the BFF; the async Flowable-poll boundary is a separate trace (ADR-0023).
-
-```bash
-# 1. Automated (a CI verify-stack step): generate BFF traffic and assert Tempo holds one trace
-#    spanning multiple services.
-make verify-tracing              # → OK — trace <id> spans ['bff', 'projection-api']
-
-# 2. By hand: drive the stack, then explore traces in Grafana.
-make up
-curl -s localhost:8080/openbaar/register >/dev/null   # BFF → projection-api
-open http://localhost:3000       # Grafana → Explore → Tempo → Search → service.name = bff → open a trace
-```
-
-**The path:** each host wires `AddOpenTelemetry().WithTracing(AddAspNetCoreInstrumentation +
-AddHttpClientInstrumentation + AddOtlpExporter)`; `OTEL_SERVICE_NAME` / `OTEL_EXPORTER_OTLP_ENDPOINT`
-come from compose; spans export to **tempo:4317** and render in Grafana against the provisioned Tempo
-datasource.
-
----
-
-## S-16a — observability backplane: Tempo + Prometheus + Grafana (#122, ADR-0023)
-
-**Outcome:** the compose stack now includes a Grafana-native observability backplane — **Tempo** (OTLP
-trace ingest on 4317/4318), **Prometheus**, and **Grafana** with both datasources auto-provisioned.
-Nothing is instrumented yet (traces land in S-16b, metrics + dashboards in S-16c); this slice stands the
-backplane up and proves Grafana can reach both datasources. Config is baked into small built images
-(`infra/observability/`) — no collector, no config-volume seeding.
-
-```bash
-# 1. Bring the stack up, then assert the backplane is live (Grafana healthy + Tempo/Prometheus
-#    datasources reachable through Grafana). This is a CI verify-stack step.
-make up
-make verify-observability        # → ✓ Grafana healthy  ✓ Prometheus reachable  ✓ Tempo reachable
-
-# 2. Or just the backplane, no full stack needed (no external egress):
-docker compose -f infra/docker-compose.yml up -d --build tempo prometheus grafana
-open http://localhost:3000        # Grafana (admin/admin) → Connections → Data sources: Prometheus + Tempo
-open http://localhost:9090        # Prometheus
-```
-
-**The path:** services will export OTLP → **Tempo:4317** and expose `/metrics` ← **Prometheus** scrapes;
-**Grafana** (:3000) reads both via provisioned datasources with fixed uids `tempo` / `prometheus`.
-
----
-
-## S-17 — herregistratie reminder sweep on a Quartz cron (#18, ADR-0022)
-
-**Outcome:** an inscription (INGESCHREVEN) now carries the moment it was entered in the register, from
-which its herregistratie deadline is derived (inscription + 5-year validity). A **Quartz.NET** cron job
-in the Domain Service sweeps once a day (03:00, overridable via `Quartz__Cron`): every inscription
-inside the 90-day window before its deadline is flagged `HerregistratieReminderVerstuurd` and logged.
-The sweep is idempotent — a re-fire reminds no one twice — and is a deliberately different mechanism
-from the queue-draining pumps (Quartz fires time-triggered sweeps; pumps drain Flowable queues,
-ADR-0022). There is no outbound notification in v1: the reminder is the flag on the aggregate plus a
-log line.
-
-```bash
-# 1. The domain unit tests prove the rule and the sweep end to end (rule → store query → sweep):
-cd services/domain && dotnet test Big.Tests/Big.Tests.csproj \
-  --filter "FullyQualifiedName~Herregistratie|FullyQualifiedName~ReminderSweep"
-#    → the reminder is due once the 90-day window opens, not before; a reminded inscription is skipped
-#      on the next sweep; the sweep flags + persists every due inscription and returns their ids.
-
-# 2. The read model surfaces the deadline once a registration is approved — the field the sweep acts on:
-curl -s localhost:8000/registrations/<id> | jq '{status, herregistratieVoor, herregistratieReminderVerstuurd}'
-#    → after approval: herregistratieVoor is inscription + 5 years; the flag flips true once swept.
-```
-
-**The path:** `Registration.Approve(now)` stamps `IngeschrevenOp` → daily Quartz `HerregistratieReminderJob`
-→ `HerregistratieReminderSweep` → `IRegistrationStore.FindDueForHerregistratieReminderAsync` (filtered by
-the aggregate's own `HerregistratieReminderDue` rule) → `MarkHerregistratieReminderVerstuurd` + log.
-
----
-
-## S-B04 — `make local` completes the whole flow with no manual seeding (#110, ADR-0020)
-
-**Outcome:** the host-browser stack (`make local`) now self-seeds at bring-up — it publishes the BIG
-zaaktype and wires the ACL to it, deploys the `diploma-eligibility` DMN, and registers the NRC
-abonnement — so a fresh bring-up runs submit → werkbak → openbaar without the manual seeding the
-`verify-*` scripts do for CI. (Previously the process stuck at `OpenZaakAanmaken`, the werkbak stayed
-empty, and the openbaar register showed nothing.)
-
-```bash
-# 1. Fresh bring-up (self-seeding init containers: local-seed, nrc-subscribe; DMN in flowable-init).
-make local
-
-# 2. Assert the whole flow works with no manual seeding — submit opens a zaak, documents route it to
-#    the werkbak, and the reference appears in the openbaar register:
-make verify-local     # → "OK — a fresh local stack completed the flow with no manual seeding ..."
-
-# 3. Or by hand in the browser: log in at http://localhost:8140 (jan-burger / test123), submit +
-#    upload a PDF, then approve it in the werkbak at http://localhost:8142 (merel-behandelaar /
-#    test123); it shows as INGESCHREVEN in the openbaar register at http://localhost:8141.
-```
-
-> The zaaktype is discovered by the ACL itself since S-27 (below); `local-seed`'s `acl.env` now
-> carries only OpenZaak's IP base URL, which the ACL still needs because OpenZaak rejects a
-> single-label host on zaak-create (ADR-0020 + ADR-0021).
-
----
-
-## S-27 — ACL resolves its zaaktype by identificatie, not a pinned URL (#113, ADR-0021)
-
-**Outcome:** the ACL discovers its BIG zaaktype (by `identificatie`) and diploma informatieobjecttype
-(by `omschrijving`) from OpenZaak's Catalogi API, instead of being handed the server-assigned URLs.
-No user-visible behaviour change — the flow runs exactly as before — but no stack captures/injects a
-zaaktype URL any more, and a missing catalogus now fails with a clear message instead of an opaque 400.
-
-```bash
-# The live ACL↔OpenZaak integration test proves resolution against a real seeded OpenZaak:
-make verify-acl     # → "resolves the published BIG-REGISTRATIE zaaktype + Diploma informatieobjecttype by business key"
-
-# End-to-end unchanged (the ACL self-discovers the zaaktype during the flow):
-make verify-local   # local stack — still green, now with no zaaktype-URL injection
-make verify-domain  # CI stack — recreates the ACL pointed only at OpenZaak's IP (no URL to inject)
-```
-
-> The ACL still needs its OpenZaak base URL at a URL-valid host (a container IP): OpenZaak's
-> URLValidator rejects a single-label host like `openzaak:8000` on zaak-create. So ADR-0020's base-URL
-> injection stays; only the zaaktype/informatieobjecttype **URL** injection is gone (ADR-0021).
-
----
-
 ## S-08d — Walking skeleton complete: browser → submit, end-to-end
 
 **Outcome:** the self-service portal is served in the stack and the full front-of-house happy path

docs/synthetic-data.md

@@ -14,7 +14,6 @@ All test users share the password **`test123`**.
 | Realm | Mimics | User | Identifying claim |
 |---|---|---|---|
 | `digid` | DigiD (burgers) | `jan-burger` | `bsn` = `123456782` |
-| `digid` | DigiD (burgers) | `sanne-burger` | `bsn` = `231477813` (S-26 resume e2e — its own user so it can leave an open registration) |
 | `eherkenning` | eHerkenning (bedrijven) | `acme-ondernemer` | `kvk` = `12345678` |
 | `eidas` | eIDAS (EU) | `pierre-dupont` | `eidas_id` = `FR/NL/AB-1234-5678` |
 | `medewerker` | Internal staff | `merel-behandelaar` | role `behandelaar` |

infra/docker-compose.local.yml

@@ -1,12 +1,7 @@
 # LOCAL development stack — runs with a plain `docker compose up`, no make / no
-# external seed step / no bash. Use this on a local engine (Docker Desktop on Windows or
+# seed step / no bash. Use this on a local engine (Docker Desktop on Windows or
 # macOS, or rootless Podman on Linux).
 #
-# Self-seeding (S-B04, #110, ADR-0020): unlike the CI stack — where the verify-* scripts seed the
-# zaaktype and register the NRC abonnement at test time — this stack does that itself, via one-shot
-# init containers (local-seed, nrc-subscribe) + a DMN deploy in flowable-init, so a fresh bring-up
-# completes the whole flow with no manual steps. `make verify-local` asserts it.
-#
 #   docker compose -f infra/docker-compose.local.yml up -d --build         # podman
 #   docker compose -f infra/docker-compose.local.yml up -d --build --wait  # Docker Desktop
 #   docker compose -f infra/docker-compose.local.yml down --volumes
@@ -262,79 +257,38 @@ services:
     restart: "no"
     volumes:
       - ../workflows/registratie.bpmn:/work/registratie.bpmn:ro,z
-      - ../workflows/diploma-eligibility.dmn:/work/diploma-eligibility.dmn:ro,z
     command:
       - sh
       - -c
       - |
-        svc=http://flowable-rest:8080/flowable-rest/service/repository/deployments
-        dmn=http://flowable-rest:8080/flowable-rest/dmn-api/dmn-repository/deployments
-        until curl -sf -u rest-admin:test "$$svc" >/dev/null 2>&1; do echo "waiting for flowable-rest..."; sleep 3; done
-        # Deploy the DMN to the DMN engine and the BPMN to the process engine as SEPARATE deployments:
-        # flowable-rest does NOT cascade a .dmn bundled in a process .bar into the DMN engine, so the DMN
-        # must go via dmn-api. The registratie process's DMN service task then resolves the decision across
-        # deployments by key (S-13, ADR-0016). Without this the WachtOpDocumenten completion 404s on the
-        # missing decision and the case never reaches Beoordelen (S-B04). Both steps are idempotent.
-        if curl -s -u rest-admin:test "$$dmn" | grep -q '"name":"diploma-eligibility.dmn"'; then
-          echo "diploma-eligibility DMN already deployed; skip"
+        base=http://flowable-rest:8080/flowable-rest/service/repository/deployments
+        until curl -sf -u rest-admin:test "$$base" >/dev/null 2>&1; do echo "waiting for flowable-rest..."; sleep 3; done
+        if curl -s -u rest-admin:test "$$base?name=registratie" | grep -q '"name":"registratie"'; then
+          echo "registratie already deployed; skip"
         else
-          curl -sf -u rest-admin:test -F 'file=@/work/diploma-eligibility.dmn;filename=diploma-eligibility.dmn' "$$dmn" >/dev/null && echo "deployed diploma-eligibility DMN"
-        fi
-        if curl -s -u rest-admin:test "$$svc?name=registratie" | grep -q '"name":"registratie"'; then
-          echo "registratie BPMN already deployed; skip"
-        else
-          curl -sf -u rest-admin:test -F 'file=@/work/registratie.bpmn;filename=registratie.bpmn' "$$svc" >/dev/null && echo "deployed registratie BPMN"
+          curl -sf -u rest-admin:test -F 'file=@/work/registratie.bpmn;filename=registratie.bpmn' "$$base" >/dev/null && echo "deployed registratie"
         fi
     depends_on:
       flowable-rest:
         condition: service_started
     networks: [cg]
 
-  # ── Local bootstrap: seed the zaaktype + wire the ACL (S-B04, #110, ADR-0020) ─────────────────
-  # The zaaktype UUID is assigned by OpenZaak at creation, so it can't be a static value in this
-  # file. This one-shot seeds + publishes the BIG zaaktype (and the Diploma informatieobjecttype)
-  # and writes their server-assigned URLs into a shared volume as acl.env, which the ACL sources on
-  # startup (below). It is the local-stack equivalent of what infra/run-domain-check.sh does for CI.
-  # Reaches OpenZaak by its container IP because a single-label host fails OpenZaak's URLValidator.
-  local-seed:
-    image: docker.io/library/python:3-slim
-    restart: "no"
-    volumes:
-      - ./openzaak/seed_catalogus.py:/work/seed_catalogus.py:ro,z
-      - ./local/seed-zaaktype.sh:/work/seed-zaaktype.sh:ro,z
-      - seed-env:/out
-    command: ["sh", "/work/seed-zaaktype.sh"]
-    depends_on:
-      openzaak:
-        condition: service_healthy
-    networks: [cg]
-
   # ── ACL ──────────────────────────────────────────────────────────────────
   acl:
     build:
       context: ../services/acl
       dockerfile: Dockerfile
     image: register-referentie/acl:dev
-    # The ACL discovers its zaaktype + informatieobjecttype URLs from the Catalogi API by the business
-    # keys below (S-27, ADR-0021), so no URL is injected. It still needs its OpenZaak BaseUrl pointed at
-    # a URL-valid host (OpenZaak rejects a single-label host like `openzaak` on zaak-create), so the
-    # local-seed one-shot writes that IP base into seed-env:/seed/acl.env, which the entrypoint sources
-    # (set -a) before the app starts. A runtime-generated env file is why we override the entrypoint here
-    # rather than use `env_file:` (which compose reads at parse time, before the seed has run).
-    entrypoint: ["/bin/sh", "-c", "set -a; . /seed/acl.env; set +a; exec dotnet Acl.Api.dll"]
     environment:
-      Acl__OpenZaak__BaseUrl: http://openzaak:8000/   # placeholder; seed-env/acl.env supplies the IP base
+      Acl__OpenZaak__BaseUrl: http://openzaak:8000/
       Acl__OpenZaak__ClientId: big-reference-seed
       Acl__OpenZaak__Secret: insecure-dev-secret-change-me
       Acl__Defaults__Bronorganisatie: "517439943"
       Acl__Defaults__VerantwoordelijkeOrganisatie: "517439943"
       Acl__Defaults__Vertrouwelijkheidaanduiding: openbaar
-      Acl__Defaults__ZaaktypeIdentificatie: BIG-REGISTRATIE
-      Acl__Defaults__InformatieobjecttypeOmschrijving: Diploma
+      Acl__Defaults__ZaaktypeUrl: ${ACL_ZAAKTYPE_URL:-http://openzaak:8000/catalogi/api/v1/zaaktypen/00000000-0000-0000-0000-000000000000}
     ports:
       - "8100:8080"
-    volumes:
-      - seed-env:/seed:ro
     healthcheck:
       test: ["CMD", "curl", "-fsS", "http://localhost:8080/health"]
       interval: 5s
@@ -344,8 +298,6 @@ services:
     depends_on:
       openzaak:
         condition: service_healthy
-      local-seed:
-        condition: service_completed_successfully
     networks: [cg]
 
   # ── BFF ──────────────────────────────────────────────────────────────────
@@ -448,31 +400,6 @@ services:
         condition: service_healthy
     networks: [cg]
 
-  # ── Local bootstrap: register the NRC abonnement (S-B04, #110, ADR-0020) ──────────────────────
-  # Without a subscription, OpenZaak's notifications reach NRC and are delivered nowhere, so the
-  # projection (and the openbaar register) stay empty. This one-shot registers an abonnement on the
-  # `zaken` kanaal pointing at the event-subscriber's /notifications callback — the CI equivalent is
-  # infra/verify-notification-driver.py. The callback uses the event-subscriber's container IP (a
-  # single-label host fails NRC's URLValidator). It is a leaf (nothing depends on it), so it can wait
-  # for the event-subscriber without creating a cycle with the ACL bootstrap.
-  nrc-subscribe:
-    image: docker.io/library/python:3-slim
-    restart: "no"
-    volumes:
-      - ./local/register-abonnement.py:/work/register-abonnement.py:ro,z
-    environment:
-      NRC_BASE: http://nrc-web:8000
-      SINK_HOST: event-subscriber
-      SINK_PORT: "8080"
-      SINK_AUTH: ${NOTIFICATION_WEBHOOK_TOKEN:-Bearer big-reference-notifications}
-    command: ["python", "/work/register-abonnement.py"]
-    depends_on:
-      nrc-web:
-        condition: service_healthy
-      event-subscriber:
-        condition: service_started
-    networks: [cg]
-
   projection-api:
     build:
       context: ..
@@ -565,8 +492,6 @@ volumes:
   nrc-db:
   flowable-db:
   projection-db:
-  # Carries the seed-generated acl.env (server-assigned zaaktype URLs) from local-seed to the ACL.
-  seed-env:
 
 networks:
   cg:

infra/docker-compose.yml

@@ -15,12 +15,12 @@
 #
 #   docker compose -f infra/docker-compose.yml up -d --build --wait
 #
-# After first boot, seed + publish the BIG catalogus:
-#   OZ_PUBLISH=1 python infra/openzaak/seed_catalogus.py
-# The ACL discovers the zaaktype by identificatie (S-27, ADR-0021), so there is no URL to inject —
-# just point its BaseUrl at an OpenZaak host OpenZaak accepts on zaak-create (a container IP; a
-# single-label host is rejected):
-#   ACL_OPENZAAK_BASEURL=http://<openzaak-ip>:8000/ docker compose -f infra/docker-compose.yml up -d acl
+# After first boot, seed the BIG catalogus and note the zaaktype URL:
+#   python infra/openzaak/seed_catalogus.py
+# Then set ACL_ZAAKTYPE_URL in a .env file or your shell and re-up the acl
+# service:
+#   export ACL_ZAAKTYPE_URL=http://openzaak:8000/catalogi/api/v1/zaaktypen/<uuid>
+#   docker compose -f infra/docker-compose.yml up -d acl
 
 services:
 
@@ -296,10 +296,6 @@ services:
       dockerfile: Dockerfile
     image: register-referentie/acl:dev
     environment:
-      # OpenTelemetry traces → Tempo (S-16b, ADR-0023).
-      OTEL_EXPORTER_OTLP_ENDPOINT: http://tempo:4317
-      OTEL_EXPORTER_OTLP_PROTOCOL: grpc
-      OTEL_SERVICE_NAME: acl
       # Overridable so verify-domain can point the ACL at the same OpenZaak host that
       # owns the seeded zaaktype URL (host-consistent zaak creation, ADR-0009).
       Acl__OpenZaak__BaseUrl: ${ACL_OPENZAAK_BASEURL:-http://openzaak:8000/}
@@ -308,12 +304,11 @@ services:
       Acl__Defaults__Bronorganisatie: "517439943"
       Acl__Defaults__VerantwoordelijkeOrganisatie: "517439943"
       Acl__Defaults__Vertrouwelijkheidaanduiding: openbaar
-      # The ACL resolves the (server-assigned) zaaktype + diploma informatieobjecttype URLs from the
-      # Catalogi API by these stable business keys (S-27, ADR-0021) — no URL to capture and inject.
-      # BaseUrl above stays overridable because OpenZaak rejects a single-label host on zaak creation,
-      # so verify-domain still points the ACL at OpenZaak's container IP.
-      Acl__Defaults__ZaaktypeIdentificatie: BIG-REGISTRATIE
-      Acl__Defaults__InformatieobjecttypeOmschrijving: Diploma
+      # Override with the real zaaktype URL after running seed_catalogus.py.
+      Acl__Defaults__ZaaktypeUrl: ${ACL_ZAAKTYPE_URL:-http://openzaak:8000/catalogi/api/v1/zaaktypen/00000000-0000-0000-0000-000000000000}
+      # The informatieobjecttype a diploma is filed under (S-10b). Placeholder until seed_catalogus.py
+      # (OZ_PUBLISH=1) reports the real URL, which verify-domain injects like the zaaktype URL.
+      Acl__Defaults__InformatieobjecttypeUrl: ${ACL_INFORMATIEOBJECTTYPE_URL:-http://openzaak:8000/catalogi/api/v1/informatieobjecttypen/00000000-0000-0000-0000-000000000000}
     ports:
       - "8100:8080"
     healthcheck:
@@ -338,10 +333,6 @@ services:
       dockerfile: Dockerfile
     image: register-referentie/domain:dev
     environment:
-      # OpenTelemetry traces → Tempo (S-16b, ADR-0023).
-      OTEL_EXPORTER_OTLP_ENDPOINT: http://tempo:4317
-      OTEL_EXPORTER_OTLP_PROTOCOL: grpc
-      OTEL_SERVICE_NAME: domain
       Flowable__BaseUrl: http://flowable-rest:8080/flowable-rest/
       Flowable__Username: rest-admin
       Flowable__Password: test
@@ -368,10 +359,6 @@ services:
       dockerfile: Dockerfile
     image: register-referentie/bff:dev
     environment:
-      # OpenTelemetry traces → Tempo (S-16b, ADR-0023).
-      OTEL_EXPORTER_OTLP_ENDPOINT: http://tempo:4317
-      OTEL_EXPORTER_OTLP_PROTOCOL: grpc
-      OTEL_SERVICE_NAME: bff
       # The BFF is the portals' only backend; it validates digid tokens and fans out (ADR-0010).
       # Keycloak (start-dev) derives the issuer from the request host, so the BFF authority and the
       # verify token request both use keycloak:8080 to keep the issuer consistent.
@@ -424,10 +411,6 @@ services:
       dockerfile: services/event-subscriber/Dockerfile
     image: register-referentie/event-subscriber:dev
     environment:
-      # OpenTelemetry traces → Tempo (S-16b, ADR-0023).
-      OTEL_EXPORTER_OTLP_ENDPOINT: http://tempo:4317
-      OTEL_EXPORTER_OTLP_PROTOCOL: grpc
-      OTEL_SERVICE_NAME: event-subscriber
       ConnectionStrings__Projection: Host=projection-db;Database=projection;Username=projection;Password=projection
       # The subscriber enriches the projection with each zaak's reference (identificatie) by asking
       # the ACL — the only code allowed to read ZGW (§8.1, #78).
@@ -457,10 +440,6 @@ services:
       dockerfile: services/projection-api/Dockerfile
     image: register-referentie/projection-api:dev
     environment:
-      # OpenTelemetry traces → Tempo (S-16b, ADR-0023).
-      OTEL_EXPORTER_OTLP_ENDPOINT: http://tempo:4317
-      OTEL_EXPORTER_OTLP_PROTOCOL: grpc
-      OTEL_SERVICE_NAME: projection-api
       ConnectionStrings__Projection: Host=projection-db;Database=projection;Username=projection;Password=projection
     ports:
       - "8120:8080"
@@ -544,50 +523,6 @@ services:
         condition: service_started
     networks: [cg]
 
