docs(backlog): split S-00 into S-00-a..e (refs #1)

Mirror the S-00 split into the backlog: replace the single S-00 slice
with sub-slices S-00-a (BFF + health), S-00-b (Docker + compose + smoke),
S-00-c (Gitea Actions CI), S-00-d (contributor workflow), and S-00-e
(docs scaffold). Source of truth remains Gitea; #1 is closed by
tools/split-s00.sh with a comment pointing at the replacements.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

BACKLOG.md

@@ -12,22 +12,41 @@ Each slice is **independently demoable** and meets the Definition of Done in `CL
 
 ## Iteration 0 — Foundations *(milestone: `Iteration 0 — Foundations`)*
 
-### S-00 · Repository skeleton, Gitea Actions CI, contributor workflow
+> **S-00 was split** (CLAUDE.md §13) into the sub-slices below. The original
+> outcome — a fresh clone + `docker compose up` reaching a green BFF health
+> endpoint, with CI green and the contributor scaffolding in place — is the sum
+> of S-00-a…e. Milestones, labels, and the Iteration 1 population are already
+> done (see `tools/seed-gitea.sh`).
 
-**Outcome:** A fresh `git clone` from the Respellion Gitea remote, followed by `docker compose up`, produces a green "hello world" health endpoint from a placeholder BFF. Gitea Actions runs lint, build, unit tests, and the compose-up smoke test, all green. Issue templates, PR template, milestones, labels, and the first project board exist in Gitea.
+### S-00-a · Placeholder BFF + health endpoint
 
-**Acceptance:**
+**Outcome:** A minimal .NET BFF exposing `GET /health` returning green; runnable with `dotnet run`. TDD anchor for the slice.
 
-- New developer follows `README.md` and reaches a green local environment in under 10 minutes.
+**Touches:** `services/bff/`, tests. **Out of scope:** Docker, CI, OIDC.
-- Gitea Actions pipeline green on `main`.
-- `git-cliff` produces an empty `CHANGELOG.md`.
-- `docs/PRD.md`, `CLAUDE.md`, `BACKLOG.md`, `docs/architecture/adr-0001-loose-coupling.md`, `docs/gitea-workflow.md` all in repo.
-- `.gitea/workflows/ci.yaml`, `.gitea/ISSUE_TEMPLATE/{slice,bug,adr-proposal}.md`, `.gitea/PULL_REQUEST_TEMPLATE.md` all in repo.
-- Gitea milestone `Iteration 1 — Walking Skeleton` exists, populated with issues S-01 through S-09.
 
-**Touches:** repo layout, Gitea Actions workflows, Dockerfile for placeholder BFF, `docker-compose.yml` skeleton, MkDocs scaffold, Gitea issue/PR templates.
+### S-00-b · Dockerfile + compose skeleton + compose-up smoke
 
-**Out of scope:** any business logic, frontend, OpenZaak.
+**Outcome:** BFF containerized; `infra/docker-compose.yml` brings it up; health green within 3 minutes from a fresh clone.
+
+**Touches:** `services/bff/Dockerfile`, `infra/docker-compose.yml`, smoke script. **Out of scope:** other services, CI.
+
+### S-00-c · Gitea Actions CI (lint, build, unit, compose-up smoke)
+
+**Outcome:** `.gitea/workflows/ci.yaml` green on PRs and `main`: lint, build, unit, compose-up smoke. Actions pinned by absolute URL (§8.7/§15).
+
+**Touches:** `.gitea/workflows/ci.yaml`, `docs/runbooks/ci.md`. **Out of scope:** mutation, e2e, container push.
+
+### S-00-d · Contributor workflow: issue/PR templates, git-cliff, CHANGELOG
+
+**Outcome:** Issue templates (`slice`/`bug`/`adr-proposal`), PR template, `git-cliff` → empty `CHANGELOG.md`, `docs/gitea-workflow.md`.
+
+**Touches:** `.gitea/ISSUE_TEMPLATE/`, `.gitea/PULL_REQUEST_TEMPLATE.md`, `cliff.toml`, `CHANGELOG.md`, `docs/gitea-workflow.md`. **Out of scope:** app code.
+
+### S-00-e · Docs scaffold: MkDocs + ADR-0001 + README quickstart
+
+**Outcome:** MkDocs builds the `docs/` site; `docs/architecture/adr-0001-loose-coupling.md` exists; README has a sub-10-minute quickstart.
+
+**Touches:** `mkdocs.yml`, `docs/` nav, `docs/architecture/adr-0001-loose-coupling.md`, `README.md`. **Out of scope:** Gitea Pages publish.
 