-  # ── Observability backplane (S-16a, ADR-0023) ──────────────────────────────
-  # Grafana-native stack: Tempo ingests OTLP traces (the .NET services export
-  # straight to it — no collector hop, S-16b), Prometheus scrapes service
-  # /metrics (S-16c), and Grafana reads both with datasources auto-provisioned.
-  # Config is baked into small built images (COPY) rather than streamed into
-  # external config volumes like the upstream CG modules — these aren't verbatim
-  # peer images, so a built image is the simpler path that still reaches sibling
-  # containers on the CI runner. Not in WAIT_SVCS: run-observability-check.sh
-  # polls Grafana itself, so no in-image healthcheck tool is needed.
-  tempo:
-    build:
-      context: ./observability/tempo
-    image: register-referentie/tempo:dev
-    command: ["-config.file=/etc/tempo.yaml"]
-    # Cap the backplane's footprint so it can't starve the app stack + the Playwright browser on the
-    # memory-tight CI runner (verify-e2e OOM history, commit d5e5fa2). Generous vs idle (~150M).
-    mem_limit: 400m
-    networks: [cg]
-
-  prometheus:
-    build:
-      context: ./observability/prometheus
-    image: register-referentie/prometheus:dev
-    mem_limit: 400m
-    ports:
-      - "9090:9090"
-    networks: [cg]
-
-  grafana:
-    build:
-      context: ./observability/grafana
-    image: register-referentie/grafana:dev
-    mem_limit: 512m
-    environment:
-      GF_SECURITY_ADMIN_USER: admin
-      GF_SECURITY_ADMIN_PASSWORD: admin
-      GF_AUTH_ANONYMOUS_ENABLED: "true"
-    ports:
-      - "3000:3000"
-    depends_on:
-      - tempo
-      - prometheus
-    networks: [cg]
-
 volumes:
   oz-db:
   nrc-db:

infra/keycloak/realms/digid-realm.json

@@ -38,36 +38,6 @@
       "emailVerified": true,
       "credentials": [{ "type": "password", "value": "test123", "temporary": false }],
       "attributes": { "bsn": ["123456782"] }
-    },
-    {
-      "username": "sanne-burger",
-      "enabled": true,
-      "firstName": "Sanne",
-      "lastName": "Burger",
-      "email": "sanne.burger@example.nl",
-      "emailVerified": true,
-      "credentials": [{ "type": "password", "value": "test123", "temporary": false }],
-      "attributes": { "bsn": ["231477813"] }
-    },
-    {
-      "username": "emma-burger",
-      "enabled": true,
-      "firstName": "Emma",
-      "lastName": "Burger",
-      "email": "emma.burger@example.nl",
-      "emailVerified": true,
-      "credentials": [{ "type": "password", "value": "test123", "temporary": false }],
-      "attributes": { "bsn": ["231477805"] }
-    },
-    {
-      "username": "lars-burger",
-      "enabled": true,
-      "firstName": "Lars",
-      "lastName": "Burger",
-      "email": "lars.burger@example.nl",
-      "emailVerified": true,
-      "credentials": [{ "type": "password", "value": "test123", "temporary": false }],
-      "attributes": { "bsn": ["231477821"] }
     }
   ]
 }

infra/local/register-abonnement.py

@@ -1,78 +0,0 @@
-#!/usr/bin/env python3
-"""Local-stack bootstrap (S-B04, #110, ADR-0020) — register the NRC abonnement.
-
-Runs as the `nrc-subscribe` init container of infra/docker-compose.local.yml. Registers an
-abonnement on the `zaken` kanaal pointing at the event-subscriber's /notifications callback, so
-OpenZaak's notifications (zaak create + status set) reach the projection — without this the openbaar
-(public) register stays empty. This is what infra/verify-notification-driver.py does for CI (minus
-the test zaak it also creates).
-
-The callback host is the event-subscriber's resolved **container IP**, not `event-subscriber`, because
-NRC validates callbackUrl with Django's URLValidator (a single-label host is rejected — same reason the
-zaaktype seed uses OpenZaak's IP). Idempotent + restart-safe: it removes any stale /notifications
-abonnement first, then registers one for the current IP. Stdlib only.
-
-Env: NRC_BASE, SINK_HOST, SINK_PORT, SINK_AUTH, OZ_CLIENT_ID, OZ_SECRET.
-"""
-import base64, hashlib, hmac, json, os, socket, sys, time, urllib.error, urllib.request
-
-NRC = os.environ.get("NRC_BASE", "http://nrc-web:8000").rstrip("/")
-SINK_HOST = os.environ.get("SINK_HOST", "event-subscriber")
-SINK_PORT = os.environ.get("SINK_PORT", "8080")
-SINK_AUTH = os.environ.get("SINK_AUTH", "Bearer big-reference-notifications")
-CID = os.environ.get("OZ_CLIENT_ID", "big-reference-seed")
-SECRET = os.environ.get("OZ_SECRET", "insecure-dev-secret-change-me")
-
-
-def token():
-    b64 = lambda b: base64.urlsafe_b64encode(b).rstrip(b"=")
-    seg = (
-        b64(json.dumps({"alg": "HS256", "typ": "JWT"}, separators=(",", ":")).encode())
-        + b"."
-        + b64(json.dumps(
-            {"iss": CID, "iat": int(time.time()), "client_id": CID,
-             "user_id": "local-seed", "user_representation": "local-seed"},
-            separators=(",", ":")).encode())
-    )
-    return (seg + b"." + b64(hmac.new(SECRET.encode(), seg, hashlib.sha256).digest())).decode()
-
-
-def call(method, url, body=None):
-    data = json.dumps(body).encode() if body is not None else None
-    req = urllib.request.Request(url, data=data, method=method, headers={
-        "Authorization": "Bearer " + token(),
-        "Content-Type": "application/json", "Accept": "application/json"})
-    try:
-        with urllib.request.urlopen(req, timeout=30) as r:
-            raw = r.read()
-            return r.status, (json.loads(raw) if raw else None)
-    except urllib.error.HTTPError as e:
-        raw = e.read()
-        return e.code, (json.loads(raw) if raw else None)
-
-
-def main():
-    ip = socket.gethostbyname(SINK_HOST)
-    callback = f"http://{ip}:{SINK_PORT}/notifications"
-
-    # Restart-safe: drop any prior /notifications abonnement (its IP may be stale) before creating a
-    # fresh one for the current event-subscriber IP.
-    status, body = call("GET", f"{NRC}/api/v1/abonnement")
-    for ab in (body or []) if status == 200 else []:
-        if str(ab.get("callbackUrl", "")).endswith("/notifications"):
-            if ab.get("callbackUrl") == callback:
-                print(f"abonnement already current: {ab['url']}")
-                return
-            call("DELETE", ab["url"])
-            print(f"removed stale abonnement {ab['url']}")
-
-    status, ab = call("POST", f"{NRC}/api/v1/abonnement", {
-        "callbackUrl": callback, "auth": SINK_AUTH,
-        "kanalen": [{"naam": "zaken", "filters": {}}]})
-    if status != 201:
-        sys.exit(f"create abonnement -> {status}: {json.dumps(ab)}")
-    print(f"abonnement registered: {ab['url']} -> {callback}")
-
-
-if __name__ == "__main__":
-    main()

infra/local/seed-zaaktype.sh

@@ -1,33 +0,0 @@
-#!/bin/sh
-# Local-stack bootstrap (S-B04, #110, ADR-0020) — the "seed zaaktype + wire the ACL" step.
-#
-# Runs as the `local-seed` init container of infra/docker-compose.local.yml. It seeds + publishes
-# the BIG zaaktype (and the Diploma informatieobjecttype) into OpenZaak, then writes the resulting
-# **server-assigned** URLs into /out/acl.env, which the ACL entrypoint sources before starting. This
-# is the local-stack equivalent of what infra/run-domain-check.sh does for CI: the zaaktype UUID is
-# assigned by OpenZaak at creation, so it can't be a static value in the compose file.
-#
-# Why the container IP and not the `openzaak` service name: OpenZaak validates URL query params
-# (e.g. ?catalogus=) with Django's URLValidator, which rejects a single-label host like `openzaak`.
-# Seeding against the resolved IP keeps the seeded URLs valid AND host-consistent with the ACL, which
-# we point at the same IP below. See docs/runbooks/gitea-actions-gotchas.md and ADR-0020.
-set -eu
-
-oz_ip="$(python3 -c "import socket;print(socket.gethostbyname('openzaak'))")"
-OZ_BASE="http://${oz_ip}:8000"
-export OZ_BASE OZ_PUBLISH=1
-
-echo ">> seeding + publishing the BIG zaaktype at ${OZ_BASE} (idempotent)"
-out="$(python3 /work/seed_catalogus.py)"
-echo "$out"
-
-# Sanity-check that the zaaktype was actually published (the ACL discovers it by identificatie, S-27).
-printf '%s\n' "$out" | grep -q '^ZAAKTYPE_URL ' || { echo "ERROR: seed did not publish the zaaktype" >&2; exit 1; }
-
-# The ACL resolves the zaaktype/informatieobjecttype URLs itself (S-27, ADR-0021); the only value it
-# still needs injected is the OpenZaak base URL at a URL-valid host (the container IP), because OpenZaak
-# rejects a single-label host on zaak-create. The ACL entrypoint sources this.
-cat > /out/acl.env <<EOF
-Acl__OpenZaak__BaseUrl=${OZ_BASE}/
-EOF
-echo ">> wrote /out/acl.env (base=${OZ_BASE}/)"

infra/metrics-check.py

@@ -1,75 +0,0 @@
-#!/usr/bin/env python3
-"""S-16c (#124): prove the golden-signal metrics pipeline works end to end.
-
-Generate anonymous BFF traffic (GET /openbaar/register — no auth, no OpenZaak egress),
-then query Prometheus and assert (1) every .NET service's scrape target is UP, and (2)
-the http.server.request.duration histogram is actually being scraped — i.e. the services
-expose /metrics AND Prometheus collects it, which is exactly what the golden-signal
-dashboard reads.
-
-Stdlib only (urllib/json) so it runs in a bare python:3-slim container in-network.
-"""
-import json
-import os
-import sys
-import time
-import urllib.error
-import urllib.parse
-import urllib.request
-
-BFF = os.environ["BFF"]          # http://<bff-ip>:8080
-PROM = os.environ["PROMETHEUS"]  # http://<prometheus-ip>:9090
-TIMEOUT = int(os.environ.get("METRICS_TIMEOUT", "90"))
-SERVICES = {"acl", "domain", "bff", "event-subscriber", "projection-api"}
-
-
-def _get(url):
-    with urllib.request.urlopen(url, timeout=10) as r:
-        return r.read()
-
-
-def generate_traffic():
-    for _ in range(3):
-        try:
-            _get(f"{BFF}/openbaar/register")
-        except urllib.error.HTTPError:
-            pass  # a non-2xx still records an http.server metric
-
-
-def query(promql):
-    q = urllib.parse.quote(promql)
-    try:
-        data = json.loads(_get(f"{PROM}/api/v1/query?query={q}"))
-    except Exception:
-        return []
-    return data.get("data", {}).get("result", [])
-
-
-def jobs_up():
-    return {r["metric"].get("job") for r in query("up == 1")}
-
-
-def jobs_with_request_metric():
-    return {r["metric"].get("job")
-            for r in query("http_server_request_duration_seconds_count")}
-
-
-def main():
-    deadline = time.time() + TIMEOUT
-    while time.time() < deadline:
-        generate_traffic()
-        up = jobs_up()
-        scraped = jobs_with_request_metric()
-        if SERVICES.issubset(up) and SERVICES.issubset(scraped):
-            print(f"OK — targets up: {sorted(up & SERVICES)}; "
-                  f"request metric scraped from: {sorted(scraped & SERVICES)}")
-            return 0
-        time.sleep(3)
-    print(f"FAIL — up: {sorted(jobs_up() & SERVICES)}; "
-          f"request metric from: {sorted(jobs_with_request_metric() & SERVICES)}; "
-          f"expected all of {sorted(SERVICES)}", file=sys.stderr)
-    return 1
-
-
-if __name__ == "__main__":
-    sys.exit(main())

infra/observability/grafana/Dockerfile

@@ -1,4 +0,0 @@
-# Grafana with datasources + the golden-signals dashboard baked in via provisioning
-# (S-16a/S-16c, ADR-0023). Everything under provisioning/ is copied in below.
-FROM grafana/grafana:11.3.0
-COPY provisioning/ /etc/grafana/provisioning/

infra/observability/grafana/provisioning/dashboards/dashboards.yaml

@@ -1,13 +0,0 @@
-# Dashboard provider (S-16c, ADR-0023): Grafana loads every *.json in this folder as a
-# read-only, code-owned dashboard. The golden-signals board is versioned here, not
-# clicked together in the UI.
-apiVersion: 1
-
-providers:
-  - name: register-referentie
-    type: file
-    disableDeletion: true
-    allowUiUpdates: false
-    options:
-      path: /etc/grafana/provisioning/dashboards
-      foldersFromFilesStructure: false

infra/observability/grafana/provisioning/dashboards/golden-signals.json

@@ -1,87 +0,0 @@
-{
-  "uid": "golden-signals",
-  "title": "Request path — golden signals",
-  "tags": ["s-16c", "golden-signals"],
-  "timezone": "browser",
-  "schemaVersion": 39,
-  "version": 1,
-  "editable": true,
-  "refresh": "10s",
-  "time": { "from": "now-15m", "to": "now" },
-  "templating": {
-    "list": [
-      {
-        "name": "job",
-        "type": "query",
-        "datasource": { "type": "prometheus", "uid": "prometheus" },
-        "query": "label_values(http_server_request_duration_seconds_count, job)",
-        "includeAll": true,
-        "multi": true,
-        "current": { "text": "All", "value": "$__all" },
-        "refresh": 2
-      }
-    ]
-  },
-  "panels": [
-    {
-      "id": 1,
-      "title": "Traffic — requests/sec",
-      "type": "timeseries",
-      "datasource": { "type": "prometheus", "uid": "prometheus" },
-      "gridPos": { "h": 8, "w": 12, "x": 0, "y": 0 },
-      "fieldConfig": { "defaults": { "unit": "reqps", "custom": { "drawStyle": "line", "fillOpacity": 10 } }, "overrides": [] },
-      "targets": [
-        {
-          "refId": "A",
-          "expr": "sum by (job) (rate(http_server_request_duration_seconds_count{job=~\"$job\"}[$__rate_interval]))",
-          "legendFormat": "{{job}}"
-        }
-      ]
-    },
-    {
-      "id": 2,
-      "title": "Errors — 5xx responses/sec",
-      "type": "timeseries",
-      "datasource": { "type": "prometheus", "uid": "prometheus" },
-      "gridPos": { "h": 8, "w": 12, "x": 12, "y": 0 },
-      "fieldConfig": { "defaults": { "unit": "reqps", "custom": { "drawStyle": "line", "fillOpacity": 10 }, "color": { "mode": "fixed", "fixedColor": "red" } }, "overrides": [] },
-      "targets": [
-        {
-          "refId": "A",
-          "expr": "sum by (job) (rate(http_server_request_duration_seconds_count{job=~\"$job\",http_response_status_code=~\"5..\"}[$__rate_interval]))",
-          "legendFormat": "{{job}}"
-        }
-      ]
-    },
-    {
-      "id": 3,
-      "title": "Latency — p95 request duration",
-      "type": "timeseries",
-      "datasource": { "type": "prometheus", "uid": "prometheus" },
-      "gridPos": { "h": 8, "w": 12, "x": 0, "y": 8 },
-      "fieldConfig": { "defaults": { "unit": "s", "custom": { "drawStyle": "line", "fillOpacity": 10 } }, "overrides": [] },
-      "targets": [
-        {
-          "refId": "A",
-          "expr": "histogram_quantile(0.95, sum by (job, le) (rate(http_server_request_duration_seconds_bucket{job=~\"$job\"}[$__rate_interval])))",
-          "legendFormat": "{{job}} p95"
-        }
-      ]
-    },
-    {
-      "id": 4,
-      "title": "Saturation — CPU cores in use",
-      "type": "timeseries",
-      "datasource": { "type": "prometheus", "uid": "prometheus" },
-      "gridPos": { "h": 8, "w": 12, "x": 12, "y": 8 },
-      "fieldConfig": { "defaults": { "unit": "none", "custom": { "drawStyle": "line", "fillOpacity": 10 } }, "overrides": [] },
-      "targets": [
-        {
-          "refId": "A",
-          "expr": "sum by (job) (rate(dotnet_process_cpu_time_seconds_total{job=~\"$job\"}[$__rate_interval]))",
-          "legendFormat": "{{job}}"
-        }
-      ]
-    }
-  ]
-}

infra/observability/grafana/provisioning/datasources/datasources.yaml

@@ -1,17 +0,0 @@
-# Auto-provisioned datasources (S-16a, ADR-0023). Fixed uids so dashboards (S-16c)
-# and the verify-observability check can reference them by a stable id.
-apiVersion: 1
-
-datasources:
-  - name: Prometheus
-    uid: prometheus
-    type: prometheus
-    access: proxy
-    url: http://prometheus:9090
-    isDefault: true
-
-  - name: Tempo
-    uid: tempo
-    type: tempo
-    access: proxy
-    url: http://tempo:3200

infra/observability/prometheus/Dockerfile

@@ -1,2 +0,0 @@
-FROM prom/prometheus:v2.55.1
-COPY prometheus.yml /etc/prometheus/prometheus.yml

infra/observability/prometheus/prometheus.yml

@@ -1,27 +0,0 @@
-# Prometheus scrape config (S-16c, ADR-0023). Each .NET service exposes OTel metrics
-# at /metrics (Prometheus text format); one scrape job per service, so the service is
-# identified by the `job` label in the golden-signal dashboard. Targets are reached by
-# compose service name on the shared `cg` network (internal port 8080).
-global:
-  scrape_interval: 15s
-
-scrape_configs:
-  - job_name: prometheus
-    static_configs:
-      - targets: ['localhost:9090']
-
-  - job_name: acl
-    static_configs:
-      - targets: ['acl:8080']
-  - job_name: domain
-    static_configs:
-      - targets: ['domain:8080']
-  - job_name: bff
-    static_configs:
-      - targets: ['bff:8080']
-  - job_name: event-subscriber
-    static_configs:
-      - targets: ['event-subscriber:8080']
-  - job_name: projection-api
-    static_configs:
-      - targets: ['projection-api:8080']

infra/observability/tempo/Dockerfile

@@ -1,4 +0,0 @@
-# Tempo with our config baked in — so it reaches sibling containers on the CI
-# runner without the external-config-volume dance the upstream CG images need.
-FROM grafana/tempo:2.6.1
-COPY tempo.yaml /etc/tempo.yaml

infra/observability/tempo/tempo.yaml

@@ -1,27 +0,0 @@
-# Grafana Tempo — single-binary, all-in-one, local storage (S-16a, ADR-0023).
-# Ingests OTLP directly (services export straight to Tempo; no collector hop).
-# Storage is ephemeral container fs — this is a local/CI demo backplane, not a
-# retention target. ponytail: local backend, swap for object storage if traces
-# must outlive the stack.
-server:
-  http_listen_port: 3200
-
-distributor:
-  receivers:
-    otlp:
-      protocols:
-        grpc:
-          endpoint: 0.0.0.0:4317
-        http:
-          endpoint: 0.0.0.0:4318
-
-ingester:
-  max_block_duration: 5m
-
-storage:
-  trace:
-    backend: local
-    local:
-      path: /var/tempo/blocks
-    wal:
-      path: /var/tempo/wal

infra/run-domain-check.sh

@@ -30,18 +30,21 @@ oz_ip="$(ip "$oz")"; dom_ip="$(ip "$dom")"
 oz_base="http://$oz_ip:8000"
 echo ">> openzaak=$oz_ip domain=$dom_ip network=$net"
 
-echo ">> seeding + publishing a BIG zaaktype (idempotent)"
+echo ">> seeding a published BIG zaaktype (idempotent) and capturing its URL"
 sid="$(docker create --network "$net" -e "OZ_BASE=$oz_base" -e OZ_PUBLISH=1 python:3-slim python /seed.py)"
 docker cp "$here/openzaak/seed_catalogus.py" "$sid:/seed.py" >/dev/null
 seed_out="$(docker start -a "$sid")"
+zt_url="$(printf '%s\n' "$seed_out" | sed -n 's/^ZAAKTYPE_URL //p' | head -1)"
+iot_url="$(printf '%s\n' "$seed_out" | sed -n 's/^INFORMATIEOBJECTTYPE_URL //p' | head -1)"
 docker rm -f "$sid" >/dev/null
-printf '%s\n' "$seed_out" | grep -q '^ZAAKTYPE_URL ' || { echo "ERROR: seed did not publish the zaaktype" >&2; exit 1; }
+[ -n "$zt_url" ] || { echo "ERROR: seed did not report a ZAAKTYPE_URL" >&2; exit 1; }
+[ -n "$iot_url" ] || { echo "ERROR: seed did not report an INFORMATIEOBJECTTYPE_URL" >&2; exit 1; }
+echo ">> zaaktype: $zt_url"
+echo ">> informatieobjecttype: $iot_url"
 
-# The ACL resolves the zaaktype + informatieobjecttype by identificatie/omschrijving (S-27, ADR-0021),
-# so there is no URL to inject — only the OpenZaak base URL, pointed at the same host's container IP
-# (OpenZaak rejects a single-label host on zaak-create).
-echo ">> recreating the acl service pointed at OpenZaak's IP (it resolves the zaaktype itself, S-27)"
-ACL_OPENZAAK_BASEURL="$oz_base/" docker compose -f "$compose" up -d acl
+echo ">> recreating the acl service pointed at the seeded zaaktype + informatieobjecttype (host-consistent)"
+ACL_ZAAKTYPE_URL="$zt_url" ACL_INFORMATIEOBJECTTYPE_URL="$iot_url" ACL_OPENZAAK_BASEURL="$oz_base/" \
+  docker compose -f "$compose" up -d acl
 WAIT_TIMEOUT="${WAIT_TIMEOUT:-120}" bash "$here/wait-healthy.sh" acl
 
 echo ">> submitting a registration to the domain"

infra/run-local-flow-check.sh

@@ -1,67 +0,0 @@
-#!/usr/bin/env bash
-#
-# Acceptance check for the local stack (S-B04, #110): a fresh `make local` must complete the whole
-# flow with NO manual seeding. Run against an already-up local stack (infra/docker-compose.local.yml)
-# via the host-published ports. It exercises, and thereby covers, the three bring-up gaps the slice
-# fixes:
-#
-#   1. zaaktype seeded + ACL wired  -> a submitted registration opens a zaak (zaakUrl gets filled).
-#   2. diploma-eligibility DMN deployed -> providing documents completes WachtOpDocumenten, routes
-#      through the DMN, and the case lands on Beoordelen (visible in the behandel werkbak).
-#   3. NRC abonnement registered    -> the zaak shows up in the openbaar (public) register.
-#
-# Before the fix this fails at step 1 (ACL points at a placeholder zaaktype -> OpenZaak 400).
-set -euo pipefail
-
-DOM=${DOM:-http://localhost:8130}     # domain
-BFF=${BFF:-http://localhost:8080}     # bff (openbaar register)
-BSN=${BSN:-123456782}
-# A minimal, valid PDF, base64-encoded (the diploma upload).
-PDF_B64="$(printf '%%PDF-1.4\n1 0 obj<</Type/Catalog>>endobj\ntrailer<</Root 1 0 R>>\n%%%%EOF\n' | base64 | tr -d '\n')"
-
-echo ">> 1. submit a registration (no manual seeding expected)"
-loc="$(curl -fsS -D - -o /dev/null -X POST "$DOM/registrations" \
-  -H 'Content-Type: application/json' -d "{\"bsn\":\"$BSN\"}" \
-  | sed -n 's/\r$//; s/^[Ll]ocation: //p' | head -1)"
-[ -n "$loc" ] || { echo "FAIL: POST /registrations returned no Location" >&2; exit 1; }
-id="${loc##*/}"
-echo "   accepted: $id"
-
-echo ">> 2. poll until the ACL opens the zaak (proves the zaaktype is seeded + wired)"
-zaak=""
-for _ in $(seq 1 30); do
-  zaak="$(curl -fsS "$DOM$loc" | python3 -c 'import sys,json;print(json.load(sys.stdin).get("zaakUrl") or "")' 2>/dev/null || true)"
-  [ -n "$zaak" ] && break
-  sleep 3
-done
-[ -n "$zaak" ] || { echo "FAIL: zaak never opened — ACL zaaktype not wired (gap 1)" >&2; exit 1; }
-echo "   zaak opened: $zaak"
-
-echo ">> 3. provide documents (proves the diploma-eligibility DMN is deployed)"
-code="$(curl -s -o /dev/null -w '%{http_code}' -X POST "$DOM/registrations/$id/documents" \
-  -H 'Content-Type: application/json' \
-  -d "{\"bsn\":\"$BSN\",\"contentBase64\":\"$PDF_B64\",\"fileName\":\"diploma.pdf\",\"contentType\":\"application/pdf\"}")"
-[ "$code" = "204" ] || { echo "FAIL: provide documents -> $code (DMN missing routes WachtOpDocumenten to a 404 — gap 2)" >&2; exit 1; }
-echo "   documents accepted (204)"
-
-echo ">> 4. poll the werkbak until the registration awaits beoordeling (reached Beoordelen)"
-in_werkbak=""
-for _ in $(seq 1 20); do
-  in_werkbak="$(curl -fsS "$DOM/behandel/werkbak" | python3 -c "import sys,json;print(any(r.get('registrationId')=='$id' for r in json.load(sys.stdin)))" 2>/dev/null || true)"
-  [ "$in_werkbak" = "True" ] && break
-  sleep 3
-done
-[ "$in_werkbak" = "True" ] || { echo "FAIL: registration never reached the werkbak (gap 2)" >&2; exit 1; }
-echo "   in the werkbak"
-
-echo ">> 5. poll the openbaar register until the reference is publicly visible (proves NRC abonnement)"
-public=""
-for _ in $(seq 1 30); do
-  public="$(curl -fsS "$BFF/openbaar/register" | python3 -c "import sys,json;print(any(r.get('reference')=='$id' for r in json.load(sys.stdin)))" 2>/dev/null || true)"
-  [ "$public" = "True" ] && break
-  sleep 3
-done
-[ "$public" = "True" ] || { echo "FAIL: reference never appeared in the openbaar register — NRC abonnement not registered (gap 3)" >&2; exit 1; }
-echo "   visible in the openbaar register"
-
-echo "OK — a fresh local stack completed the flow with no manual seeding (zaaktype + DMN + abonnement)"

infra/run-metrics-check.sh

@@ -1,28 +0,0 @@
-#!/usr/bin/env bash
-#
-# S-16c (#124): assert the golden-signal metrics pipeline works — the .NET services expose
-# /metrics and Prometheus scrapes them — against an ALREADY-RUNNING full stack. Runs the
-# driver in a python:3-slim container on the stack network (services reached by container IP;
-# the runner can't reach published ports — gitea-actions-gotchas.md §5/§6). Does NOT manage
-# the stack lifecycle.
-set -euo pipefail
-
-here="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-
-ip() { docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' "$1"; }
-
-bff="$(docker ps -q --filter 'name=[-_]bff[-_]' | head -1)"
-prom="$(docker ps -q --filter 'name=[-_]prometheus[-_]' | head -1)"
-[ -n "$bff" ] && [ -n "$prom" ] || { echo "ERROR: bff and/or prometheus not running — bring the stack up first" >&2; exit 1; }
-net="$(docker inspect -f '{{range $k,$_ := .NetworkSettings.Networks}}{{$k}}{{"\n"}}{{end}}' "$bff" | head -1)"
-bff_ip="$(ip "$bff")"; prom_ip="$(ip "$prom")"
-echo ">> network=$net bff=$bff_ip prometheus=$prom_ip"
-
-cid="$(docker create --network "$net" \
-  -e "BFF=http://$bff_ip:8080" -e "PROMETHEUS=http://$prom_ip:9090" \
-  -e "METRICS_TIMEOUT=${METRICS_TIMEOUT:-90}" \
-  python:3-slim python /metrics-check.py)"
-docker cp "$here/metrics-check.py" "$cid:/metrics-check.py" >/dev/null
-rc=0; docker start -a "$cid" || rc=$?
-docker rm -f "$cid" >/dev/null
-exit $rc

infra/run-observability-check.sh

@@ -1,45 +0,0 @@
-#!/usr/bin/env bash
-#
-# S-16a (#122): assert the observability backplane is live against an ALREADY-RUNNING
-# stack. Runs curl INSIDE the compose network (like the other verify checks) because
-# the stack's published ports aren't on the CI runner's localhost — the stack is a set
-# of sibling containers on the host daemon. It asks Grafana to reach its provisioned
-# datasources — Prometheus via its health method, Tempo via the datasource proxy (Tempo's
-# Grafana plugin implements no health method) — so it proves the datasources are wired,
-# not merely that the containers started. Polls, so it tolerates a cold Grafana.
-#
-# Does NOT manage the stack lifecycle (the caller owns bring-up + teardown).
-set -euo pipefail
-
-TIMEOUT="${OBS_TIMEOUT:-60}"
-AUTH="${GRAFANA_AUTH:-admin:admin}"
-
-gf="$(docker ps -q --filter 'name=[-_]grafana[-_]' | head -1)"
-[ -n "$gf" ] || { echo "ERROR: no running grafana container — bring the stack up first" >&2; exit 1; }
-net="$(docker inspect -f '{{range $k,$_ := .NetworkSettings.Networks}}{{$k}}{{"\n"}}{{end}}' "$gf" | head -1)"
-gf_ip="$(docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' "$gf")"
-base="http://$gf_ip:3000"
-echo ">> grafana=$gf_ip network=$net"
-
-# Run curl inside a throwaway container on the stack network (reaches services by IP).
-net_curl() { docker run --rm --network "$net" curlimages/curl:latest "$@"; }
-
-# poll <description> <grep -E pattern> <curl args...>
-poll() {
-  local desc="$1" pat="$2"; shift 2
-  local deadline=$(( $(date +%s) + TIMEOUT ))
-  while :; do
-    if net_curl -fsS "$@" 2>/dev/null | grep -Eq "$pat"; then echo "  ✓ $desc"; return 0; fi
-    if [ "$(date +%s)" -ge "$deadline" ]; then echo "  ✗ $desc ($*)" >&2; return 1; fi
-    sleep 3
-  done
-}
-
-echo "Checking observability backplane at $base ..."
-poll "Grafana is healthy" \
-  '"database":[[:space:]]*"ok"' "$base/api/health"
-poll "Prometheus datasource reachable" \
-  '"status":[[:space:]]*"OK"' -u "$AUTH" "$base/api/datasources/uid/prometheus/health"
-poll "Tempo datasource reachable (via Grafana proxy)" \
-  '"version"' -u "$AUTH" "$base/api/datasources/proxy/uid/tempo/api/status/buildinfo"
-echo "Observability backplane OK."

infra/run-tracing-check.sh

@@ -1,27 +0,0 @@
-#!/usr/bin/env bash
-#
-# S-16b (#123): assert one connected distributed trace spans the .NET services in Tempo,
-# against an ALREADY-RUNNING full stack. Runs the driver in a python:3-slim container on the
-# stack network (services reached by container IP; the runner can't reach published ports —
-# gitea-actions-gotchas.md §5/§6). Does NOT manage the stack lifecycle.
-set -euo pipefail
-
-here="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-
-ip() { docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' "$1"; }
-
-bff="$(docker ps -q --filter 'name=[-_]bff[-_]' | head -1)"
-tempo="$(docker ps -q --filter 'name=[-_]tempo[-_]' | head -1)"
-[ -n "$bff" ] && [ -n "$tempo" ] || { echo "ERROR: bff and/or tempo not running — bring the stack up first" >&2; exit 1; }
-net="$(docker inspect -f '{{range $k,$_ := .NetworkSettings.Networks}}{{$k}}{{"\n"}}{{end}}' "$bff" | head -1)"
-bff_ip="$(ip "$bff")"; tempo_ip="$(ip "$tempo")"
-echo ">> network=$net bff=$bff_ip tempo=$tempo_ip"
-
-cid="$(docker create --network "$net" \
-  -e "BFF=http://$bff_ip:8080" -e "TEMPO=http://$tempo_ip:3200" \
-  -e "TRACING_TIMEOUT=${TRACING_TIMEOUT:-90}" \
-  python:3-slim python /tracing-check.py)"
-docker cp "$here/tracing-check.py" "$cid:/tracing-check.py" >/dev/null
-rc=0; docker start -a "$cid" || rc=$?
-docker rm -f "$cid" >/dev/null
-exit $rc

infra/tracing-check.py

@@ -1,81 +0,0 @@
-#!/usr/bin/env python3
-"""S-16b (#123): prove distributed tracing works end to end.
-
-Generate anonymous BFF traffic (GET /openbaar/register, which the BFF serves by
-calling projection-api — no auth, no OpenZaak egress), then query Tempo and assert
-that ONE trace contains spans from both `bff` and `projection-api`. That proves the
-services export OTLP to Tempo AND that the W3C traceparent propagates across the
-HttpClient hop, stitching the request into a single connected trace.
-
-Stdlib only (urllib/json) so it runs in a bare python:3-slim container in-network.
-"""
-import json
-import os
-import sys
-import time
-import urllib.error
-import urllib.parse
-import urllib.request
-
-BFF = os.environ["BFF"]        # http://<bff-ip>:8080
-TEMPO = os.environ["TEMPO"]    # http://<tempo-ip>:3200
-TIMEOUT = int(os.environ.get("TRACING_TIMEOUT", "90"))
-WANT = {"bff", "projection-api"}  # the two services that must share one trace
-
-
-def _get(url):
-    with urllib.request.urlopen(url, timeout=10) as r:
-        return r.read()
-
-
-def generate_traffic():
-    # A non-2xx still produces spans; only total unreachability of the BFF is fatal.
-    for _ in range(3):
-        try:
-            _get(f"{BFF}/openbaar/register")
-        except urllib.error.HTTPError:
-            pass
-
-
-def search_trace_ids():
-    q = urllib.parse.quote('{ resource.service.name = "bff" }')
-    try:
-        data = json.loads(_get(f"{TEMPO}/api/search?q={q}&limit=50"))
-    except Exception:
-        return []
-    return [t["traceID"] for t in data.get("traces", [])]
-
-
-def services_in_trace(trace_id):
-    try:
-        data = json.loads(_get(f"{TEMPO}/api/traces/{trace_id}"))
-    except Exception:
-        return set()
-    names = set()
-    for batch in data.get("batches", []):
-        for attr in batch.get("resource", {}).get("attributes", []):
-            if attr.get("key") == "service.name":
-                names.add(attr.get("value", {}).get("stringValue"))
-    return names
-
-
-def main():
-    deadline = time.time() + TIMEOUT
-    generate_traffic()
-    seen = set()
-    while time.time() < deadline:
-        for tid in search_trace_ids():
-            names = services_in_trace(tid)
-            seen |= names
-            if WANT.issubset(names):
-                print(f"OK — trace {tid} spans {sorted(names)}")
-                return 0
-        time.sleep(3)
-        generate_traffic()
-    print(f"FAIL — no single trace spanned {sorted(WANT)}; services seen: {sorted(seen)}",
-          file=sys.stderr)
-    return 1
-
-
-if __name__ == "__main__":
-    sys.exit(main())

libs/api-client/src/lib/generated/bff-api.ts

@@ -24,11 +24,6 @@ import {
   Observable
 } from 'rxjs';
 
-export interface CurrentRegistration {
-  registrationId: string;
-  status: string;
-}
-
 export interface DecideRequest {
   besluit: string;
 }
@@ -205,37 +200,6 @@ export class BffApiV1Service {
     );
   }
 
- getSelfServiceRegistrations<TData = CurrentRegistration | void>( options?: HttpClientBodyOptions): Observable<TData>;
- getSelfServiceRegistrations<TData = CurrentRegistration | void>( options?: HttpClientEventOptions): Observable<HttpEvent<TData>>;
- getSelfServiceRegistrations<TData = CurrentRegistration | void>( options?: HttpClientResponseOptions): Observable<AngularHttpResponse<TData>>;
-  getSelfServiceRegistrations<TData = CurrentRegistration | void>(
-     options?: HttpClientObserveOptions): Observable<TData | HttpEvent<TData> | AngularHttpResponse<TData>> {
-    if (options?.observe === 'events') {
-      return this.http.get<TData>(
-      `/self-service/registrations`,{
-        ...(options as Omit<NonNullable<typeof options>, 'observe'>),
-        observe: 'events',
-      }
-    );
-    }
-
-    if (options?.observe === 'response') {
-      return this.http.get<TData>(
-      `/self-service/registrations`,{
-        ...(options as Omit<NonNullable<typeof options>, 'observe'>),
-        observe: 'response',
-      }
-    );
-    }
-
-    return this.http.get<TData>(
-      `/self-service/registrations`,{
-        ...(options as Omit<NonNullable<typeof options>, 'observe'>),
-        observe: 'body',
-      }
-    );
-  }
-
  postSelfServiceRegistrationsIdWithdraw<TData = void>(id: string, options?: HttpClientBodyOptions): Observable<TData>;
  postSelfServiceRegistrationsIdWithdraw<TData = void>(id: string, options?: HttpClientEventOptions): Observable<HttpEvent<TData>>;
  postSelfServiceRegistrationsIdWithdraw<TData = void>(id: string, options?: HttpClientResponseOptions): Observable<AngularHttpResponse<TData>>;

services/acl/Acl.Api/Acl.Api.csproj

@@ -5,14 +5,6 @@
     <ProjectReference Include="..\Acl.Infrastructure\Acl.Infrastructure.csproj" />
   </ItemGroup>
 
-  <ItemGroup>
-    <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.17.0" />
-    <PackageReference Include="OpenTelemetry.Exporter.Prometheus.AspNetCore" Version="1.17.0-beta.1" />
-    <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.17.0" />
-    <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.17.0" />
-    <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.17.0" />
-  </ItemGroup>
-
   <PropertyGroup>
     <TargetFramework>net10.0</TargetFramework>
     <Nullable>enable</Nullable>

services/acl/Acl.Api/Program.cs

@@ -1,31 +1,8 @@
 using Acl.Application;
 using Acl.Infrastructure;
-using OpenTelemetry.Metrics;
-using OpenTelemetry.Resources;
-using OpenTelemetry.Trace;
 
 var builder = WebApplication.CreateBuilder(args);
 
-// OpenTelemetry tracing (S-16b, ADR-0023): auto-instrument incoming ASP.NET Core requests and
-// outgoing HttpClient calls (the ACL → OpenZaak hop), exported over OTLP to Tempo. Service name +
-// OTLP endpoint come from OTEL_* env (compose); the exporter no-ops when Tempo is unreachable.
-builder.Services.AddOpenTelemetry()
-    .ConfigureResource(r => r.AddService(
-        builder.Configuration["OTEL_SERVICE_NAME"] ?? builder.Environment.ApplicationName))
-    .WithTracing(tracing => tracing
-        .AddAspNetCoreInstrumentation(o => o.Filter = ctx => ctx.Request.Path != "/health")
-        .AddHttpClientInstrumentation()
-        .AddOtlpExporter())
-    // OpenTelemetry metrics (S-16c, ADR-0023): golden signals for the request path —
-    // http.server.request.duration (traffic/errors/latency) + http.client.* for downstream hops, plus
-    // the built-in System.Runtime meter for saturation (GC, CPU, thread pool). Prometheus scrapes these
-    // from /metrics (mapped below); metrics aren't pushed over OTLP, so no collector hop (ADR-0023).
-    .WithMetrics(metrics => metrics
-        .AddAspNetCoreInstrumentation()
-        .AddHttpClientInstrumentation()
-        .AddMeter("System.Runtime")
-        .AddPrometheusExporter());
-
 builder.Services.AddSingleton<IClock, SystemClock>();
 builder.Services.AddSingleton(sp => sp.GetRequiredService<IConfiguration>()
     .GetSection("Acl:Defaults").Get<AclDefaults>()
@@ -34,17 +11,12 @@ builder.Services.AddSingleton(sp => sp.GetRequiredService<IConfiguration>()
     .GetSection("Acl:OpenZaak").Get<OpenZaakOptions>()
     ?? throw new InvalidOperationException("Missing configuration section 'Acl:OpenZaak'"));
 builder.Services.AddHttpClient<IZaakGateway, OpenZaakGateway>();
-// Singleton so the resolved zaaktype/informatieobjecttype URLs are cached across requests (S-27).
-builder.Services.AddSingleton<IZaaktypeCatalog, CachedZaaktypeCatalog>();
 builder.Services.AddScoped<AclService>();
 
 var app = builder.Build();
 
 app.MapGet("/health", () => "Healthy");
 
-// Prometheus scrape endpoint (S-16c): exposes the OTel metrics above in Prometheus text format.
-app.MapPrometheusScrapingEndpoint();
-
 // The ACL's single operation, exposed as a service endpoint.
 app.MapPost("/zaken", async (OpenZaakRequest body, AclService acl, CancellationToken ct) =>
 {

services/acl/Acl.Application/AclDefaults.cs

@@ -6,12 +6,9 @@ public sealed class AclDefaults
     public required string Bronorganisatie { get; init; }
     public required string VerantwoordelijkeOrganisatie { get; init; }
     public required string Vertrouwelijkheidaanduiding { get; init; }
+    public required Uri ZaaktypeUrl { get; init; }
 
-    /// <summary>The BIG zaaktype's stable business key. The ACL resolves the (server-assigned) zaaktype
-    /// URL from this via the Catalogi API instead of being handed a pinned URL (S-27, ADR-0021).</summary>
-    public required string ZaaktypeIdentificatie { get; init; }
-
-    /// <summary>The omschrijving of the informatieobjecttype an uploaded diploma is filed under (S-10b);
-    /// resolved to a URL by the Catalogi API, like <see cref="ZaaktypeIdentificatie"/>.</summary>
-    public required string InformatieobjecttypeOmschrijving { get; init; }
+    /// <summary>The informatieobjecttype an uploaded diploma is filed under (S-10b). Seeded in the
+    /// catalogus and injected like <see cref="ZaaktypeUrl"/>.</summary>
+    public required Uri InformatieobjecttypeUrl { get; init; }
 }

services/acl/Acl.Application/AclService.cs

@@ -2,9 +2,9 @@ namespace Acl.Application;
 
 /// <summary>The ACL's single operation: open a zaak from a domain payload,
 /// default-filling the ZGW-mandatory fields (ADR-0003).</summary>
-public sealed class AclService(IZaakGateway gateway, AclDefaults defaults, IZaaktypeCatalog catalog, IClock clock)
+public sealed class AclService(IZaakGateway gateway, AclDefaults defaults, IClock clock)
 {
-    public async Task<Uri> OpenZaakAsync(DomainRegistration registration, CancellationToken ct = default)
+    public Task<Uri> OpenZaakAsync(DomainRegistration registration, CancellationToken ct = default)
     {
         ArgumentNullException.ThrowIfNull(registration);
 