 ---
 

tools/README.md

@@ -0,0 +1,54 @@
+# tools/
+
+Repo bootstrap and maintenance scripts. Not part of the application runtime.
+
+## `seed-gitea.sh` — bootstrap the Gitea backlog
+
+One-time (idempotent) script that creates the project's backlog in Gitea from the
+contents of [`BACKLOG.md`](../BACKLOG.md): the label taxonomy, the iteration
+milestones, and all 26 slice issues (`S-00`…`S-25`). Gitea is the system of record
+(see `CLAUDE.md` §7); this script just gets the empty repo to that starting state.
+
+It overlaps part of **S-00**'s acceptance ("milestones, labels … exist in Gitea").
+The authoritative operational write-up will move to `docs/runbooks/` and
+`docs/gitea-workflow.md` when S-00 is implemented.
+
+### Prerequisites
+
+- `curl` and `jq` on `PATH`.
+- A Gitea **personal access token** with scopes **`write:issue`** and
+  **`write:repository`** (Gitea → Settings → Applications → Generate New Token).
+
+### Usage
+
+```sh
+GITEA_TOKEN=<your-pat> bash tools/seed-gitea.sh
+```
+
+The token is read from the environment only — it is never written to disk or
+committed. The target repo (`eho/register-referentie` on
+`git.labs.respellion.tech`) is hard-coded near the top of the script; edit the
+`BASE`/`OWNER`/`REPO` variables to point elsewhere.
+
+### What it creates
+
+| Step | Items |
+|------|-------|
+| Labels | `type:{slice,bug,adr-proposal,chore}` + 12 `area:*` labels (16 total) |
+| Milestones | `Iteration 0 — Foundations` … `Iteration 6 — Production Posture` (7 total) |
+| Issues | `S-00`…`S-25` (26 total), each with body, milestone, and area labels |
+
+### Idempotency
+
+Every item is matched by name (labels), title (milestones), or issue title prefix
+(`S-NN · …`) before creation, and skipped if it already exists. A partial or failed
+run can be re-run safely — the second run reports every item as `skip`.
+
+### Verify (no token needed — reads are anonymous)
+
+```sh
+B=https://git.labs.respellion.tech/api/v1/repos/eho/register-referentie
+curl -s "$B/labels?limit=100"                  | jq length   # expect 16
+curl -s "$B/milestones?state=all&limit=100"    | jq length   # expect 7
+curl -s "$B/issues?state=all&type=issues&limit=100" | jq length   # expect 26
+```