@@ -12,34 +12,34 @@ public sealed class AclService(IZaakGateway gateway, AclDefaults defaults, IZaak
             defaults.Bronorganisatie,
             defaults.VerantwoordelijkeOrganisatie,
             defaults.Vertrouwelijkheidaanduiding,
-            await catalog.GetZaaktypeUrlAsync(ct),
+            defaults.ZaaktypeUrl,
             clock.Today,
             registration.Reference);
 
-        return await gateway.OpenZaakAsync(request, ct);
+        return gateway.OpenZaakAsync(request, ct);
     }
 
     /// <summary>
-    /// Approve a zaak: set it to the eindstatus of the BIG zaaktype (resolved by identificatie, S-27).
-    /// The domain hands over only the zaak URL; the ACL owns which statustype means "approved" (§8.1).
+    /// Approve a zaak: set it to the eindstatus of the configured BIG zaaktype (ADR-0003 default). The
+    /// domain hands over only the zaak URL; the ACL owns which statustype means "approved" (§8.1).
     /// </summary>
-    public async Task ApproveZaakAsync(Uri zaakUrl, CancellationToken ct = default)
+    public Task ApproveZaakAsync(Uri zaakUrl, CancellationToken ct = default)
     {
         ArgumentNullException.ThrowIfNull(zaakUrl);
 
-        await gateway.SetZaakToEindstatusAsync(zaakUrl, await catalog.GetZaaktypeUrlAsync(ct), clock.Today, ct);
+        return gateway.SetZaakToEindstatusAsync(zaakUrl, defaults.ZaaktypeUrl, clock.Today, ct);
     }
 
     /// <summary>
-    /// Cancel a zaak on document-timeout expiry (S-10c): set it to the BIG zaaktype's cancellation
-    /// statustype + resultaat. The domain hands over only the zaak URL; the ACL owns which
+    /// Cancel a zaak on document-timeout expiry (S-10c): set it to the configured BIG zaaktype's
+    /// cancellation statustype + resultaat. The domain hands over only the zaak URL; the ACL owns which
     /// statustype/resultaat means "cancelled" (§8.1).
     /// </summary>
-    public async Task CancelZaakAsync(Uri zaakUrl, CancellationToken ct = default)
+    public Task CancelZaakAsync(Uri zaakUrl, CancellationToken ct = default)
     {
         ArgumentNullException.ThrowIfNull(zaakUrl);
 
-        await gateway.SetZaakToCancellationStatusAsync(zaakUrl, await catalog.GetZaaktypeUrlAsync(ct), clock.Today, ct);
+        return gateway.SetZaakToCancellationStatusAsync(zaakUrl, defaults.ZaaktypeUrl, clock.Today, ct);
     }
 
     /// <summary>The zaak's reference (its ZGW identificatie), for the read projection (#78).</summary>
@@ -56,7 +56,7 @@ public sealed class AclService(IZaakGateway gateway, AclDefaults defaults, IZaak
     /// and hand the file to the gateway, which creates the informatieobject and relates it to the zaak.
     /// The domain supplies only the zaak, the bytes, and the file's name/type (§8.1).
     /// </summary>
-    public async Task<Uri> StoreDiplomaAsync(Uri zaakUrl, byte[] content, string fileName, string contentType, CancellationToken ct = default)
+    public Task<Uri> StoreDiplomaAsync(Uri zaakUrl, byte[] content, string fileName, string contentType, CancellationToken ct = default)
     {
         ArgumentNullException.ThrowIfNull(zaakUrl);
         ArgumentNullException.ThrowIfNull(content);
@@ -65,7 +65,7 @@ public sealed class AclService(IZaakGateway gateway, AclDefaults defaults, IZaak
 
         var request = new DocumentRequest(
             defaults.Bronorganisatie,
-            await catalog.GetInformatieobjecttypeUrlAsync(ct),
+            defaults.InformatieobjecttypeUrl,
             defaults.Vertrouwelijkheidaanduiding,
             zaakUrl,
             clock.Today,
@@ -76,6 +76,6 @@ public sealed class AclService(IZaakGateway gateway, AclDefaults defaults, IZaak
             Formaat: contentType,
             Inhoud: content);
 
-        return await gateway.StoreDocumentAsync(request, ct);
+        return gateway.StoreDocumentAsync(request, ct);
     }
 }

services/acl/Acl.Application/CachedZaaktypeCatalog.cs

@@ -1,46 +0,0 @@
-namespace Acl.Application;
-
-/// <summary>Resolves the zaaktype + diploma-informatieobjecttype URLs from the Catalogi API on first
-/// use and caches them for the process lifetime (S-27, ADR-0021). Lazy (not at startup) so the ACL
-/// never crash-loops when it boots before the catalogus is seeded/published; a <em>failed</em>
-/// resolution is not cached, so it is retried on the next call (e.g. once the zaaktype is published).
-/// A process restart re-resolves.</summary>
-public sealed class CachedZaaktypeCatalog(IZaakGateway gateway, AclDefaults defaults) : IZaaktypeCatalog
-{
-    private readonly SemaphoreSlim gate = new(1, 1);
-    private Uri? zaaktype;
-    private Uri? informatieobjecttype;
-
-    public Task<Uri> GetZaaktypeUrlAsync(CancellationToken ct = default) =>
-        ResolveOnceAsync(
-            () => zaaktype, value => zaaktype = value,
-            () => gateway.ResolveZaaktypeUrlAsync(defaults.ZaaktypeIdentificatie, ct), ct);
-
-    public Task<Uri> GetInformatieobjecttypeUrlAsync(CancellationToken ct = default) =>
-        ResolveOnceAsync(
-            () => informatieobjecttype, value => informatieobjecttype = value,
-            () => gateway.ResolveInformatieobjecttypeUrlAsync(defaults.InformatieobjecttypeOmschrijving, ct), ct);
-
-    // Double-checked, single-flight resolution: return the cache if set; otherwise resolve under the
-    // gate and cache only on success (a throw leaves the cache empty so the next call retries).
-    private async Task<Uri> ResolveOnceAsync(Func<Uri?> read, Action<Uri> store, Func<Task<Uri>> resolve, CancellationToken ct)
-    {
-        if (read() is { } cached)
-            return cached;
-
-        await gate.WaitAsync(ct);
-        try
-        {
-            if (read() is { } existing)
-                return existing;
-
-            var resolved = await resolve();
-            store(resolved);
-            return resolved;
-        }
-        finally
-        {
-            gate.Release();
-        }
-    }
-}

services/acl/Acl.Application/IZaakGateway.cs

@@ -32,12 +32,4 @@ public interface IZaakGateway
     /// the created informatieobject.
     /// </summary>
     Task<Uri> StoreDocumentAsync(DocumentRequest request, CancellationToken ct = default);
-
-    /// <summary>Resolve the URL of the published zaaktype with the given <paramref name="identificatie"/>
-    /// from the Catalogi API (S-27). Throws if no published zaaktype matches.</summary>
-    Task<Uri> ResolveZaaktypeUrlAsync(string identificatie, CancellationToken ct = default);
-
-    /// <summary>Resolve the URL of the published informatieobjecttype with the given
-    /// <paramref name="omschrijving"/> from the Catalogi API (S-27). Throws if none matches.</summary>
-    Task<Uri> ResolveInformatieobjecttypeUrlAsync(string omschrijving, CancellationToken ct = default);
 }

services/acl/Acl.Application/IZaaktypeCatalog.cs

@@ -1,12 +0,0 @@
-namespace Acl.Application;
-
-/// <summary>Supplies the ACL's zaaktype + diploma-informatieobjecttype URLs, resolved from OpenZaak's
-/// Catalogi API by their stable business keys (<see cref="AclDefaults.ZaaktypeIdentificatie"/> /
-/// <see cref="AclDefaults.InformatieobjecttypeOmschrijving"/>) rather than pinned in config (S-27,
-/// ADR-0021). Implementations resolve lazily on first use and cache the result.</summary>
-public interface IZaaktypeCatalog
-{
-    Task<Uri> GetZaaktypeUrlAsync(CancellationToken ct = default);
-
-    Task<Uri> GetInformatieobjecttypeUrlAsync(CancellationToken ct = default);
-}

services/acl/Acl.Infrastructure/OpenZaakGateway.cs

@@ -142,48 +142,6 @@ public sealed class OpenZaakGateway(HttpClient http, OpenZaakOptions options) :
         return created;
     }
 
-    public async Task<Uri> ResolveZaaktypeUrlAsync(string identificatie, CancellationToken ct = default)
-    {
-        ArgumentException.ThrowIfNullOrWhiteSpace(identificatie);
-
-        // The published zaaktype with this identificatie; status=definitief excludes concepts.
-        var page = await GetAsync<ZaaktypePage>(
-            "/catalogi/api/v1/zaaktypen?status=definitief&identificatie=" + Uri.EscapeDataString(identificatie),
-            "zaaktypen", ct);
-        var match = (page.Results ?? []).FirstOrDefault()
-            ?? throw new InvalidOperationException(
-                $"No published zaaktype with identificatie '{identificatie}' found in OpenZaak — is the BIG catalogus seeded and published?");
-        return new Uri(match.Url);
-    }
-
-    public async Task<Uri> ResolveInformatieobjecttypeUrlAsync(string omschrijving, CancellationToken ct = default)
-    {
-        ArgumentException.ThrowIfNullOrWhiteSpace(omschrijving);
-
-        // The informatieobjecttypen collection has no omschrijving filter, so match client-side over the
-        // published ones.
-        var page = await GetAsync<InformatieobjecttypePage>(
-            "/catalogi/api/v1/informatieobjecttypen?status=definitief", "informatieobjecttypen", ct);
-        var match = (page.Results ?? []).FirstOrDefault(i => i.Omschrijving == omschrijving)
-            ?? throw new InvalidOperationException(
-                $"No published informatieobjecttype '{omschrijving}' found in OpenZaak — is the BIG catalogus seeded and published?");
-        return new Uri(match.Url);
-    }
-
-    // GETs an absolute-by-path ZGW resource with auth (no CRS — catalogi is not a geo API).
-    private async Task<T> GetAsync<T>(string pathAndQuery, string label, CancellationToken ct)
-    {
-        using var message = new HttpRequestMessage(HttpMethod.Get, new Uri(options.BaseUrl, pathAndQuery));
-        message.Headers.Authorization =
-            new AuthenticationHeaderValue("Bearer", ZgwToken.Mint(options.ClientId, options.Secret));
-
-        using var response = await http.SendAsync(message, ct);
-        await EnsureSuccessAsync(response, $"Querying {label}", ct);
-
-        return await response.Content.ReadFromJsonAsync<T>(ct)
-            ?? throw new InvalidOperationException($"OpenZaak returned an empty {label} response");
-    }
-
     // POSTs a non-geo ZGW resource (resultaat/status — no CRS headers). Buffers the body so uwsgi gets
     // a Content-Length instead of a chunked body (as with zaak-create).
     private async Task PostAsync(string path, object dto, string action, CancellationToken ct)
@@ -340,18 +298,4 @@ public sealed class OpenZaakGateway(HttpClient http, OpenZaakOptions options) :
     private sealed record ZaakInformatieobjectDto(
         [property: JsonPropertyName("zaak")] string Zaak,
         [property: JsonPropertyName("informatieobject")] string Informatieobject);
-
-    private sealed record ZaaktypePage(
-        [property: JsonPropertyName("results")] IReadOnlyList<ZaaktypeDto>? Results);
-
-    private sealed record ZaaktypeDto(
-        [property: JsonPropertyName("url")] string Url,
-        [property: JsonPropertyName("identificatie")] string? Identificatie);
-
-    private sealed record InformatieobjecttypePage(
-        [property: JsonPropertyName("results")] IReadOnlyList<InformatieobjecttypeDto>? Results);
-
-    private sealed record InformatieobjecttypeDto(
-        [property: JsonPropertyName("url")] string Url,
-        [property: JsonPropertyName("omschrijving")] string? Omschrijving);
 }

services/acl/Acl.IntegrationTests/OpenZaakGatewayIntegrationTests.cs

@@ -161,32 +161,4 @@ public sealed class OpenZaakGatewayIntegrationTests(OpenZaakFixture stack)
         Assert.Contains(relations.EnumerateArray(),
             r => r.GetProperty("zaak").GetString() == zaakUrl.ToString());
     }
-
-    [Fact]
-    public async Task Resolves_the_published_zaaktype_and_diploma_informatieobjecttype_by_business_key()
-    {
-        var expectedZaaktype = await stack.FindPublishedBigZaaktypeAsync();
-        Assert.True(expectedZaaktype is not null,
-            "No published BIG-REGISTRATIE zaaktype found — seed the stack with OZ_PUBLISH=1.");
-        var expectedInformatieobjecttype = await stack.FindPublishedDiplomaInformatieobjecttypeAsync();
-        Assert.True(expectedInformatieobjecttype is not null,
-            "No published Diploma informatieobjecttype found — seed the stack with OZ_PUBLISH=1.");
-
-        var gateway = new OpenZaakGateway(stack.Http, stack.Options);
-
-        // The ACL discovers both URLs from the live Catalogi API by their stable business keys (S-27),
-        // matching what the fixture found independently — no pinned URL needed.
-        Assert.Equal(expectedZaaktype, await gateway.ResolveZaaktypeUrlAsync("BIG-REGISTRATIE"));
-        Assert.Equal(expectedInformatieobjecttype, await gateway.ResolveInformatieobjecttypeUrlAsync("Diploma"));
-    }
-
-    [Fact]
-    public async Task Resolving_an_unknown_zaaktype_identificatie_throws_a_clear_error()
-    {
-        var gateway = new OpenZaakGateway(stack.Http, stack.Options);
-
-        var ex = await Assert.ThrowsAsync<InvalidOperationException>(
-            () => gateway.ResolveZaaktypeUrlAsync("NO-SUCH-ZAAKTYPE"));
-        Assert.Contains("NO-SUCH-ZAAKTYPE", ex.Message);
-    }
 }

services/acl/Acl.Tests/AclServiceTests.cs

@@ -6,12 +6,6 @@ public class AclServiceTests
 {
     private sealed class FakeGateway : IZaakGateway
     {
-        // The URLs the catalogus resolves the configured identificatie/omschrijving to (S-27).
-        public Uri ResolvedZaaktype { get; } = new("http://openzaak/catalogi/api/v1/zaaktypen/big");
-        public Uri ResolvedInformatieobjecttype { get; } = new("http://openzaak/catalogi/api/v1/informatieobjecttypen/dip");
-        public string? ResolvedByIdentificatie;
-        public string? ResolvedByOmschrijving;
-
         public ZaakRequest? Captured;
         public Uri Result { get; } = new("http://openzaak/zaken/api/v1/zaken/abc");
 
@@ -53,18 +47,6 @@ public class AclServiceTests
             StoredDocument = request;
             return Task.FromResult(DocumentResult);
         }
-
-        public Task<Uri> ResolveZaaktypeUrlAsync(string identificatie, CancellationToken ct = default)
-        {
-            ResolvedByIdentificatie = identificatie;
-            return Task.FromResult(ResolvedZaaktype);
-        }
-
-        public Task<Uri> ResolveInformatieobjecttypeUrlAsync(string omschrijving, CancellationToken ct = default)
-        {
-            ResolvedByOmschrijving = omschrijving;
-            return Task.FromResult(ResolvedInformatieobjecttype);
-        }
     }
 
     private static AclDefaults Defaults() => new()
@@ -72,23 +54,28 @@ public class AclServiceTests
         Bronorganisatie = "517439943",
         VerantwoordelijkeOrganisatie = "517439943",
         Vertrouwelijkheidaanduiding = "openbaar",
-        ZaaktypeIdentificatie = "BIG-REGISTRATIE",
-        InformatieobjecttypeOmschrijving = "Diploma",
+        ZaaktypeUrl = new("http://openzaak/catalogi/api/v1/zaaktypen/big"),
+        InformatieobjecttypeUrl = new("http://openzaak/catalogi/api/v1/informatieobjecttypen/dip"),
     };
 
-    private static AclService ServiceWith(FakeGateway gateway, AclDefaults defaults, DateOnly today) =>
-        new(gateway, defaults, new CachedZaaktypeCatalog(gateway, defaults), new FixedClock(today));
-
     private sealed class FixedClock(DateOnly today) : IClock
     {
         public DateOnly Today { get; } = today;
     }
 
     [Fact]
-    public async Task Opening_a_zaak_default_fills_zgw_fields_and_uses_the_resolved_zaaktype()
+    public async Task Opening_a_zaak_default_fills_zgw_fields_and_returns_the_zaak_url()
     {
         var gateway = new FakeGateway();
-        var service = ServiceWith(gateway, Defaults(), new DateOnly(2026, 6, 4));
+        var defaults = new AclDefaults
+        {
+            Bronorganisatie = "517439943",
+            VerantwoordelijkeOrganisatie = "517439943",
+            Vertrouwelijkheidaanduiding = "openbaar",
+            ZaaktypeUrl = new("http://openzaak/catalogi/api/v1/zaaktypen/big"),
+            InformatieobjecttypeUrl = new("http://openzaak/catalogi/api/v1/informatieobjecttypen/dip"),
+        };
+        var service = new AclService(gateway, defaults, new FixedClock(new DateOnly(2026, 6, 4)));
 
         var url = await service.OpenZaakAsync(new DomainRegistration("123456782", "reg-77"));
 
@@ -97,9 +84,7 @@ public class AclServiceTests
         Assert.Equal("517439943", req.Bronorganisatie);
         Assert.Equal("517439943", req.VerantwoordelijkeOrganisatie);
         Assert.Equal("openbaar", req.Vertrouwelijkheidaanduiding);
-        // The zaaktype is resolved from the configured identificatie, not a pinned URL (S-27).
-        Assert.Equal("BIG-REGISTRATIE", gateway.ResolvedByIdentificatie);
-        Assert.Equal(gateway.ResolvedZaaktype, req.Zaaktype);
+        Assert.Equal(defaults.ZaaktypeUrl, req.Zaaktype);
         Assert.Equal(new DateOnly(2026, 6, 4), req.Startdatum);
         // The registration reference becomes the zaak identificatie (#78).
         Assert.Equal("reg-77", req.Identificatie);
@@ -109,24 +94,33 @@ public class AclServiceTests
     public async Task Rejects_a_null_registration_without_calling_the_gateway()
     {
         var gateway = new FakeGateway();
-        var service = ServiceWith(gateway, Defaults(), new DateOnly(2026, 6, 4));
+        var defaults = new AclDefaults
+        {
+            Bronorganisatie = "517439943",
+            VerantwoordelijkeOrganisatie = "517439943",
+            Vertrouwelijkheidaanduiding = "openbaar",
+            ZaaktypeUrl = new("http://openzaak/catalogi/api/v1/zaaktypen/big"),
+            InformatieobjecttypeUrl = new("http://openzaak/catalogi/api/v1/informatieobjecttypen/dip"),
+        };
+        var service = new AclService(gateway, defaults, new FixedClock(new DateOnly(2026, 6, 4)));
 
         await Assert.ThrowsAsync<ArgumentNullException>(() => service.OpenZaakAsync(null!));
         Assert.Null(gateway.Captured);
     }
 
     [Fact]
-    public async Task Approving_a_zaak_sets_it_to_its_resolved_zaaktypes_eindstatus_dated_today()
+    public async Task Approving_a_zaak_sets_it_to_its_zaaktypes_eindstatus_dated_today()
     {
         var gateway = new FakeGateway();
-        var service = ServiceWith(gateway, Defaults(), new DateOnly(2026, 6, 4));
+        var defaults = Defaults();
+        var service = new AclService(gateway, defaults, new FixedClock(new DateOnly(2026, 6, 4)));
         var zaak = new Uri("http://openzaak/zaken/api/v1/zaken/abc");
 
         await service.ApproveZaakAsync(zaak);
 
         Assert.NotNull(gateway.Approved);
         Assert.Equal(zaak, gateway.Approved!.Value.Zaak);
-        Assert.Equal(gateway.ResolvedZaaktype, gateway.Approved.Value.Zaaktype);
+        Assert.Equal(defaults.ZaaktypeUrl, gateway.Approved.Value.Zaaktype);
         Assert.Equal(new DateOnly(2026, 6, 4), gateway.Approved.Value.Datum);
     }
 
@@ -134,7 +128,7 @@ public class AclServiceTests
     public async Task Approving_a_null_zaak_is_rejected_without_touching_the_gateway()
     {
         var gateway = new FakeGateway();
-        var service = ServiceWith(gateway, Defaults(), new DateOnly(2026, 6, 4));
+        var service = new AclService(gateway, Defaults(), new FixedClock(new DateOnly(2026, 6, 4)));
 
         await Assert.ThrowsAsync<ArgumentNullException>(() => service.ApproveZaakAsync(null!));
         Assert.Null(gateway.Approved);
@@ -144,14 +138,15 @@ public class AclServiceTests
     public async Task Cancelling_a_zaak_sets_it_to_the_cancellation_status_dated_today()
     {
         var gateway = new FakeGateway();
-        var service = ServiceWith(gateway, Defaults(), new DateOnly(2026, 6, 4));
+        var defaults = Defaults();
+        var service = new AclService(gateway, defaults, new FixedClock(new DateOnly(2026, 6, 4)));
         var zaak = new Uri("http://openzaak/zaken/api/v1/zaken/abc");
 
         await service.CancelZaakAsync(zaak);
 
         Assert.NotNull(gateway.Cancelled);
         Assert.Equal(zaak, gateway.Cancelled!.Value.Zaak);
-        Assert.Equal(gateway.ResolvedZaaktype, gateway.Cancelled.Value.Zaaktype);
+        Assert.Equal(defaults.ZaaktypeUrl, gateway.Cancelled.Value.Zaaktype);
         Assert.Equal(new DateOnly(2026, 6, 4), gateway.Cancelled.Value.Datum);
         // Cancellation must not touch the approval path.
         Assert.Null(gateway.Approved);
@@ -161,17 +156,18 @@ public class AclServiceTests
     public async Task Cancelling_a_null_zaak_is_rejected_without_touching_the_gateway()
     {
         var gateway = new FakeGateway();
-        var service = ServiceWith(gateway, Defaults(), new DateOnly(2026, 6, 4));
+        var service = new AclService(gateway, Defaults(), new FixedClock(new DateOnly(2026, 6, 4)));
 
         await Assert.ThrowsAsync<ArgumentNullException>(() => service.CancelZaakAsync(null!));
         Assert.Null(gateway.Cancelled);
     }
 
     [Fact]
-    public async Task Storing_a_diploma_default_fills_the_document_fields_and_uses_the_resolved_informatieobjecttype()
+    public async Task Storing_a_diploma_default_fills_the_document_fields_and_returns_its_url()
     {
         var gateway = new FakeGateway();
-        var service = ServiceWith(gateway, Defaults(), new DateOnly(2026, 6, 4));
+        var defaults = Defaults();
+        var service = new AclService(gateway, defaults, new FixedClock(new DateOnly(2026, 6, 4)));
         var zaak = new Uri("http://openzaak/zaken/api/v1/zaken/abc");
 
         var url = await service.StoreDiplomaAsync(zaak, [1, 2, 3], "diploma.pdf", "application/pdf");
@@ -179,9 +175,7 @@ public class AclServiceTests
         Assert.Equal(gateway.DocumentResult, url);
         var req = gateway.StoredDocument!;
         Assert.Equal(zaak, req.Zaak);
-        // The informatieobjecttype is resolved from the configured omschrijving (S-27).
-        Assert.Equal("Diploma", gateway.ResolvedByOmschrijving);
-        Assert.Equal(gateway.ResolvedInformatieobjecttype, req.Informatieobjecttype);
+        Assert.Equal(defaults.InformatieobjecttypeUrl, req.Informatieobjecttype);
         Assert.Equal("517439943", req.Bronorganisatie);
         Assert.Equal("openbaar", req.Vertrouwelijkheidaanduiding);
         Assert.Equal(new DateOnly(2026, 6, 4), req.Creatiedatum);
@@ -194,7 +188,7 @@ public class AclServiceTests
     [Fact]
     public async Task Storing_a_diploma_rejects_null_or_blank_arguments()
     {
-        var service = ServiceWith(new FakeGateway(), Defaults(), new DateOnly(2026, 6, 4));
+        var service = new AclService(new FakeGateway(), Defaults(), new FixedClock(new DateOnly(2026, 6, 4)));
         var zaak = new Uri("http://openzaak/zaken/api/v1/zaken/abc");
 
         await Assert.ThrowsAsync<ArgumentNullException>(() => service.StoreDiplomaAsync(null!, [1], "d.pdf", "application/pdf"));
@@ -207,7 +201,7 @@ public class AclServiceTests
     public async Task Reading_a_zaak_reference_returns_the_zaaks_identificatie()
     {
         var gateway = new FakeGateway();
-        var service = ServiceWith(gateway, Defaults(), new DateOnly(2026, 6, 4));
+        var service = new AclService(gateway, Defaults(), new FixedClock(new DateOnly(2026, 6, 4)));
         var zaak = new Uri("http://openzaak/zaken/api/v1/zaken/abc");
 
         var reference = await service.GetZaakReferenceAsync(zaak);
@@ -220,7 +214,7 @@ public class AclServiceTests
     public async Task Reading_a_null_zaak_reference_is_rejected()
     {
         var gateway = new FakeGateway();
-        var service = ServiceWith(gateway, Defaults(), new DateOnly(2026, 6, 4));
+        var service = new AclService(gateway, Defaults(), new FixedClock(new DateOnly(2026, 6, 4)));
 
         await Assert.ThrowsAsync<ArgumentNullException>(() => service.GetZaakReferenceAsync(null!));
         Assert.Null(gateway.ReadReferenceFor);

services/acl/Acl.Tests/OpenZaakGatewayTests.cs

@@ -675,153 +675,4 @@ public class OpenZaakGatewayTests
 
         await Assert.ThrowsAsync<ArgumentNullException>(() => Gateway(handler).StoreDocumentAsync(null!));
     }
-
-    // ── Catalogi resolution by business key (S-27) ────────────────────────────────────────────────
-
-    [Fact]
-    public async Task Resolves_the_published_zaaktype_url_by_identificatie()
-    {
-        HttpRequestMessage? seen = null;
-        var handler = new StubHandler(req =>
-        {
-            seen = req;
-            return Task.FromResult(new HttpResponseMessage(HttpStatusCode.OK)
-            {
-                Content = JsonContent.Create(new
-                {
-                    results = new[] { new { url = "http://openzaak/catalogi/api/v1/zaaktypen/big", identificatie = "BIG-REGISTRATIE" } },
-                }),
-            });
-        });
-
-        var url = await Gateway(handler).ResolveZaaktypeUrlAsync("BIG-REGISTRATIE");
-
-        Assert.Equal("http://openzaak/catalogi/api/v1/zaaktypen/big", url.ToString());
-        Assert.Equal(HttpMethod.Get, seen!.Method);
-        // Filters to the published zaaktype with that identificatie, and authenticates.
-        Assert.Contains("/catalogi/api/v1/zaaktypen", seen.RequestUri!.ToString());
-        Assert.Contains("status=definitief", seen.RequestUri!.Query);
-        Assert.Contains("identificatie=BIG-REGISTRATIE", seen.RequestUri!.Query);
-        Assert.Equal("Bearer", seen.Headers.Authorization!.Scheme);
-    }
-
-    [Fact]
-    public async Task Resolving_a_zaaktype_throws_a_clear_error_when_none_is_published()
-    {
-        var handler = new StubHandler(_ => Task.FromResult(new HttpResponseMessage(HttpStatusCode.OK)
-        {
-            Content = JsonContent.Create(new { results = Array.Empty<object>() }),
-        }));
-
-        var ex = await Assert.ThrowsAsync<InvalidOperationException>(
-            () => Gateway(handler).ResolveZaaktypeUrlAsync("BIG-REGISTRATIE"));
-        Assert.Contains("BIG-REGISTRATIE", ex.Message);
-    }
-
-    [Fact]
-    public async Task Resolves_the_informatieobjecttype_url_by_omschrijving()
-    {
-        HttpRequestMessage? seen = null;
-        var handler = new StubHandler(req =>
-        {
-            seen = req;
-            return Task.FromResult(new HttpResponseMessage(HttpStatusCode.OK)
-            {
-                Content = JsonContent.Create(new
-                {
-                    results = new[]
-                    {
-                        new { url = "http://openzaak/catalogi/api/v1/informatieobjecttypen/other", omschrijving = "Overig" },
-                        new { url = "http://openzaak/catalogi/api/v1/informatieobjecttypen/dip", omschrijving = "Diploma" },
-                    },
-                }),
-            });
-        });
-
-        var url = await Gateway(handler).ResolveInformatieobjecttypeUrlAsync("Diploma");
-
-        // Queries the published informatieobjecttypen collection, and matches on omschrijving (not position).
-        Assert.Contains("/catalogi/api/v1/informatieobjecttypen", seen!.RequestUri!.ToString());
-        Assert.Contains("status=definitief", seen.RequestUri!.Query);
-        Assert.Equal("http://openzaak/catalogi/api/v1/informatieobjecttypen/dip", url.ToString());
-    }
-
-    [Fact]
-    public async Task Resolving_a_zaaktype_throws_when_the_response_carries_no_results()
-    {
-        // No "results" property → the page's Results is null; the gateway must treat that as "none
-        // found" (not dereference null).
-        var handler = new StubHandler(_ => Task.FromResult(new HttpResponseMessage(HttpStatusCode.OK)
-        {
-            Content = JsonContent.Create(new { count = 0 }),
-        }));
-
-        await Assert.ThrowsAsync<InvalidOperationException>(
-            () => Gateway(handler).ResolveZaaktypeUrlAsync("BIG-REGISTRATIE"));
-    }
-
-    [Fact]
-    public async Task Resolving_an_informatieobjecttype_throws_when_the_response_carries_no_results()
-    {
-        var handler = new StubHandler(_ => Task.FromResult(new HttpResponseMessage(HttpStatusCode.OK)
-        {
-            Content = JsonContent.Create(new { count = 0 }),
-        }));
-
-        await Assert.ThrowsAsync<InvalidOperationException>(
-            () => Gateway(handler).ResolveInformatieobjecttypeUrlAsync("Diploma"));
-    }
-
-    [Fact]
-    public async Task Resolving_a_zaaktype_surfaces_a_non_success_catalogi_response()
-    {
-        var handler = new StubHandler(_ => Task.FromResult(new HttpResponseMessage(HttpStatusCode.InternalServerError)
-        {
-            Content = new StringContent("boom"),
-        }));
-
-        var ex = await Assert.ThrowsAsync<HttpRequestException>(
-            () => Gateway(handler).ResolveZaaktypeUrlAsync("BIG-REGISTRATIE"));
-        // The error names the resource being queried and includes OpenZaak's body.
-        Assert.Contains("zaaktypen", ex.Message);
-        Assert.Contains("boom", ex.Message);
-    }
-
-    [Fact]
-    public async Task Resolving_an_informatieobjecttype_surfaces_a_non_success_catalogi_response()
-    {
-        var handler = new StubHandler(_ => Task.FromResult(new HttpResponseMessage(HttpStatusCode.InternalServerError)
-        {
-            Content = new StringContent("boom"),
-        }));
-
-        var ex = await Assert.ThrowsAsync<HttpRequestException>(
-            () => Gateway(handler).ResolveInformatieobjecttypeUrlAsync("Diploma"));
-        Assert.Contains("informatieobjecttypen", ex.Message);
-    }
-
-    [Fact]
-    public async Task Resolving_an_informatieobjecttype_throws_when_no_omschrijving_matches()
-    {
-        var handler = new StubHandler(_ => Task.FromResult(new HttpResponseMessage(HttpStatusCode.OK)
-        {
-            Content = JsonContent.Create(new
-            {
-                results = new[] { new { url = "http://openzaak/catalogi/api/v1/informatieobjecttypen/other", omschrijving = "Overig" } },
-            }),
-        }));
-
-        var ex = await Assert.ThrowsAsync<InvalidOperationException>(
-            () => Gateway(handler).ResolveInformatieobjecttypeUrlAsync("Diploma"));
-        Assert.Contains("Diploma", ex.Message);
-    }
-
-    [Fact]
-    public async Task Resolving_rejects_a_blank_business_key_without_calling_openzaak()
-    {
-        var handler = new StubHandler(_ => throw new InvalidOperationException("should not be sent"));
-
-        await Assert.ThrowsAnyAsync<ArgumentException>(() => Gateway(handler).ResolveZaaktypeUrlAsync(" "));
-        await Assert.ThrowsAnyAsync<ArgumentException>(() => Gateway(handler).ResolveInformatieobjecttypeUrlAsync(" "));
-    }
 }

services/acl/Acl.Tests/ZaaktypeCatalogTests.cs

@@ -1,92 +0,0 @@
-using Acl.Application;
-
-namespace Acl.Tests;
-
-public class ZaaktypeCatalogTests
-{
-    // A gateway that only supports resolution; the other members are unused here.
-    private sealed class ResolvingGateway : IZaakGateway
-    {
-        public int ZaaktypeCalls;
-        public int InformatieobjecttypeCalls;
-        public string? LastIdentificatie;
-        public string? LastOmschrijving;
-        public int ThrowZaaktypeTimes;
-        public Uri ZaaktypeUrl { get; } = new("http://openzaak/catalogi/api/v1/zaaktypen/big");
-        public Uri InformatieobjecttypeUrl { get; } = new("http://openzaak/catalogi/api/v1/informatieobjecttypen/dip");
-
-        public Task<Uri> ResolveZaaktypeUrlAsync(string identificatie, CancellationToken ct = default)
-        {
-            ZaaktypeCalls++;
-            LastIdentificatie = identificatie;
-            if (ZaaktypeCalls <= ThrowZaaktypeTimes)
-                throw new InvalidOperationException("no published zaaktype yet");
-            return Task.FromResult(ZaaktypeUrl);
-        }
-
-        public Task<Uri> ResolveInformatieobjecttypeUrlAsync(string omschrijving, CancellationToken ct = default)
-        {
-            InformatieobjecttypeCalls++;
-            LastOmschrijving = omschrijving;
-            return Task.FromResult(InformatieobjecttypeUrl);
-        }
-
-        public Task<Uri> OpenZaakAsync(ZaakRequest request, CancellationToken ct = default) => throw new NotSupportedException();
-        public Task SetZaakToEindstatusAsync(Uri z, Uri zt, DateOnly d, CancellationToken ct = default) => throw new NotSupportedException();
-        public Task SetZaakToCancellationStatusAsync(Uri z, Uri zt, DateOnly d, CancellationToken ct = default) => throw new NotSupportedException();
-        public Task<string> GetZaakIdentificatieAsync(Uri z, CancellationToken ct = default) => throw new NotSupportedException();
-        public Task<Uri> StoreDocumentAsync(DocumentRequest r, CancellationToken ct = default) => throw new NotSupportedException();
-    }
-
-    private static AclDefaults Defaults() => new()
-    {
-        Bronorganisatie = "517439943",
-        VerantwoordelijkeOrganisatie = "517439943",
-        Vertrouwelijkheidaanduiding = "openbaar",
-        ZaaktypeIdentificatie = "BIG-REGISTRATIE",
-        InformatieobjecttypeOmschrijving = "Diploma",
-    };
-
-    [Fact]
-    public async Task Resolves_the_zaaktype_and_informatieobjecttype_by_their_configured_business_keys()
-    {
-        var gateway = new ResolvingGateway();
-        var catalog = new CachedZaaktypeCatalog(gateway, Defaults());
-
-        Assert.Equal(gateway.ZaaktypeUrl, await catalog.GetZaaktypeUrlAsync());
-        Assert.Equal(gateway.InformatieobjecttypeUrl, await catalog.GetInformatieobjecttypeUrlAsync());
-        Assert.Equal("BIG-REGISTRATIE", gateway.LastIdentificatie);
-        Assert.Equal("Diploma", gateway.LastOmschrijving);
-    }
-
-    [Fact]
-    public async Task Caches_the_resolved_urls_so_the_gateway_is_hit_once()
-    {
-        var gateway = new ResolvingGateway();
-        var catalog = new CachedZaaktypeCatalog(gateway, Defaults());
-
-        for (var i = 0; i < 3; i++)
-        {
-            await catalog.GetZaaktypeUrlAsync();
-            await catalog.GetInformatieobjecttypeUrlAsync();
-        }
-
-        Assert.Equal(1, gateway.ZaaktypeCalls);
-        Assert.Equal(1, gateway.InformatieobjecttypeCalls);
-    }
-
-    [Fact]
-    public async Task Does_not_cache_a_failed_resolution_so_it_is_retried()
-    {
-        // The zaaktype is not published yet on the first call; the catalog must retry (not cache the
-        // failure) so a later call succeeds once it is published.
-        var gateway = new ResolvingGateway { ThrowZaaktypeTimes = 1 };
-        var catalog = new CachedZaaktypeCatalog(gateway, Defaults());
-
-        await Assert.ThrowsAsync<InvalidOperationException>(() => catalog.GetZaaktypeUrlAsync());
-        var url = await catalog.GetZaaktypeUrlAsync();
-
-        Assert.Equal(gateway.ZaaktypeUrl, url);
-        Assert.Equal(2, gateway.ZaaktypeCalls);
-    }
-}

services/bff/Bff.Api/Bff.Api.csproj

@@ -10,11 +10,6 @@
     <!-- OIDC/JWT validation of Keycloak-issued tokens (ADR-0010) and OpenAPI generation. -->
     <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="10.0.8" />
     <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="10.0.8" />
-    <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.17.0" />
-    <PackageReference Include="OpenTelemetry.Exporter.Prometheus.AspNetCore" Version="1.17.0-beta.1" />
-    <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.17.0" />
-    <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.17.0" />
-    <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.17.0" />
   </ItemGroup>
 
 </Project>

services/bff/Bff.Api/DownstreamClients.cs

@@ -5,10 +5,6 @@ namespace Bff.Api;
 /// <summary>What the self-service submit returns to the portal (the domain's registration id + status).</summary>
 public sealed record SubmitAccepted(string RegistrationId, string Status);
 
-/// <summary>The caller's current open registration, for resuming the self-service portal after a
-/// refresh (S-26): the reference (registration id) + its status.</summary>
-public sealed record CurrentRegistration(string RegistrationId, string Status);
-
 /// <summary>A projection row as the projection-api serves it. <c>Bsn</c>/<c>NaamPlaceholder</c> are
 /// read but never surfaced by the openbaar endpoint (public-safe filtering, ADR-0010/S-09).
 /// <c>Reference</c> is the public-safe citizen reference (the zaak identificatie, #78).</summary>
@@ -26,10 +22,6 @@ public interface IDomainClient
 {
     Task<SubmitAccepted> SubmitRegistrationAsync(string bsn, CancellationToken ct = default);
 
-    /// <summary>The caller's current open registration (resume after refresh, S-26), or <c>null</c>
-    /// when they have none in flight. Owner-scoped by <paramref name="bsn"/>.</summary>
-    Task<CurrentRegistration?> GetCurrentRegistrationAsync(string bsn, CancellationToken ct = default);
-
     /// <summary>Withdraw the caller's own registration ("trek aanvraag in"). Owner-scoped by
     /// <paramref name="bsn"/>. Returns <c>false</c> when the domain reports the registration is
     /// unknown or not the caller's (404), so the BFF can relay a 404 rather than a 500.</summary>
@@ -66,18 +58,6 @@ public sealed class DomainClient(HttpClient http) : IDomainClient
         return new SubmitAccepted(dto.RegistrationId, dto.Status);
     }
 
-    public async Task<CurrentRegistration?> GetCurrentRegistrationAsync(string bsn, CancellationToken ct = default)
-    {
-        using var response = await http.GetAsync($"registrations/current?bsn={Uri.EscapeDataString(bsn)}", ct);
-        // The domain 404s when the citizen has no open registration — that's "none", not an error.
-        if (response.StatusCode == System.Net.HttpStatusCode.NotFound)
-            return null;
-        response.EnsureSuccessStatusCode();
-        var dto = await response.Content.ReadFromJsonAsync<DomainResponse>(ct)
-            ?? throw new InvalidOperationException("The Domain Service returned an empty registration response.");
-        return new CurrentRegistration(dto.RegistrationId, dto.Status);
-    }
-
     public async Task<bool> WithdrawRegistrationAsync(string registrationId, string bsn, CancellationToken ct = default)
     {
         using var response = await http.PostAsJsonAsync(

services/bff/Bff.Api/Program.cs

@@ -3,33 +3,9 @@ using System.Text.Json;
 using System.Text.Json.Serialization;
 using Bff.Api;
 using Microsoft.AspNetCore.Authentication.JwtBearer;
-using OpenTelemetry.Metrics;
-using OpenTelemetry.Resources;
-using OpenTelemetry.Trace;
 
 var builder = WebApplication.CreateBuilder(args);
 
-// OpenTelemetry tracing (S-16b, ADR-0023): auto-instrument incoming ASP.NET Core requests and
-// outgoing HttpClient calls (BFF → Domain, BFF → projection-api), exported over OTLP to Tempo, so a
-// portal request is one connected trace across the services. Service name + OTLP endpoint come from
-// OTEL_* env (compose); the exporter no-ops when Tempo is unreachable. /health is filtered out.
-builder.Services.AddOpenTelemetry()
-    .ConfigureResource(r => r.AddService(
-        builder.Configuration["OTEL_SERVICE_NAME"] ?? builder.Environment.ApplicationName))
-    .WithTracing(tracing => tracing
-        .AddAspNetCoreInstrumentation(o => o.Filter = ctx => ctx.Request.Path != "/health")
-        .AddHttpClientInstrumentation()
-        .AddOtlpExporter())
-    // OpenTelemetry metrics (S-16c, ADR-0023): the golden signals for the request path —
-    // http.server.request.duration (traffic/errors/latency) + http.client.* for the downstream hops,
-    // plus the built-in System.Runtime meter for saturation (GC, CPU, thread pool). Prometheus scrapes
-    // these from /metrics (mapped below); no OTLP push for metrics, so no collector hop (ADR-0023).
-    .WithMetrics(metrics => metrics
-        .AddAspNetCoreInstrumentation()
-        .AddHttpClientInstrumentation()
-        .AddMeter("System.Runtime")
-        .AddPrometheusExporter());
-
 var keycloakAuthority = builder.Configuration["Keycloak:Authority"]
     ?? throw new InvalidOperationException("Missing configuration 'Keycloak:Authority'");
 // Behandelaars authenticate against a *different* Keycloak realm (medewerker) than citizens (digid),
@@ -92,9 +68,6 @@ app.UseAuthentication();
 app.UseAuthorization();
 
 app.MapHealthChecks("/health");
-
-// Prometheus scrape endpoint (S-16c): exposes the OTel metrics above in Prometheus text format.
-app.MapPrometheusScrapingEndpoint();
 app.MapOpenApi();
 
 // Self-service submit: requires a valid digid token; the bsn comes from the token, not the body,
@@ -113,24 +86,6 @@ app.MapPost("/self-service/registrations", async (ClaimsPrincipal user, IDomainC
     .Produces(StatusCodes.Status400BadRequest)
     .Produces(StatusCodes.Status401Unauthorized);
 