tools/seed-gitea.sh

@@ -0,0 +1,430 @@
+#!/usr/bin/env bash
+#
+# seed-gitea.sh — populate the register-referentie Gitea repo with the backlog:
+#   1. label taxonomy   2. iteration milestones   3. all 26 slice issues (S-00..S-25)
+#
+# Idempotent: existing labels/milestones/issues (matched by name/title) are skipped,
+# so a partial or failed run can simply be re-run.
+#
+# Usage:
+#   GITEA_TOKEN=<pat> bash tools/seed-gitea.sh
+#
+# The token needs scopes: write:issue and write:repository (for labels + milestones).
+#
+set -euo pipefail
+
+: "${GITEA_TOKEN:?Set GITEA_TOKEN to a Gitea personal access token (scopes: write:issue, write:repository)}"
+
+BASE="https://git.labs.respellion.tech/api/v1"
+OWNER="eho"
+REPO="register-referentie"
+REPO_API="$BASE/repos/$OWNER/$REPO"
+
+AUTH=(-H "Authorization: token $GITEA_TOKEN")
+JSON=(-H "Content-Type: application/json" -H "Accept: application/json")
+
+say() { printf '%s\n' "$*"; }
+
+# ---------------------------------------------------------------------------
+# Preflight: confirm the token can see the repo.
+# ---------------------------------------------------------------------------
+code=$(curl -s -o /dev/null -w '%{http_code}' "${AUTH[@]}" "$REPO_API")
+if [ "$code" != "200" ]; then
+  say "ERROR: cannot access $OWNER/$REPO (HTTP $code). Check the token and its scopes."
+  exit 1
+fi
+say "Authenticated against $REPO_API"
+
+# ---------------------------------------------------------------------------
+# 1. Labels
+# ---------------------------------------------------------------------------
+say ""
+say "== Labels =="
+existing_labels=$(curl -s "${AUTH[@]}" "$REPO_API/labels?limit=100")
+
+create_label() {
+  local name="$1" color="$2"
+  if echo "$existing_labels" | jq -e --arg n "$name" 'any(.[]; .name == $n)' >/dev/null; then
+    say "  skip   $name"
+    return
+  fi
+  curl -s "${AUTH[@]}" "${JSON[@]}" -X POST "$REPO_API/labels" \
+    -d "$(jq -n --arg n "$name" --arg c "$color" '{name:$n, color:$c}')" >/dev/null
+  say "  create $name"
+}
+
+create_label "type:slice"        "#0e8a16"
+create_label "type:bug"          "#d73a4a"
+create_label "type:adr-proposal" "#5319e7"
+create_label "type:chore"        "#fbca04"
+for area in acl domain portal-self-service portal-openbaar portal-behandel \
+            portal-beheer infra workflow event-subscriber projection bff docs; do
+  create_label "area:$area" "#1d76db"
+done
+
+# ---------------------------------------------------------------------------
+# 2. Milestones
+# ---------------------------------------------------------------------------
+say ""
+say "== Milestones =="
+existing_ms=$(curl -s "${AUTH[@]}" "$REPO_API/milestones?state=all&limit=100")
+
+create_milestone() {
+  local title="$1"
+  if echo "$existing_ms" | jq -e --arg t "$title" 'any(.[]; .title == $t)' >/dev/null; then
+    say "  skip   $title"
+    return
+  fi
+  curl -s "${AUTH[@]}" "${JSON[@]}" -X POST "$REPO_API/milestones" \
+    -d "$(jq -n --arg t "$title" '{title:$t}')" >/dev/null
+  say "  create $title"
+}
+
+create_milestone "Iteration 0 — Foundations"
+create_milestone "Iteration 1 — Walking Skeleton"
+create_milestone "Iteration 2 — Flow Completeness"
+create_milestone "Iteration 3 — Beheer & Observability"
+create_milestone "Iteration 4 — Objecten"
+create_milestone "Iteration 5 — Data Governance"
+create_milestone "Iteration 6 — Production Posture"
+
+# Re-fetch labels + milestones so we have ids for issue creation.
+labels_json=$(curl -s "${AUTH[@]}" "$REPO_API/labels?limit=100")
+milestones_json=$(curl -s "${AUTH[@]}" "$REPO_API/milestones?state=all&limit=100")
+existing_issues=$(curl -s "${AUTH[@]}" "$REPO_API/issues?state=all&type=issues&limit=100")
+
+# Definition of Done checklist appended to every slice body (CLAUDE.md §3).
+DOD=$(cat <<'EOF'
+
+## Definition of Done
+
+- [ ] A linked Gitea issue exists (this one).
+- [ ] Failing test written and committed first.
+- [ ] Implementation makes the test pass.
+- [ ] Refactor commit follows if structure improved.
+- [ ] Conventional Commit messages referencing this issue (`refs #NN`).
+- [ ] All Gitea Actions CI jobs green: lint, unit, integration, mutation (ratchet), e2e, container build + push, compose-up smoke test.
+- [ ] `docker compose up` from a fresh clone reaches green health checks within 3 minutes.
+- [ ] Docs touched if behaviour, contracts, or operations changed.
+- [ ] ADR added in `docs/architecture/` if a non-obvious decision was made.
+- [ ] Demo note appended to `docs/demo-script.md` if the slice is user-visible.
+- [ ] This issue closed by the merging PR (`closes #NN`).
+EOF
+)
+
+# ---------------------------------------------------------------------------
+# 3. Issues
+# ---------------------------------------------------------------------------
+say ""
+say "== Issues =="
+
+create_issue() {
+  local title="$1" milestone="$2" labels_csv="$3" body="$4"
+
+  if echo "$existing_issues" | jq -e --arg t "$title" 'any(.[]; .title == $t)' >/dev/null; then
+    say "  skip   $title"
+    return
+  fi
+
+  local ms_id
+  ms_id=$(echo "$milestones_json" | jq -r --arg m "$milestone" '.[] | select(.title == $m) | .id')
+  if [ -z "$ms_id" ]; then
+    say "  ERROR  milestone not found: $milestone (issue: $title)"
+    exit 1
+  fi
+
+  local want label_ids
+  want=$(printf '%s' "$labels_csv" | jq -R 'split(",")')
+  label_ids=$(echo "$labels_json" | jq -c --argjson want "$want" \
+    '[ .[] | select(.name as $n | $want | index($n)) | .id ]')
+
+  local full_body="${body}${DOD}"
+
+  local payload
+  payload=$(jq -n --arg t "$title" --arg b "$full_body" \
+    --argjson ms "$ms_id" --argjson ls "$label_ids" \
+    '{title:$t, body:$b, milestone:$ms, labels:$ls}')
+
+  curl -s "${AUTH[@]}" "${JSON[@]}" -X POST "$REPO_API/issues" -d "$payload" >/dev/null
+  say "  create $title"
+}
+
+# ---- Iteration 0 ----------------------------------------------------------
+create_issue "S-00 · Repository skeleton, Gitea Actions CI, contributor workflow" \
+  "Iteration 0 — Foundations" "type:slice,area:infra,area:docs" "$(cat <<'EOF'
+**Outcome:** A fresh `git clone` from the Respellion Gitea remote, followed by `docker compose up`, produces a green "hello world" health endpoint from a placeholder BFF. Gitea Actions runs lint, build, unit tests, and the compose-up smoke test, all green. Issue templates, PR template, milestones, labels, and the first project board exist in Gitea.
+
+**Acceptance:**
+
+- New developer follows `README.md` and reaches a green local environment in under 10 minutes.
+- Gitea Actions pipeline green on `main`.
+- `git-cliff` produces an empty `CHANGELOG.md`.
+- `docs/PRD.md`, `CLAUDE.md`, `BACKLOG.md`, `docs/architecture/adr-0001-loose-coupling.md`, `docs/gitea-workflow.md` all in repo.
+- `.gitea/workflows/ci.yaml`, `.gitea/ISSUE_TEMPLATE/{slice,bug,adr-proposal}.md`, `.gitea/PULL_REQUEST_TEMPLATE.md` all in repo.
+- Gitea milestone `Iteration 1 — Walking Skeleton` exists, populated with issues S-01 through S-09.
+
+**Touches:** repo layout, Gitea Actions workflows, Dockerfile for placeholder BFF, `docker-compose.yml` skeleton, MkDocs scaffold, Gitea issue/PR templates.
+
+**Out of scope:** any business logic, frontend, OpenZaak.
+EOF
+)"
+
+# ---- Iteration 1 ----------------------------------------------------------
+create_issue "S-01 · OpenZaak + Open Notificaties + Postgres come up in compose" \
+  "Iteration 1 — Walking Skeleton" "type:slice,area:infra" "$(cat <<'EOF'
+**Outcome:** Local `docker compose up` brings up OpenZaak, Open Notificaties, their dependencies, and a seeded ZTC catalogus called `BIG`. A health check confirms all reachable.
+
+**Acceptance:**
+