-// Self-service resume (S-26): the signed-in zorgprofessional's current open registration, so the
-// portal can restore its reference + actions after a page refresh. The bsn comes from the DigiD token;
-// 204 when the citizen has none in flight (so the portal shows the submit form).
-app.MapGet("/self-service/registrations", async (ClaimsPrincipal user, IDomainClient domain, CancellationToken ct) =>
-{
-    var bsn = user.FindFirstValue("bsn");
-    if (string.IsNullOrWhiteSpace(bsn))
-        return Results.BadRequest("The token carries no bsn claim.");
-
-    var current = await domain.GetCurrentRegistrationAsync(bsn, ct);
-    return current is null ? Results.NoContent() : Results.Ok(current);
-})
-    .RequireAuthorization()
-    .Produces<CurrentRegistration>(StatusCodes.Status200OK)
-    .Produces(StatusCodes.Status204NoContent)
-    .Produces(StatusCodes.Status400BadRequest)
-    .Produces(StatusCodes.Status401Unauthorized);
-
 // Self-service withdrawal (S-11): the signed-in zorgprofessional withdraws their own registration.
 // The bsn comes from the DigiD token and is forwarded to the domain, which owner-scopes the action;
 // a registration that is unknown or not the caller's comes back 404 (ownership is not revealed).

services/bff/Bff.Tests/BffFactory.cs

@@ -82,18 +82,6 @@ internal sealed class FakeDomainClient : IDomainClient
         return Task.FromResult(Result);
     }
 
-    public string? CurrentQueriedBsn { get; private set; }
-
-    /// <summary>The current open registration the fake domain returns (null → the citizen has none in
-    /// flight, so the BFF replies 204). Tests set this to exercise resume.</summary>
-    public CurrentRegistration? Current { get; set; }
-
-    public Task<CurrentRegistration?> GetCurrentRegistrationAsync(string bsn, CancellationToken ct = default)
-    {
-        CurrentQueriedBsn = bsn;
-        return Task.FromResult(Current);
-    }
-
     public (string RegistrationId, string Bsn)? Withdrawn { get; private set; }
 
     /// <summary>Whether the fake domain reports the withdrawal as done (true → 204) or not-found/not-owned

services/bff/Bff.Tests/MetricsEndpointTests.cs

@@ -1,28 +0,0 @@
-using System.Net;
-using Microsoft.AspNetCore.Mvc.Testing;
-
-namespace Bff.Tests;
-
-/// <summary>
-/// S-16c (#124): the service exposes OTel HTTP-server metrics in Prometheus text format at /metrics,
-/// so Prometheus can scrape the golden signals (traffic, errors, latency) for the request path.
-/// </summary>
-public class MetricsEndpointTests(WebApplicationFactory<Program> factory)
-    : IClassFixture<WebApplicationFactory<Program>>
-{
-    [Fact]
-    public async Task Metrics_endpoint_exposes_http_server_request_duration_after_traffic()
-    {
-        var client = factory.CreateClient();
-
-        // One request produces an http.server.request.duration measurement...
-        await client.GetAsync("/health");
-
-        // ...which the /metrics scrape endpoint then exposes in Prometheus text format.
-        var response = await client.GetAsync("/metrics");
-
-        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
-        var body = await response.Content.ReadAsStringAsync();
-        Assert.Contains("http_server_request_duration", body);
-    }
-}

services/bff/Bff.Tests/SelfServiceEndpointTests.cs

@@ -1,7 +1,6 @@
 using System.Net;
 using System.Net.Http.Headers;
 using System.Net.Http.Json;
-using Bff.Api;
 
 namespace Bff.Tests;
 
@@ -169,52 +168,5 @@ public class SelfServiceEndpointTests
         Assert.Equal(HttpStatusCode.NotFound, response.StatusCode);
     }
 
-    private static HttpRequestMessage Current(string? bearer)
-    {
-        var request = new HttpRequestMessage(HttpMethod.Get, "/self-service/registrations");
-        if (bearer is not null)
-            request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", bearer);
-        return request;
-    }
-
-    [Fact]
-    public async Task Rejects_the_current_registration_lookup_without_a_token()
-    {
-        using var factory = new BffFactory();
-
-        var response = await factory.CreateClient().SendAsync(Current(bearer: null));
-
-        Assert.Equal(HttpStatusCode.Unauthorized, response.StatusCode);
-    }
-
-    [Fact]
-    public async Task Returns_no_content_when_the_caller_has_no_open_registration()
-    {
-        using var factory = new BffFactory();
-        factory.Domain.Current = null;
-
-        var response = await factory.CreateClient().SendAsync(Current(TestTokens.Valid("123456782")));
-
-        Assert.Equal(HttpStatusCode.NoContent, response.StatusCode);
-        Assert.Equal("123456782", factory.Domain.CurrentQueriedBsn);
-    }
-
-    [Fact]
-    public async Task Returns_the_callers_current_registration_when_one_is_open()
-    {
-        using var factory = new BffFactory();
-        factory.Domain.Current = new CurrentRegistration("reg-77", "Ingediend");
-
-        var response = await factory.CreateClient().SendAsync(Current(TestTokens.Valid("123456782")));
-
-        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
-        Assert.Equal("123456782", factory.Domain.CurrentQueriedBsn);
-        var body = await response.Content.ReadFromJsonAsync<CurrentRegistrationDto>();
-        Assert.Equal("reg-77", body!.RegistrationId);
-        Assert.Equal("Ingediend", body.Status);
-    }
-
     private sealed record SubmitAcceptedDto(string RegistrationId, string Status);
-
-    private sealed record CurrentRegistrationDto(string RegistrationId, string Status);
 }

services/bff/openapi.json

@@ -28,32 +28,6 @@
             "description": "Unauthorized"
           }
         }
-      },
-      "get": {
-        "tags": [
-          "Bff.Api"
-        ],
-        "responses": {
-          "200": {
-            "description": "OK",
-            "content": {
-              "application/json": {
-                "schema": {
-                  "$ref": "#/components/schemas/CurrentRegistration"
-                }
-              }
-            }
-          },
-          "204": {
-            "description": "No Content"
-          },
-          "400": {
-            "description": "Bad Request"
-          },
-          "401": {
-            "description": "Unauthorized"
-          }
-        }
       }
     },
     "/self-service/registrations/{id}/withdraw": {
@@ -231,21 +205,6 @@
   },
   "components": {
     "schemas": {
-      "CurrentRegistration": {
-        "required": [
-          "registrationId",
-          "status"
-        ],
-        "type": "object",
-        "properties": {
-          "registrationId": {
-            "type": "string"
-          },
-          "status": {
-            "type": "string"
-          }
-        }
-      },
       "DecideRequest": {
         "required": [
           "besluit"

services/domain/Big.Api/Big.Api.csproj

@@ -5,15 +5,6 @@
     <ProjectReference Include="..\Big.Infrastructure\Big.Infrastructure.csproj" />
   </ItemGroup>
 
-  <ItemGroup>
-    <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.17.0" />
-    <PackageReference Include="OpenTelemetry.Exporter.Prometheus.AspNetCore" Version="1.17.0-beta.1" />
-    <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.17.0" />
-    <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.17.0" />
-    <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.17.0" />
-    <PackageReference Include="Quartz.Extensions.Hosting" Version="3.18.2" />
-  </ItemGroup>
-
   <PropertyGroup>
     <TargetFramework>net10.0</TargetFramework>
     <Nullable>enable</Nullable>

services/domain/Big.Api/Program.cs

@@ -1,35 +1,9 @@
 using Big.Application;
 using Big.Domain;
 using Big.Infrastructure;
-using OpenTelemetry.Metrics;
-using OpenTelemetry.Resources;
-using OpenTelemetry.Trace;
-using Quartz;
 
 var builder = WebApplication.CreateBuilder(args);
 
-// OpenTelemetry tracing (S-16b, ADR-0023): auto-instrument incoming ASP.NET Core requests and
-// outgoing HttpClient calls, exported over OTLP to Tempo, so a request is one connected trace across
-// the services. Service name + OTLP endpoint come from OTEL_* env (compose); the exporter no-ops
-// harmlessly when Tempo is unreachable (e.g. a service run standalone). /health is filtered out so
-// liveness polls don't flood the traces.
-builder.Services.AddOpenTelemetry()
-    .ConfigureResource(r => r.AddService(
-        builder.Configuration["OTEL_SERVICE_NAME"] ?? builder.Environment.ApplicationName))
-    .WithTracing(tracing => tracing
-        .AddAspNetCoreInstrumentation(o => o.Filter = ctx => ctx.Request.Path != "/health")
-        .AddHttpClientInstrumentation()
-        .AddOtlpExporter())
-    // OpenTelemetry metrics (S-16c, ADR-0023): golden signals for the request path —
-    // http.server.request.duration (traffic/errors/latency) + http.client.* for downstream hops, plus
-    // the built-in System.Runtime meter for saturation (GC, CPU, thread pool). Prometheus scrapes these
-    // from /metrics (mapped below); metrics aren't pushed over OTLP, so no collector hop (ADR-0023).
-    .WithMetrics(metrics => metrics
-        .AddAspNetCoreInstrumentation()
-        .AddHttpClientInstrumentation()
-        .AddMeter("System.Runtime")
-        .AddPrometheusExporter());
-
 // Options bound from configuration (compose sets Flowable__* and Acl__* env vars).
 builder.Services.AddSingleton(sp => sp.GetRequiredService<IConfiguration>()
     .GetSection("Flowable").Get<FlowableOptions>()
@@ -41,10 +15,6 @@ builder.Services.AddSingleton(sp => sp.GetRequiredService<IConfiguration>()
 // The in-memory registration store is shared between the submit endpoint and the worker (ADR-0009).
 builder.Services.AddSingleton<IRegistrationStore, InMemoryRegistrationStore>();
 
-// The system clock, injected wherever a use case needs "now" (e.g. stamping the inscription moment
-// on approval, S-17). Injected as TimeProvider so tests can substitute a fixed clock.
-builder.Services.AddSingleton(TimeProvider.System);
-
 // The Workflow Client is one type behind two ports (start side + worker side); both resolve to the
 // same HttpClient-backed implementation — the only code that talks to Flowable (§8.2).
 builder.Services.AddHttpClient<FlowableWorkflowClient>();
@@ -66,7 +36,6 @@ builder.Services.AddScoped<OpenZaakJobProcessor>();
 builder.Services.AddScoped<BeoordelingEscalatieProcessor>();
 builder.Services.AddScoped<ExpireRegistrationWorker>();
 builder.Services.AddScoped<RegistratieVerlopenProcessor>();
-builder.Services.AddScoped<HerregistratieReminderSweep>();
 
 // The hosted external-task job worker polls Flowable and drives OpenZaakAanmaken to completion.
 builder.Services.AddHostedService<OpenZaakJobPump>();
@@ -77,26 +46,10 @@ builder.Services.AddHostedService<BeoordelingEscalatiePump>();
 // parks and expires each lapsed registration to VERLOPEN (S-10a, ADR-0017).
 builder.Services.AddHostedService<RegistratieVerlopenPump>();
 
-// The herregistratie reminder sweep runs on a daily cron via Quartz.NET (S-17, ADR-0022) — a
-// time-triggered fleet sweep, deliberately a different mechanism from the queue-draining pumps above.
-// The cron is overridable with Quartz__Cron; it defaults to 03:00 daily.
-builder.Services.AddQuartz(q =>
-{
-    var jobKey = new JobKey("herregistratie-reminder");
-    q.AddJob<HerregistratieReminderJob>(jobKey);
-    q.AddTrigger(t => t
-        .ForJob(jobKey)
-        .WithCronSchedule(builder.Configuration["Quartz:Cron"] ?? "0 0 3 * * ?"));
-});
-builder.Services.AddQuartzHostedService(o => o.WaitForJobsToComplete = true);
-
 var app = builder.Build();
 
 app.MapGet("/health", () => "Healthy");
 
-// Prometheus scrape endpoint (S-16c): exposes the OTel metrics above in Prometheus text format.
-app.MapPrometheusScrapingEndpoint();
-
 // Submit a registration. The aggregate is created (INGEDIEND) and the registratie process started;
 // the zaak is opened later, off the request path, by the worker — so this returns 202 Accepted with
 // a location to read the registration's progress (ADR-0009, eventual consistency).
@@ -188,21 +141,6 @@ app.MapGet("/behandel/werkbak", async (Werkbak werkbak, CancellationToken ct) =>
     Results.Ok(await werkbak.GetAsync(ct)));
 
 // Read a registration. Its zaak URL appears once the worker has opened the zaak (eventually).
-// The citizen's current open registration, looked up by bsn — lets the self-service portal resume
-// after a refresh (S-26). The BFF forwards the bsn from the DigiD token; the domain trusts its
-// callers (§8.3). 404 when the citizen has none in flight.
-app.MapGet("/registrations/current", async (string bsn, IRegistrationStore store, CancellationToken ct) =>
-{
-    if (string.IsNullOrWhiteSpace(bsn))
-        return Results.BadRequest("A bsn is required.");
-
-    var registration = await store.FindOpenByBsnAsync(bsn, ct);
-    return registration is null
-        ? Results.NotFound()
-        : Results.Ok(new RegistrationResponse(
-            registration.Id.ToString(), registration.Status.ToString(), registration.ZaakUrl?.ToString()));
-});
-
 app.MapGet("/registrations/{id}", async (string id, IRegistrationStore store, CancellationToken ct) =>
 {
     if (!Guid.TryParse(id, out var guid))
@@ -212,8 +150,7 @@ app.MapGet("/registrations/{id}", async (string id, IRegistrationStore store, Ca
     return registration is null
         ? Results.NotFound()
         : Results.Ok(new RegistrationResponse(
-            registration.Id.ToString(), registration.Status.ToString(), registration.ZaakUrl?.ToString(),
-            registration.HerregistratieVoor?.ToString("O"), registration.HerregistratieReminderVerstuurd));
+            registration.Id.ToString(), registration.Status.ToString(), registration.ZaakUrl?.ToString()));
 });
 
 await app.RunAsync();
@@ -226,11 +163,6 @@ public sealed record WithdrawRequest(string Bsn);
 
 public sealed record ProvideDocumentsRequest(string Bsn, string ContentBase64, string? FileName = null, string? ContentType = null);
 
-public sealed record RegistrationResponse(
-    string RegistrationId,
-    string Status,
-    string? ZaakUrl,
-    string? HerregistratieVoor = null,
-    bool HerregistratieReminderVerstuurd = false);
+public sealed record RegistrationResponse(string RegistrationId, string Status, string? ZaakUrl);
 
 public partial class Program;

services/domain/Big.Application/ApproveRegistration.cs

@@ -12,7 +12,7 @@ public sealed record ApproveRegistrationCommand(RegistrationId RegistrationId);
 /// zaak status is the projection's source of truth (it flows back over NRC); the aggregate transition
 /// keeps the domain's own view consistent.
 /// </summary>
-public sealed class ApproveRegistration(IRegistrationStore store, IAclClient acl, TimeProvider clock)
+public sealed class ApproveRegistration(IRegistrationStore store, IAclClient acl)
 {
     public async Task HandleAsync(ApproveRegistrationCommand command, CancellationToken ct = default)
     {
@@ -30,7 +30,7 @@ public sealed class ApproveRegistration(IRegistrationStore store, IAclClient acl
                 $"Registration {command.RegistrationId} has no zaak yet; it cannot be approved.");
 
         await acl.ApproveZaakAsync(registration.ZaakUrl, ct);
-        registration.Approve(clock.GetUtcNow());
+        registration.Approve();
         await store.SaveAsync(registration, ct);
     }
 }

services/domain/Big.Application/BeoordeelRegistratie.cs

@@ -25,7 +25,7 @@ public sealed record BeoordeelRegistratieCommand(RegistrationId RegistrationId,
 /// decisions are idempotent — a repeated or redelivered decision that matches the current terminal
 /// state is a no-op, so the ACL is not called and the task not completed twice.
 /// </summary>
-public sealed class BeoordeelRegistratie(IRegistrationStore store, IAclClient acl, IUserTaskClient tasks, TimeProvider clock)
+public sealed class BeoordeelRegistratie(IRegistrationStore store, IAclClient acl, IUserTaskClient tasks)
 {
     public async Task HandleAsync(BeoordeelRegistratieCommand command, CancellationToken ct = default)
     {
@@ -44,7 +44,7 @@ public sealed class BeoordeelRegistratie(IRegistrationStore store, IAclClient ac
                     throw new InvalidOperationException(
                         $"Registration {command.RegistrationId} has no zaak yet; it cannot be approved.");
                 await acl.ApproveZaakAsync(registration.ZaakUrl, ct);
-                registration.Approve(clock.GetUtcNow());
+                registration.Approve();
                 break;
 
             case BeoordelingsBesluit.Afwijzen:

services/domain/Big.Application/HerregistratieReminderSweep.cs

@@ -1,30 +0,0 @@
-using Big.Domain;
-
-namespace Big.Application;
-
-/// <summary>
-/// The herregistratie reminder sweep (S-17): find the inscriptions whose herregistratie deadline is
-/// within the reminder window and have not yet been reminded, mark each reminded, and persist it. Pure
-/// application logic over ports — it knows nothing of Quartz; the scheduled job that fires it on a cron
-/// lives in Infrastructure (mirroring how the pumps' processors are pure and the pump is the shell).
-/// Idempotent: <see cref="Registration.MarkHerregistratieReminderVerstuurd"/> drops an inscription from
-/// the next sweep's candidate set, so a re-fire reminds no one twice. Returns the reminded ids so the
-/// caller can observe the sweep's effect — the reminder itself is the flag persisted on the aggregate.
-/// </summary>
-public sealed class HerregistratieReminderSweep(IRegistrationStore store, TimeProvider clock)
-{
-    public async Task<IReadOnlyList<RegistrationId>> SweepAsync(CancellationToken ct = default)
-    {
-        var due = await store.FindDueForHerregistratieReminderAsync(clock.GetUtcNow(), ct);
-
-        var reminded = new List<RegistrationId>(due.Count);
-        foreach (var registration in due)
-        {
-            registration.MarkHerregistratieReminderVerstuurd();
-            await store.SaveAsync(registration, ct);
-            reminded.Add(registration.Id);
-        }
-
-        return reminded;
-    }
-}

services/domain/Big.Application/Ports.cs

@@ -102,18 +102,6 @@ public interface IRegistrationStore
 
     /// <summary>Load a registration by id, or <c>null</c> if none exists.</summary>
     Task<Registration?> GetAsync(RegistrationId id, CancellationToken ct = default);
-
-    /// <summary>The citizen's current <em>open</em> (non-terminal: INGEDIEND/IN_BEHANDELING)
-    /// registration, or <c>null</c> if they have none in flight. Lets the self-service portal resume
-    /// an existing registration after a refresh (S-26); terminal registrations are not resumed.</summary>
-    Task<Registration?> FindOpenByBsnAsync(string bsn, CancellationToken ct = default);
-
-    /// <summary>The inscriptions whose herregistratie reminder is due as of <paramref name="asOf"/> and
-    /// not yet sent — the herregistratie reminder sweep's candidate set (S-17). The predicate is the
-    /// aggregate's own <see cref="Registration.HerregistratieReminderDue"/> rule, so the store never
-    /// duplicates the herregistratie policy.</summary>
-    Task<IReadOnlyList<Registration>> FindDueForHerregistratieReminderAsync(
-        DateTimeOffset asOf, CancellationToken ct = default);
 }
 
 /// <summary>

services/domain/Big.Domain/Registration.cs

@@ -92,12 +92,11 @@ public sealed class Registration
 
     /// <summary>
     /// Approve the registration — the behandelaar's decision to enter it in the register. Advances a
-    /// submitted or in-behandeling registration to <see cref="RegistrationStatus.Ingeschreven"/> and
-    /// records <paramref name="ingeschrevenOp"/> as the moment of inscription, which starts the
-    /// herregistratie clock (S-17). Requires an opened zaak (the approval sets that zaak's status via
-    /// the ACL); a registration that has already been decided cannot be approved again.
+    /// submitted or in-behandeling registration to <see cref="RegistrationStatus.Ingeschreven"/>.
+    /// Requires an opened zaak (the approval sets that zaak's status via the ACL); a registration that
+    /// has already been decided cannot be approved again.
     /// </summary>
-    public void Approve(DateTimeOffset ingeschrevenOp)
+    public void Approve()
     {
         if (ZaakUrl is null)
             throw new InvalidOperationException(
@@ -105,54 +104,6 @@ public sealed class Registration
 
         RequireOpenForDecision(nameof(Approve));
         Status = RegistrationStatus.Ingeschreven;
-        IngeschrevenOp = ingeschrevenOp;
-    }
-
-    // --- Herregistratie (S-17) — RED stubs, implemented in the green commit ---------------------
-
-    /// <summary>How long a BIG inscription stays valid before herregistratie is required.</summary>
-    // ponytail: fixed 5-year term — a calibration knob, not a config surface. If a demo needs it
-    // per-catalogus, promote it to policy passed in from the beheer config (S-15).
-    public static readonly TimeSpan HerregistratieGeldigheid = TimeSpan.FromDays(365 * 5);
-
-    /// <summary>How long before the deadline the herregistratie reminder is sent (S-17: 90 days).</summary>
-    // ponytail: fixed 90-day lead time — calibration knob; same promotion path as HerregistratieGeldigheid.
-    public static readonly TimeSpan Herinneringstermijn = TimeSpan.FromDays(90);
-
-    /// <summary>When the registration was entered in the register, once approved; the start of its
-    /// herregistratie clock. Null until it is <see cref="RegistrationStatus.Ingeschreven"/>.</summary>
-    public DateTimeOffset? IngeschrevenOp { get; private set; }
-
-    /// <summary>The date by which herregistratie must happen: inscription + validity. Null until
-    /// inscribed.</summary>
-    public DateTimeOffset? HerregistratieVoor =>
-        IngeschrevenOp is DateTimeOffset ingeschrevenOp ? ingeschrevenOp + HerregistratieGeldigheid : null;
-
-    /// <summary>Whether the herregistratie reminder has been sent for this inscription (S-17).</summary>
-    public bool HerregistratieReminderVerstuurd { get; private set; }
-
-    /// <summary>Whether, as of <paramref name="asOf"/>, this registration is due a herregistratie
-    /// reminder: it is inscribed, the reminder window before its deadline has opened, and it has not
-    /// already been reminded. Once inside the window it stays due until reminded (an overdue inscription
-    /// is still due). This is the single rule the store query and the sweep both build on.</summary>
-    public bool HerregistratieReminderDue(DateTimeOffset asOf) =>
-        Status == RegistrationStatus.Ingeschreven
-        && !HerregistratieReminderVerstuurd
-        && IngeschrevenOp is DateTimeOffset ingeschrevenOp
-        && asOf >= ingeschrevenOp + HerregistratieGeldigheid - Herinneringstermijn;
-
-    /// <summary>Record that the herregistratie reminder has been sent. Idempotent — a re-sweep is a
-    /// no-op (§8.6); only an inscribed registration can be reminded.</summary>
-    public void MarkHerregistratieReminderVerstuurd()
-    {
-        if (HerregistratieReminderVerstuurd)
-            return;
-
-        if (Status != RegistrationStatus.Ingeschreven)
-            throw new InvalidOperationException(
-                $"Registration {Id} is {Status}; only an INGESCHREVEN registration can be sent a herregistratie reminder.");
-
-        HerregistratieReminderVerstuurd = true;
     }
 