+- `curl` to OpenZaak `/zaken/api/v1/` returns 401 (auth working).
+- A test client with a generated JWT can list zaaktypen in the `BIG` catalogus.
+- The seeded catalogus contains one lean `BIG-registratie` zaaktype with only the schema-mandatory fields plus `bsn` as an eigenschap.
+
+**Touches:** `infra/openzaak/`, `infra/opennotificaties/`, `infra/seed/`, ADR for catalogus design.
+
+**Out of scope:** any portal, BFF, Flowable, ACL code.
+EOF
+)"
+
+create_issue "S-02 · Keycloak with mock DigiD, eHerkenning, eIDAS, medewerker realms" \
+  "Iteration 1 — Walking Skeleton" "type:slice,area:infra" "$(cat <<'EOF'
+**Outcome:** Keycloak runs locally with four realms pre-seeded. Each realm has 1–2 test users with known credentials documented in `docs/synthetic-data.md`.
+
+**Acceptance:**
+
+- Browser-based OIDC login flow works for each realm against a placeholder client.
+- Mock DigiD realm returns a BSN claim; eHerkenning returns a KvK; eIDAS returns a foreign identifier; medewerker returns role claims.
+
+**Touches:** `infra/keycloak/`, seed scripts.
+
+**Out of scope:** real federation, MFA.
+EOF
+)"
+
+create_issue "S-03 · Flowable up with a minimal BPMN: \"Registratie ontvangen\"" \
+  "Iteration 1 — Walking Skeleton" "type:slice,area:infra,area:workflow" "$(cat <<'EOF'
+**Outcome:** Flowable runs locally with Postgres. A single BPMN model (`registratie.bpmn`) deployed with one start event, one external task `OpenZaakAanmaken`, one end event.
+
+**Acceptance:**
+
+- BPMN model deployed via Flowable's REST API on container start.
+- An HTTP call can start a process instance and observe it waiting on the external task.
+
+**Touches:** `infra/flowable/`, `workflows/registratie.bpmn`.
+
+**Out of scope:** DMN, boundary timers, second model.
+EOF
+)"
+
+create_issue "S-04 · ACL skeleton with one operation: open a zaak" \
+  "Iteration 1 — Walking Skeleton" "type:slice,area:acl" "$(cat <<'EOF'
+**Outcome:** A .NET library + service that exposes one method: `OpenZaak(domainPayload) → zaakUrl`. It default-fills `bronorganisatie`, `verantwoordelijkeOrganisatie`, `startdatum`, `vertrouwelijkheidaanduiding`, and posts to OpenZaak. **Strict TDD throughout.**
+
+**Acceptance:**
+
+- BDD scenario: "Given a domain registration payload, when I call the ACL, then a zaak exists in OpenZaak with the default-filled fields."
+- Mutation score baseline captured and enforced by the Gitea Actions pipeline.
+- Integration test using Testcontainers against real OpenZaak passes.
+
+**Touches:** `services/acl/`, tests, ADR for default-fill strategy.
+
+**Out of scope:** all other ZGW operations, status transitions, documents.
+EOF
+)"
+
+create_issue "S-05 · BIG Domain Service skeleton with the Registration aggregate" \
+  "Iteration 1 — Walking Skeleton" "type:slice,area:domain" "$(cat <<'EOF'
+**Outcome:** A .NET service exposing a single endpoint `POST /registrations`. The Registration aggregate has a state machine with at minimum `INGEDIEND`. The service orchestrates: start a Flowable process → external task callback executes the ACL `OpenZaak` → zaak URL stored on the aggregate.
+
+**Acceptance:**
+
+- BDD scenario: "Given a zorgprofessional submits a registration, when the domain service receives it, then a Flowable process is started and a zaak is opened in OpenZaak."
+- Integration test exercises the full path (no real frontend yet).
+- The Workflow Client is the only code that calls Flowable.
+
+**Touches:** `services/domain/`, `services/acl/` (consumed), tests, ADR for external-task job-worker pattern.
+
+**Out of scope:** any other use case, documents, decisions.
+EOF
+)"
+
+create_issue "S-06 · Event Subscriber + Read Projection (minimal)" \
+  "Iteration 1 — Walking Skeleton" "type:slice,area:event-subscriber,area:projection" "$(cat <<'EOF'