     /// <summary>

services/domain/Big.Infrastructure/Big.Infrastructure.csproj

@@ -19,7 +19,6 @@
     <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="10.0.0" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="10.0.0" />
-    <PackageReference Include="Quartz" Version="3.18.2" />
   </ItemGroup>
 
 </Project>

services/domain/Big.Infrastructure/HerregistratieReminderJob.cs

@@ -1,26 +0,0 @@
-using Big.Application;
-using Microsoft.Extensions.Logging;
-using Quartz;
-
-namespace Big.Infrastructure;
-
-/// <summary>
-/// The Quartz job that fires the herregistratie reminder sweep on a cron schedule (S-17, ADR-0022).
-/// A deliberately thin shell — it resolves the pure <see cref="HerregistratieReminderSweep"/> (Quartz's
-/// MS-DI job factory gives each fire its own scope) and logs how many reminders went out; all the
-/// sweep logic is unit-tested in the application layer. Quartz drives this — rather than a
-/// BackgroundService poll loop like the pumps — because it is a time-triggered fleet sweep, not a
-/// queue to drain (the distinction recorded in ADR-0022). <see cref="DisallowConcurrentExecutionAttribute"/>
-/// stops a slow sweep overlapping the next fire against the shared store.
-/// </summary>
-[DisallowConcurrentExecution]
-public sealed class HerregistratieReminderJob(
-    HerregistratieReminderSweep sweep, ILogger<HerregistratieReminderJob> logger) : IJob
-{
-    public async Task Execute(IJobExecutionContext context)
-    {
-        var reminded = await sweep.SweepAsync(context.CancellationToken);
-        logger.LogInformation(
-            "Herregistratie-sweep voltooid: {Count} herinnering(en) verstuurd.", reminded.Count);
-    }
-}

services/domain/Big.Infrastructure/InMemoryRegistrationStore.cs

@@ -22,13 +22,4 @@ public sealed class InMemoryRegistrationStore : IRegistrationStore
 
     public Task<Registration?> GetAsync(RegistrationId id, CancellationToken ct = default)
         => Task.FromResult(_byId.GetValueOrDefault(id));
-
-    public Task<Registration?> FindOpenByBsnAsync(string bsn, CancellationToken ct = default)
-        => Task.FromResult(_byId.Values.FirstOrDefault(r =>
-            r.Bsn == bsn && r.Status is RegistrationStatus.Ingediend or RegistrationStatus.InBehandeling));
-
-    public Task<IReadOnlyList<Registration>> FindDueForHerregistratieReminderAsync(
-        DateTimeOffset asOf, CancellationToken ct = default)
-        => Task.FromResult<IReadOnlyList<Registration>>(
-            _byId.Values.Where(r => r.HerregistratieReminderDue(asOf)).ToList());
 }

services/domain/Big.Tests/ApproveRegistrationTests.cs

@@ -19,7 +19,7 @@ public class ApproveRegistrationTests
         var acl = new FakeAclClient();
         var registration = WithZaak();
         store.Seed(registration);
-        var handler = new ApproveRegistration(store, acl, TimeProvider.System);
+        var handler = new ApproveRegistration(store, acl);
 
         await handler.HandleAsync(new ApproveRegistrationCommand(registration.Id));
 
@@ -36,7 +36,7 @@ public class ApproveRegistrationTests
     {
         var store = new FakeRegistrationStore();
         var acl = new FakeAclClient();
-        var handler = new ApproveRegistration(store, acl, TimeProvider.System);
+        var handler = new ApproveRegistration(store, acl);
 
         await Assert.ThrowsAsync<ArgumentNullException>(() => handler.HandleAsync(null!));
         Assert.Equal(0, acl.ApproveCallCount);
@@ -47,7 +47,7 @@ public class ApproveRegistrationTests
     {
         var store = new FakeRegistrationStore();
         var acl = new FakeAclClient();
-        var handler = new ApproveRegistration(store, acl, TimeProvider.System);
+        var handler = new ApproveRegistration(store, acl);
 
         var ex = await Assert.ThrowsAsync<InvalidOperationException>(
             () => handler.HandleAsync(new ApproveRegistrationCommand(RegistrationId.New())));
@@ -62,7 +62,7 @@ public class ApproveRegistrationTests
         var acl = new FakeAclClient();
         var registration = Registration.Submit("123456782"); // no zaak yet
         store.Seed(registration);
-        var handler = new ApproveRegistration(store, acl, TimeProvider.System);
+        var handler = new ApproveRegistration(store, acl);
 
         var ex = await Assert.ThrowsAsync<InvalidOperationException>(
             () => handler.HandleAsync(new ApproveRegistrationCommand(registration.Id)));
@@ -77,7 +77,7 @@ public class ApproveRegistrationTests
         var acl = new FakeAclClient();
         var registration = WithZaak();
         store.Seed(registration);
-        var handler = new ApproveRegistration(store, acl, TimeProvider.System);
+        var handler = new ApproveRegistration(store, acl);
 
         await handler.HandleAsync(new ApproveRegistrationCommand(registration.Id));
         await handler.HandleAsync(new ApproveRegistrationCommand(registration.Id));

services/domain/Big.Tests/BeoordeelRegistratieTests.cs

@@ -29,7 +29,7 @@ public class BeoordeelRegistratieTests
         var registration = WithZaak();
         store.Seed(registration);
         var tasks = TaskFor(registration);
-        var handler = new BeoordeelRegistratie(store, acl, tasks, TimeProvider.System);
+        var handler = new BeoordeelRegistratie(store, acl, tasks);
 
         await handler.HandleAsync(new BeoordeelRegistratieCommand(registration.Id, BeoordelingsBesluit.Goedkeuren));
 
@@ -50,7 +50,7 @@ public class BeoordeelRegistratieTests
         var registration = WithZaak();
         store.Seed(registration);
         var tasks = TaskFor(registration);
-        var handler = new BeoordeelRegistratie(store, acl, tasks, TimeProvider.System);
+        var handler = new BeoordeelRegistratie(store, acl, tasks);
 
         await handler.HandleAsync(new BeoordeelRegistratieCommand(registration.Id, BeoordelingsBesluit.Afwijzen));
 
@@ -69,7 +69,7 @@ public class BeoordeelRegistratieTests
         var registration = WithZaak();
         registration.TakeIntoBehandeling();
         store.Seed(registration);
-        var handler = new BeoordeelRegistratie(store, acl, TaskFor(registration), TimeProvider.System);
+        var handler = new BeoordeelRegistratie(store, acl, TaskFor(registration));
 
         await handler.HandleAsync(new BeoordeelRegistratieCommand(registration.Id, BeoordelingsBesluit.Goedkeuren));
 
@@ -81,7 +81,7 @@ public class BeoordeelRegistratieTests
     {
         var store = new FakeRegistrationStore();
         var acl = new FakeAclClient();
-        var handler = new BeoordeelRegistratie(store, acl, new FakeUserTaskClient([]), TimeProvider.System);
+        var handler = new BeoordeelRegistratie(store, acl, new FakeUserTaskClient([]));
 
         await Assert.ThrowsAsync<ArgumentNullException>(() => handler.HandleAsync(null!));
         Assert.Equal(0, acl.ApproveCallCount);
@@ -93,7 +93,7 @@ public class BeoordeelRegistratieTests
     {
         var store = new FakeRegistrationStore();
         var acl = new FakeAclClient();
-        var handler = new BeoordeelRegistratie(store, acl, new FakeUserTaskClient([]), TimeProvider.System);
+        var handler = new BeoordeelRegistratie(store, acl, new FakeUserTaskClient([]));
 
         var ex = await Assert.ThrowsAsync<InvalidOperationException>(() =>
             handler.HandleAsync(new BeoordeelRegistratieCommand(RegistrationId.New(), BeoordelingsBesluit.Goedkeuren)));
@@ -108,7 +108,7 @@ public class BeoordeelRegistratieTests
         var acl = new FakeAclClient();
         var registration = Registration.Submit("123456782"); // no zaak yet
         store.Seed(registration);
-        var handler = new BeoordeelRegistratie(store, acl, TaskFor(registration), TimeProvider.System);
+        var handler = new BeoordeelRegistratie(store, acl, TaskFor(registration));
 
         var ex = await Assert.ThrowsAsync<InvalidOperationException>(() =>
             handler.HandleAsync(new BeoordeelRegistratieCommand(registration.Id, BeoordelingsBesluit.Goedkeuren)));
@@ -123,7 +123,7 @@ public class BeoordeelRegistratieTests
         var acl = new FakeAclClient();
         var registration = WithZaak();
         store.Seed(registration);
-        var handler = new BeoordeelRegistratie(store, acl, TaskFor(registration), TimeProvider.System);
+        var handler = new BeoordeelRegistratie(store, acl, TaskFor(registration));
 
         await handler.HandleAsync(new BeoordeelRegistratieCommand(registration.Id, BeoordelingsBesluit.Goedkeuren));
         await handler.HandleAsync(new BeoordeelRegistratieCommand(registration.Id, BeoordelingsBesluit.Goedkeuren));
@@ -139,7 +139,7 @@ public class BeoordeelRegistratieTests
         var acl = new FakeAclClient();
         var registration = WithZaak();
         store.Seed(registration);
-        var handler = new BeoordeelRegistratie(store, acl, TaskFor(registration), TimeProvider.System);
+        var handler = new BeoordeelRegistratie(store, acl, TaskFor(registration));
 
         await handler.HandleAsync(new BeoordeelRegistratieCommand(registration.Id, BeoordelingsBesluit.Afwijzen));
         await handler.HandleAsync(new BeoordeelRegistratieCommand(registration.Id, BeoordelingsBesluit.Afwijzen));
@@ -158,7 +158,7 @@ public class BeoordeelRegistratieTests
         var registration = WithZaak();
         store.Seed(registration);
         var tasks = new FakeUserTaskClient([]); // no open task for this registration
-        var handler = new BeoordeelRegistratie(store, acl, tasks, TimeProvider.System);
+        var handler = new BeoordeelRegistratie(store, acl, tasks);
 
         await handler.HandleAsync(new BeoordeelRegistratieCommand(registration.Id, BeoordelingsBesluit.Goedkeuren));
 

services/domain/Big.Tests/Fakes.cs

@@ -22,15 +22,6 @@ internal sealed class FakeRegistrationStore : IRegistrationStore
     public Task<Registration?> GetAsync(RegistrationId id, CancellationToken ct = default)
         => Task.FromResult(_byId.GetValueOrDefault(id));
 
-    public Task<Registration?> FindOpenByBsnAsync(string bsn, CancellationToken ct = default)
-        => Task.FromResult(_byId.Values.FirstOrDefault(r =>
-            r.Bsn == bsn && r.Status is RegistrationStatus.Ingediend or RegistrationStatus.InBehandeling));
-
-    public Task<IReadOnlyList<Registration>> FindDueForHerregistratieReminderAsync(
-        DateTimeOffset asOf, CancellationToken ct = default)
-        => Task.FromResult<IReadOnlyList<Registration>>(
-            _byId.Values.Where(r => r.HerregistratieReminderDue(asOf)).ToList());
-
     public void Seed(Registration registration) => _byId[registration.Id] = registration;
 }
 
@@ -90,13 +81,6 @@ internal sealed class FakeUserTaskClient(IReadOnlyList<BeoordelingTask> open) :
     }
 }
 
-/// <summary>A <see cref="TimeProvider"/> pinned to a fixed instant, so time-based use cases (the
-/// herregistratie sweep, S-17) are deterministic without the TimeProvider.Testing package.</summary>
-internal sealed class FixedClock(DateTimeOffset now) : TimeProvider
-{
-    public override DateTimeOffset GetUtcNow() => now;
-}
-
 /// <summary>A fake ACL client that records the bsn it was asked to open a zaak for and returns a
 /// fixed zaak URL.</summary>
 internal sealed class FakeAclClient(Uri? zaakUrl = null) : IAclClient

services/domain/Big.Tests/HerregistratieReminderSweepTests.cs

@@ -1,67 +0,0 @@
-using Big.Application;
-using Big.Domain;
-
-namespace Big.Tests;
-
-// S-17 (#18): the sweep behind the Quartz job. It reminds every inscription whose herregistratie
-// reminder is due, marks each so a re-fire is a no-op (§8.6), and returns the reminded ids. Pure over
-// the store + an injected clock — no Quartz here.
-public class HerregistratieReminderSweepTests
-{
-    private static readonly DateTimeOffset Now = new(2026, 7, 23, 0, 0, 0, TimeSpan.Zero);
-
-    private static Registration Inscribed(string bsn, DateTimeOffset ingeschrevenOp)
-    {
-        var registration = Registration.Submit(bsn);
-        registration.AttachZaak(FakeAclClient.DefaultZaakUrl);
-        registration.Approve(ingeschrevenOp);
-        return registration;
-    }
-
-    // Inscribed exactly (geldigheid - herinneringstermijn) before Now: the reminder window is open.
-    private static Registration Due(string bsn)
-        => Inscribed(bsn, Now - Registration.HerregistratieGeldigheid + Registration.Herinneringstermijn);
-
-    [Fact]
-    public async Task Reminds_and_persists_every_due_inscription_and_returns_their_ids()
-    {
-        var store = new FakeRegistrationStore();
-        var a = Due("123456782");
-        var b = Due("111111110");
-        var freshlyInscribed = Inscribed("222222222", Now); // not yet in the window
-        store.Seed(a);
-        store.Seed(b);
-        store.Seed(freshlyInscribed);
-
-        var reminded = await new HerregistratieReminderSweep(store, new FixedClock(Now)).SweepAsync();
-
-        Assert.Equal(new HashSet<RegistrationId> { a.Id, b.Id }, reminded.ToHashSet());
-        Assert.True((await store.GetAsync(a.Id))!.HerregistratieReminderVerstuurd);
-        Assert.True((await store.GetAsync(b.Id))!.HerregistratieReminderVerstuurd);
-        Assert.False((await store.GetAsync(freshlyInscribed.Id))!.HerregistratieReminderVerstuurd);
-        Assert.Equal(2, store.SaveCount);
-    }
-
-    [Fact]
-    public async Task A_second_sweep_reminds_no_one_again()
-    {
-        var store = new FakeRegistrationStore();
-        store.Seed(Due("123456782"));
-        var sweep = new HerregistratieReminderSweep(store, new FixedClock(Now));
-
-        await sweep.SweepAsync();
-        var second = await sweep.SweepAsync();
-
-        Assert.Empty(second);
-        Assert.Equal(1, store.SaveCount); // only the first sweep persisted anything
-    }
-
-    [Fact]
-    public async Task Reminds_no_one_when_nothing_is_due()
-    {
-        var store = new FakeRegistrationStore();
-        store.Seed(Inscribed("123456782", Now)); // freshly inscribed — deadline is 5 years off
-
-        Assert.Empty(await new HerregistratieReminderSweep(store, new FixedClock(Now)).SweepAsync());
-    }
-}

services/domain/Big.Tests/InMemoryRegistrationStoreTests.cs

@@ -41,82 +41,4 @@ public class InMemoryRegistrationStoreTests
 
         await Assert.ThrowsAsync<ArgumentNullException>(() => store.SaveAsync(null!));
     }
-
-    [Fact]
-    public async Task Finds_the_open_registration_for_a_bsn()
-    {
-        var store = new InMemoryRegistrationStore();
-        var open = Registration.Submit("123456782");
-        await store.SaveAsync(open);
-
-        var found = await store.FindOpenByBsnAsync("123456782");
-
-        Assert.NotNull(found);
-        Assert.Equal(open.Id, found.Id);
-    }
-
-    [Fact]
-    public async Task An_in_behandeling_registration_is_still_open()
-    {
-        var store = new InMemoryRegistrationStore();
-        var registration = Registration.Submit("123456782");
-        registration.TakeIntoBehandeling();
-        await store.SaveAsync(registration);
-
-        Assert.NotNull(await store.FindOpenByBsnAsync("123456782"));
-    }
-
-    [Theory]
-    [InlineData(nameof(Registration.Withdraw))]
-    [InlineData(nameof(Registration.Approve))]
-    [InlineData(nameof(Registration.Reject))]
-    [InlineData(nameof(Registration.Expire))]
-    public async Task A_terminal_registration_is_not_returned_as_open(string transition)
-    {
-        var store = new InMemoryRegistrationStore();
-        var registration = Registration.Submit("123456782");
-        registration.AttachZaak(new Uri("http://openzaak/zaken/api/v1/zaken/abc")); // Approve requires an opened zaak
-        switch (transition)
-        {
-            case nameof(Registration.Withdraw): registration.Withdraw(); break;
-            case nameof(Registration.Approve): registration.Approve(DateTimeOffset.UtcNow); break;
-            case nameof(Registration.Reject): registration.Reject(); break;
-            case nameof(Registration.Expire): registration.Expire(); break;
-        }
-        await store.SaveAsync(registration);
-
-        Assert.Null(await store.FindOpenByBsnAsync("123456782"));
-    }
-
-    [Fact]
-    public async Task Does_not_return_another_bsns_registration_or_an_unknown_bsn()
-    {
-        var store = new InMemoryRegistrationStore();
-        await store.SaveAsync(Registration.Submit("111111110"));
-
-        Assert.Null(await store.FindOpenByBsnAsync("123456782"));
-    }
-
-    [Fact]
-    public async Task Finds_only_the_inscriptions_due_for_a_herregistratie_reminder()
-    {
-        var now = new DateTimeOffset(2026, 7, 23, 0, 0, 0, TimeSpan.Zero);
-        var store = new InMemoryRegistrationStore();
-
-        var due = Registration.Submit("123456782");
-        due.AttachZaak(new Uri("http://openzaak/zaken/api/v1/zaken/abc"));
-        due.Approve(now - Registration.HerregistratieGeldigheid + Registration.Herinneringstermijn);
-        await store.SaveAsync(due);
-
-        var freshlyInscribed = Registration.Submit("111111110");
-        freshlyInscribed.AttachZaak(new Uri("http://openzaak/zaken/api/v1/zaken/def"));
-        freshlyInscribed.Approve(now);
-        await store.SaveAsync(freshlyInscribed);
-
-        await store.SaveAsync(Registration.Submit("222222222")); // still INGEDIEND — never inscribed
-
-        var result = await store.FindDueForHerregistratieReminderAsync(now);
-
-        Assert.Equal([due.Id], result.Select(r => r.Id).ToArray());
-    }
 }

services/domain/Big.Tests/RegistrationHerregistratieTests.cs

@@ -1,90 +0,0 @@
-using Big.Domain;
-
-namespace Big.Tests;
-
-// S-17 (#18): a BIG inscription is valid for a fixed term; before it lapses the zorgprofessional must
-// herregistreren. The aggregate records when it was inscribed, derives the herregistratie deadline, and
-// answers whether a reminder is due as of a given moment — the single rule the Quartz sweep and the
-// store query both build on. All arithmetic is against an explicit "now" so it is wall-clock-free.
-public class RegistrationHerregistratieTests
-{
-    private static readonly DateTimeOffset Now = new(2026, 7, 23, 0, 0, 0, TimeSpan.Zero);
-
-    // The moment the reminder window opens: inscribed exactly (geldigheid - herinneringstermijn) ago.
-    private static DateTimeOffset InscribedSoDueAt(DateTimeOffset asOf)
-        => asOf - Registration.HerregistratieGeldigheid + Registration.Herinneringstermijn;
-
-    private static Registration Inscribed(DateTimeOffset ingeschrevenOp)
-    {
-        var registration = Registration.Submit("123456782");
-        registration.AttachZaak(FakeAclClient.DefaultZaakUrl);
-        registration.Approve(ingeschrevenOp);
-        return registration;
-    }
-
-    [Fact]
-    public void Approving_records_the_inscription_moment_and_the_herregistratie_deadline()
-    {
-        var registration = Inscribed(Now);
-
-        Assert.Equal(Now, registration.IngeschrevenOp);
-        Assert.Equal(Now + Registration.HerregistratieGeldigheid, registration.HerregistratieVoor);
-    }
-
-    [Fact]
-    public void A_reminder_is_due_the_moment_the_window_before_the_deadline_opens()
-    {
-        var registration = Inscribed(InscribedSoDueAt(Now));
-
-        Assert.True(registration.HerregistratieReminderDue(Now));
-    }
-
-    [Fact]
-    public void A_reminder_is_not_yet_due_one_day_before_the_window_opens()
-    {
-        var registration = Inscribed(InscribedSoDueAt(Now) + TimeSpan.FromDays(1));
-
-        Assert.False(registration.HerregistratieReminderDue(Now));
-    }
-
-    [Fact]
-    public void A_registration_that_is_not_ingeschreven_is_never_due_and_has_no_deadline()
-    {
-        var registration = Registration.Submit("123456782"); // INGEDIEND, never inscribed
-
-        Assert.Null(registration.IngeschrevenOp);
-        Assert.Null(registration.HerregistratieVoor);
-        Assert.False(registration.HerregistratieReminderDue(Now));
-    }
-
-    [Fact]
-    public void A_reminded_registration_is_no_longer_due()
-    {
-        var registration = Inscribed(InscribedSoDueAt(Now));
-
-        registration.MarkHerregistratieReminderVerstuurd();
-
-        Assert.True(registration.HerregistratieReminderVerstuurd);
-        Assert.False(registration.HerregistratieReminderDue(Now));
-    }
-
-    [Fact]
-    public void Marking_the_reminder_sent_twice_is_idempotent()
-    {
-        var registration = Inscribed(InscribedSoDueAt(Now));
-
-        registration.MarkHerregistratieReminderVerstuurd();
-        registration.MarkHerregistratieReminderVerstuurd();
-
-        Assert.True(registration.HerregistratieReminderVerstuurd);
-    }
-
-    [Fact]
-    public void Marking_a_reminder_on_a_registration_that_is_not_ingeschreven_is_rejected()
-    {
-        var registration = Registration.Submit("123456782");
-
-        var ex = Assert.Throws<InvalidOperationException>(() => registration.MarkHerregistratieReminderVerstuurd());
-        Assert.Contains("INGESCHREVEN", ex.Message);
-    }
-}

services/domain/Big.Tests/RegistrationTests.cs

@@ -4,9 +4,6 @@ namespace Big.Tests;
 
 public class RegistrationTests
 {
-    // A fixed inscription moment for the approval tests; its exact value is irrelevant to them.
-    private static readonly DateTimeOffset Ingeschreven = new(2026, 1, 1, 0, 0, 0, TimeSpan.Zero);
-
     [Fact]
     public void Submitting_a_registration_starts_in_ingediend()
     {
@@ -106,7 +103,7 @@ public class RegistrationTests
         var registration = Registration.Submit("123456782");
         registration.AttachZaak(new Uri("http://openzaak/zaken/api/v1/zaken/abc"));
 
-        registration.Approve(Ingeschreven);
+        registration.Approve();
 
         Assert.Equal(RegistrationStatus.Ingeschreven, registration.Status);
     }
@@ -116,7 +113,7 @@ public class RegistrationTests
     {
         var registration = Registration.Submit("123456782");
 
-        var ex = Assert.Throws<InvalidOperationException>(() => registration.Approve(Ingeschreven));
+        var ex = Assert.Throws<InvalidOperationException>(() => registration.Approve());
 
         Assert.Contains("no zaak", ex.Message, StringComparison.OrdinalIgnoreCase);
         Assert.Equal(RegistrationStatus.Ingediend, registration.Status);
@@ -127,9 +124,9 @@ public class RegistrationTests
     {
         var registration = Registration.Submit("123456782");
         registration.AttachZaak(new Uri("http://openzaak/zaken/api/v1/zaken/abc"));
-        registration.Approve(Ingeschreven);
+        registration.Approve();
 
-        var ex = Assert.Throws<InvalidOperationException>(() => registration.Approve(Ingeschreven));
+        var ex = Assert.Throws<InvalidOperationException>(() => registration.Approve());
         Assert.Contains("only an INGEDIEND", ex.Message);
         Assert.Equal(RegistrationStatus.Ingeschreven, registration.Status);
     }
@@ -160,7 +157,7 @@ public class RegistrationTests
     {
         var registration = Registration.Submit("123456782");
         registration.AttachZaak(new Uri("http://openzaak/zaken/api/v1/zaken/abc"));
-        registration.Approve(Ingeschreven);
+        registration.Approve();
 
         var ex = Assert.Throws<InvalidOperationException>(() => registration.TakeIntoBehandeling());
         Assert.Contains("only an INGEDIEND", ex.Message);
@@ -174,7 +171,7 @@ public class RegistrationTests
         registration.AttachZaak(new Uri("http://openzaak/zaken/api/v1/zaken/abc"));
         registration.TakeIntoBehandeling();
 
-        registration.Approve(Ingeschreven);
+        registration.Approve();
 
         Assert.Equal(RegistrationStatus.Ingeschreven, registration.Status);
     }
@@ -221,7 +218,7 @@ public class RegistrationTests
         var approveEx = Assert.Throws<InvalidOperationException>(() =>
         {
             registration.AttachZaak(new Uri("http://openzaak/zaken/api/v1/zaken/abc"));
-            registration.Approve(Ingeschreven);
+            registration.Approve();
         });
         Assert.Contains("IN_BEHANDELING", approveEx.Message);
 
@@ -280,7 +277,7 @@ public class RegistrationTests
     {
         var registration = Registration.Submit("123456782");
         registration.AttachZaak(new Uri("http://openzaak/zaken/api/v1/zaken/abc"));
-        registration.Approve(Ingeschreven);
+        registration.Approve();
 
         var ex = Assert.Throws<InvalidOperationException>(() => registration.Withdraw());
         Assert.Contains("only an INGEDIEND", ex.Message);
@@ -339,7 +336,7 @@ public class RegistrationTests
     {
         var registration = Registration.Submit("123456782");
         registration.AttachZaak(new Uri("http://openzaak/zaken/api/v1/zaken/abc"));
-        registration.Approve(Ingeschreven);
+        registration.Approve();
 
         var ex = Assert.Throws<InvalidOperationException>(() => registration.Expire());
         Assert.Contains("only an INGEDIEND", ex.Message);

services/domain/stryker-config.json

@@ -6,8 +6,7 @@
     "mutate": [
       "!**/OpenZaakJobPump.cs",
       "!**/BeoordelingEscalatiePump.cs",
-      "!**/RegistratieVerlopenPump.cs",
-      "!**/HerregistratieReminderJob.cs"
+      "!**/RegistratieVerlopenPump.cs"
     ],
     "thresholds": {
       "high": 95,

services/event-subscriber/EventSubscriber.Api/EventSubscriber.Api.csproj

@@ -5,14 +5,6 @@
     <ProjectReference Include="..\..\projection-api\Projection.ReadModel\Projection.ReadModel.csproj" />
   </ItemGroup>
 
-  <ItemGroup>
-    <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.17.0" />
-    <PackageReference Include="OpenTelemetry.Exporter.Prometheus.AspNetCore" Version="1.17.0-beta.1" />
-    <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.17.0" />
-    <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.17.0" />
-    <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.17.0" />
-  </ItemGroup>
-
   <PropertyGroup>
     <TargetFramework>net10.0</TargetFramework>
     <Nullable>enable</Nullable>

services/event-subscriber/EventSubscriber.Api/Program.cs

@@ -1,32 +1,9 @@
 using System.Text.Json;
 using EventSubscriber.Application;
-using OpenTelemetry.Metrics;
-using OpenTelemetry.Resources;
-using OpenTelemetry.Trace;
 using Projection.ReadModel;
 
 var builder = WebApplication.CreateBuilder(args);
 
-// OpenTelemetry tracing (S-16b, ADR-0023): auto-instrument the incoming NRC notification callback and
-// the outgoing ACL enrichment call, exported over OTLP to Tempo. Service name + OTLP endpoint come
-// from OTEL_* env (compose); the exporter no-ops when Tempo is unreachable.
-builder.Services.AddOpenTelemetry()
-    .ConfigureResource(r => r.AddService(
-        builder.Configuration["OTEL_SERVICE_NAME"] ?? builder.Environment.ApplicationName))
-    .WithTracing(tracing => tracing
-        .AddAspNetCoreInstrumentation(o => o.Filter = ctx => ctx.Request.Path != "/health")
-        .AddHttpClientInstrumentation()
-        .AddOtlpExporter())
-    // OpenTelemetry metrics (S-16c, ADR-0023): golden signals for the request path —
-    // http.server.request.duration (traffic/errors/latency) + http.client.* for downstream hops, plus
-    // the built-in System.Runtime meter for saturation (GC, CPU, thread pool). Prometheus scrapes these
-    // from /metrics (mapped below); metrics aren't pushed over OTLP, so no collector hop (ADR-0023).
-    .WithMetrics(metrics => metrics
-        .AddAspNetCoreInstrumentation()
-        .AddHttpClientInstrumentation()
-        .AddMeter("System.Runtime")
-        .AddPrometheusExporter());
-
 var connectionString = builder.Configuration.GetConnectionString("Projection")
     ?? throw new InvalidOperationException("Missing connection string 'ConnectionStrings:Projection'");
 // The exact Authorization header value Open Notificaties sends on each abonnement callback.
@@ -51,9 +28,6 @@ await app.Services.MigrateProjectionAsync();
 
 app.MapGet("/health", () => "Healthy");
 
-// Prometheus scrape endpoint (S-16c): exposes the OTel metrics above in Prometheus text format.
-app.MapPrometheusScrapingEndpoint();
-
 // The NRC abonnement callback. Open Notificaties POSTs a notification here; we project it.
 // Auth-on-callback is mandatory: the auth check runs *before* the body is read, so NRC's
 // registration probe (a POST without the configured Authorization, and without a valid

services/projection-api/ProjectionApi.Api/Program.cs

@@ -1,31 +1,8 @@
 using Microsoft.EntityFrameworkCore;
-using OpenTelemetry.Metrics;
-using OpenTelemetry.Resources;
-using OpenTelemetry.Trace;
 using Projection.ReadModel;
 
 var builder = WebApplication.CreateBuilder(args);
 
-// OpenTelemetry tracing (S-16b, ADR-0023): auto-instrument incoming ASP.NET Core requests, exported
-// over OTLP to Tempo, so a BFF → projection-api read is one connected trace. Service name + OTLP
-// endpoint come from OTEL_* env (compose); the exporter no-ops when Tempo is unreachable.
-builder.Services.AddOpenTelemetry()
-    .ConfigureResource(r => r.AddService(
-        builder.Configuration["OTEL_SERVICE_NAME"] ?? builder.Environment.ApplicationName))
-    .WithTracing(tracing => tracing
-        .AddAspNetCoreInstrumentation(o => o.Filter = ctx => ctx.Request.Path != "/health")
-        .AddHttpClientInstrumentation()
-        .AddOtlpExporter())
-    // OpenTelemetry metrics (S-16c, ADR-0023): golden signals for the request path —
-    // http.server.request.duration (traffic/errors/latency) + http.client.* for downstream hops, plus
-    // the built-in System.Runtime meter for saturation (GC, CPU, thread pool). Prometheus scrapes these
-    // from /metrics (mapped below); metrics aren't pushed over OTLP, so no collector hop (ADR-0023).
-    .WithMetrics(metrics => metrics
-        .AddAspNetCoreInstrumentation()
-        .AddHttpClientInstrumentation()
-        .AddMeter("System.Runtime")
-        .AddPrometheusExporter());
-
 var connectionString = builder.Configuration.GetConnectionString("Projection")
     ?? throw new InvalidOperationException("Missing connection string 'ConnectionStrings:Projection'");
 
@@ -40,9 +17,6 @@ await app.Services.MigrateProjectionAsync();
 
 app.MapGet("/health", () => "Healthy");
 
-// Prometheus scrape endpoint (S-16c): exposes the OTel metrics above in Prometheus text format.
-app.MapPrometheusScrapingEndpoint();
-
 // The read side of the projection. Public-safe field filtering is tightened in S-09; for now
 // the minimal projection only carries id + status (bsn/naam deferred — ADR-0008).
 app.MapGet("/register", async (ProjectionDbContext db, CancellationToken ct) =>

services/projection-api/ProjectionApi.Api/ProjectionApi.Api.csproj

@@ -4,14 +4,6 @@
     <ProjectReference Include="..\Projection.ReadModel\Projection.ReadModel.csproj" />
   </ItemGroup>
 
-  <ItemGroup>
-    <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.17.0" />
-    <PackageReference Include="OpenTelemetry.Exporter.Prometheus.AspNetCore" Version="1.17.0-beta.1" />
-    <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.17.0" />
-    <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.17.0" />
-    <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.17.0" />
-  </ItemGroup>
-
   <PropertyGroup>
     <TargetFramework>net10.0</TargetFramework>
     <Nullable>enable</Nullable>

tests/acceptance/Steps/EenRegistratieBeoordelenSteps.cs

@@ -40,7 +40,7 @@ public sealed class EenRegistratieBeoordelenSteps
 
     [When("the behandelaar decides \"(.*)\"")]
     public async Task WhenTheBehandelaarDecides(string besluit)
-        => await new BeoordeelRegistratie(_store, _acl, _tasks, TimeProvider.System).HandleAsync(
+        => await new BeoordeelRegistratie(_store, _acl, _tasks).HandleAsync(
             new BeoordeelRegistratieCommand(_id, Enum.Parse<BeoordelingsBesluit>(besluit, ignoreCase: true)));
 
     [Then("the registration has status \"(.*)\"")]

tests/acceptance/Steps/EenZaakOpenenSteps.cs

@@ -29,12 +29,9 @@ public sealed class EenZaakOpenenSteps
             Bronorganisatie = values["bronorganisatie"],
             VerantwoordelijkeOrganisatie = values["verantwoordelijkeOrganisatie"],
             Vertrouwelijkheidaanduiding = values["vertrouwelijkheidaanduiding"],
-            ZaaktypeIdentificatie = "BIG-REGISTRATIE",
-            InformatieobjecttypeOmschrijving = "Diploma",
+            ZaaktypeUrl = new Uri(values["zaaktype"]),
+            InformatieobjecttypeUrl = new Uri("http://openzaak/catalogi/api/v1/informatieobjecttypen/dip"),
         };
-        // The ACL resolves the zaaktype by identificatie (S-27); the scenario's zaaktype URL is what
-        // the catalogus resolves it to, so the created zaak still carries that URL.
-        _gateway.ResolvedZaaktypeUrl = new Uri(values["zaaktype"]);
     }
 
     [Given("today is \"(.*)\"")]
@@ -44,7 +41,7 @@ public sealed class EenZaakOpenenSteps
     [When("the domain asks the ACL to open a zaak")]
     public async Task WhenTheDomainAsksTheAclToOpenAZaak()
     {
-        var service = new AclService(_gateway, _defaults!, new CachedZaaktypeCatalog(_gateway, _defaults!), new FixedClock(_today));
+        var service = new AclService(_gateway, _defaults!, new FixedClock(_today));
         _returnedUrl = await service.OpenZaakAsync(_registration!);
     }
 

tests/acceptance/Support/BffAcceptanceHost.cs

@@ -69,9 +69,6 @@ public sealed class CapturingDomainClient : IDomainClient
         return Task.FromResult(new SubmitAccepted("reg-acc-1", "Ingediend"));
     }
 
-    public Task<CurrentRegistration?> GetCurrentRegistrationAsync(string bsn, CancellationToken ct = default)
-        => Task.FromResult<CurrentRegistration?>(null);
-
     public Task<bool> WithdrawRegistrationAsync(string registrationId, string bsn, CancellationToken ct = default)
         => Task.FromResult(true);
 

tests/acceptance/Support/InMemoryDomainPorts.cs

@@ -217,13 +217,4 @@ public sealed class InMemoryRegistrationStore : IRegistrationStore
 
     public Task<Registration?> GetAsync(RegistrationId id, CancellationToken ct = default)
         => Task.FromResult(_byId.GetValueOrDefault(id));
-
-    public Task<Registration?> FindOpenByBsnAsync(string bsn, CancellationToken ct = default)
-        => Task.FromResult(_byId.Values.FirstOrDefault(r =>
-            r.Bsn == bsn && r.Status is RegistrationStatus.Ingediend or RegistrationStatus.InBehandeling));
-
-    public Task<IReadOnlyList<Registration>> FindDueForHerregistratieReminderAsync(
-        DateTimeOffset asOf, CancellationToken ct = default)
-        => Task.FromResult<IReadOnlyList<Registration>>(
-            _byId.Values.Where(r => r.HerregistratieReminderDue(asOf)).ToList());
 }

tests/acceptance/Support/InMemoryZaakGateway.cs

@@ -14,11 +14,6 @@ public sealed class InMemoryZaakGateway : IZaakGateway
     public (Uri Zaak, Uri Zaaktype, DateOnly Datum)? Approved { get; private set; }
     public (Uri Zaak, Uri Zaaktype, DateOnly Datum)? Cancelled { get; private set; }
 
-    // The URLs the catalogus resolves the configured identificatie/omschrijving to (S-27); settable so
-    // a scenario can pin the zaaktype the ACL should default-fill.
-    public Uri ResolvedZaaktypeUrl { get; set; } = new("http://openzaak/catalogi/api/v1/zaaktypen/big");
-    public Uri ResolvedInformatieobjecttypeUrl { get; set; } = new("http://openzaak/catalogi/api/v1/informatieobjecttypen/dip");
-
     public Task<Uri> OpenZaakAsync(ZaakRequest request, CancellationToken ct = default)
     {
         Captured = request;
@@ -42,10 +37,4 @@ public sealed class InMemoryZaakGateway : IZaakGateway
 
     public Task<Uri> StoreDocumentAsync(DocumentRequest request, CancellationToken ct = default)
         => Task.FromResult(new Uri("http://openzaak/documenten/api/v1/enkelvoudiginformatieobjecten/acc-doc"));
-
-    public Task<Uri> ResolveZaaktypeUrlAsync(string identificatie, CancellationToken ct = default)
-        => Task.FromResult(ResolvedZaaktypeUrl);
-
-    public Task<Uri> ResolveInformatieobjecttypeUrlAsync(string omschrijving, CancellationToken ct = default)
-        => Task.FromResult(ResolvedInformatieobjecttypeUrl);
 }

tests/e2e/playwright.config.ts

@@ -12,12 +12,6 @@ export default defineConfig({
   timeout: 90_000,
   expect: { timeout: 15_000 },
   retries: 1,
-  // Run the specs serially. Each spec drives a full `channel: 'chromium'` browser, and the e2e
-  // shares an 8 GB runner with the entire compose stack (OpenZaak, NRC, Keycloak, Flowable, 4×
-  // Postgres, every service + 3 portals). Two parallel browsers exhaust memory and the renderer is
-  // OOM-killed mid-action ("Page crashed") — fixing the flakiness at its source rather than leaning
-  // on `retries` (CLAUDE.md §15). Only two long-running happy-path specs, so serial costs little.
-  workers: 1,
   reporter: [['list']],
   use: {
     baseURL,
@@ -32,13 +26,7 @@ export default defineConfig({
     // headless), not Playwright's default headless-shell, so pin `channel: 'chromium'`.
     channel: 'chromium',
     launchOptions: {
-      args: [
-        `--unsafely-treat-insecure-origin-as-secure=${baseURL},${behandelURL}`,
-        // Write Chromium's shared memory to /tmp instead of the container's small /dev/shm, so a
-        // large DOM/heap can't crash the renderer on the memory-constrained runner (belt-and-braces
-        // alongside the single worker above).
-        '--disable-dev-shm-usage',
-      ],
+      args: [`--unsafely-treat-insecure-origin-as-secure=${baseURL},${behandelURL}`],
     },
   },
   projects: [{ name: 'chromium', use: { ...devices['Desktop Chrome'] } }],

tests/e2e/registration.spec.ts

@@ -13,11 +13,8 @@ test('DigiD submit → public INGEDIEND → documenten → behandelaar goedkeurt
   // Visiting the guarded page redirects to the Keycloak (mock DigiD) login.
   await page.goto('/');
 
-  // Keycloak's default login form (stable ids across themes). Its own DigiD user: the verify-* API
-  // checks submit as jan-burger (bsn 123456782) before the e2e runs on the shared stack, and
-  // resume-on-load (S-26) would otherwise restore one of those on login — so each self-service spec
-  // uses a dedicated citizen no other actor touches.
-  await page.locator('#username').fill('emma-burger');
+  // Keycloak's default login form (stable ids across themes).
+  await page.locator('#username').fill('jan-burger');
   await page.locator('#password').fill('test123');
   await page.locator('#kc-login').click();
 

tests/e2e/resume.spec.ts

@@ -1,33 +0,0 @@
-import { expect, test } from '@playwright/test';
-
-// S-26: a zorgprofessional submits, then reloads the self-service portal. On load the portal asks the
-// BFF for the caller's current open registration (owner-scoped by the DigiD token's bsn) and restores
-// the submitted view — so a refresh no longer strands the in-flight registration and its actions.
-test('DigiD submit → reload → self-service restores the existing registration', async ({ page }) => {
-  await page.goto('/');
-
-  // Its own DigiD user (like every self-service spec): on the shared verify stack, resume-on-load
-  // (S-26) restores any open registration for the bsn, so each spec uses a dedicated citizen that no
-  // other spec or verify-* check touches. This one in particular leaves an open registration.
-  await page.locator('#username').fill('sanne-burger');
-  await page.locator('#password').fill('test123');
-  await page.locator('#kc-login').click();
-
-  await expect(page.getByRole('heading', { name: /Zelfservice/i })).toBeVisible();
-  await page.getByRole('button', { name: /indienen/i }).click();
-
-  const confirmation = page.getByText(/ontvangen/i);
-  await expect(confirmation).toBeVisible();
-  const reference = (await confirmation.textContent())?.match(/Referentie:\s*([0-9a-fA-F-]+)/)?.[1];
-  expect(reference, 'the confirmation shows a registration reference').toBeTruthy();
-
-  // Reload: the component's in-memory submitted state is gone, but the DigiD session persists and the
-  // portal resumes from the BFF instead of dropping back to the blank submit form.
-  await page.reload();
-
-  await expect(page.getByText(/ontvangen/i)).toBeVisible();
-  // The same reference the citizen saw before the reload is restored...
-  await expect(page.getByText(new RegExp(reference!))).toBeVisible();
-  // ...and its actions are reachable again (e.g. "trek aanvraag in").
-  await expect(page.getByRole('button', { name: /trek aanvraag in/i })).toBeVisible();
-});

tests/e2e/withdrawal.spec.ts

@@ -8,9 +8,7 @@ test('DigiD submit → trek aanvraag in → self-service confirms ingetrokken',
   // Visiting the guarded page redirects to the Keycloak (mock DigiD) login.
   await page.goto('/');
 
-  // Its own DigiD user — isolated from the verify-* checks (jan-burger/123456782) so resume-on-load
-  // (S-26) can't restore someone else's registration on the shared stack.
-  await page.locator('#username').fill('lars-burger');
+  await page.locator('#username').fill('jan-burger');
   await page.locator('#password').fill('test123');
   await page.locator('#kc-login').click();