+**Outcome:** An NRC webhook consumer that, on `zaak.gecreeerd`, writes a row to a `register_projection` table with `id`, `bsn`, `naam_placeholder`, `status`. Idempotent. Rebuildable.
+
+**Acceptance:**
+
+- BDD scenario: "Given a zaak is created in OpenZaak, when the NRC event is delivered, then the projection contains a row with status INGEDIEND."
+- Replaying the same event twice does not create duplicates.
+- A `projection rebuild` admin command repopulates from OpenZaak.
+
+**Touches:** `services/event-subscriber/`, `services/projection-api/`, tests.
+
+**Out of scope:** decision events, multiple projections, public-safe field filtering (will tighten in S-09).
+EOF
+)"
+
+create_issue "S-07 · BFF with one endpoint per portal + OIDC validation" \
+  "Iteration 1 — Walking Skeleton" "type:slice,area:bff" "$(cat <<'EOF'
+**Outcome:** A .NET BFF exposing four endpoint groups (one per portal). Validates tokens issued by Keycloak. Implements the minimum needed for the walking skeleton: `POST /self-service/registrations`, `GET /openbaar/register?q=...`.
+
+**Acceptance:**
+
+- BDD scenarios cover the two endpoints with valid and invalid tokens.
+- OpenAPI spec generated and committed.
+
+**Touches:** `services/bff/`, OpenAPI spec, tests.
+
+**Out of scope:** behandelaar and beheer endpoints (later slices).
+EOF
+)"
+
+create_issue "S-08 · Self-Service portal (Angular, NL DS) — submit a registration" \
+  "Iteration 1 — Walking Skeleton" "type:slice,area:portal-self-service" "$(cat <<'EOF'
+**Outcome:** The self-service Angular app, in the Nx monorepo, lets a zorgprofessional log in via mock DigiD and submit a registration. NL Design System styling. Generated API client.
+
+**Acceptance:**
+
+- E2E test (Playwright): full happy path, login → submit → success page.
+- Component tests (Testing Library) for the form.
+- Accessibility audit (axe-core) passes WCAG 2.1 AA on the submit page.
+
+**Touches:** `apps/self-service/`, `libs/ui/`, `libs/auth/`, `libs/api-client/`, tests.
+
+**Out of scope:** document upload, status tracking page.
+EOF
+)"
+
+create_issue "S-09 · Openbaar Register portal — public lookup" \
+  "Iteration 1 — Walking Skeleton" "type:slice,area:portal-openbaar,area:projection" "$(cat <<'EOF'
+**Outcome:** The openbaar Angular app shows a search box. Anonymous. Queries the BFF's `/openbaar/register` which reads only the projection's **public-safe** fields. Confirms the walking skeleton end-to-end.
+
+**Acceptance:**
+
+- E2E test: zorgprofessional registers via self-service (S-08), behandelaar approves via a temporary admin endpoint (no behandel-portal yet), openbaar register shows the entry.
+- Public-safe field whitelist enforced and tested.
+
+**Touches:** `apps/openbaar/`, projection-api hardening, tests.
+
+**Out of scope:** advanced search filters, sorting.
+
+_End of walking skeleton. Demo: submit → process → projection → public visibility. All CI gates green on Gitea Actions. Cut release `vYYYY.MM.0` and publish via Gitea Releases._
+EOF
+)"
+
+# ---- Iteration 2 ----------------------------------------------------------
+create_issue "S-10 · Document upload + boundary timer for document timeout (Flow 2)" \
+  "Iteration 2 — Flow Completeness" "type:slice,area:workflow,area:portal-self-service" "$(cat <<'EOF'
+**Outcome:** BPMN extended with a "wacht op documenten" user task with a 30-day boundary timer. Self-service portal supports diploma upload. On timeout the case is cancelled.
+
+**Acceptance:** BDD scenarios for both branches; integration tests for the timer firing.
+EOF
+)"
+
+create_issue "S-11 · Withdrawal (Flow 3)" \
+  "Iteration 2 — Flow Completeness" "type:slice,area:portal-self-service,area:domain,area:workflow" "$(cat <<'EOF'
+**Outcome:** Self-service portal has a "trek aanvraag in" action. Domain service issues a withdraw command; BPMN message event correlates; case cancels with audit trail.
+EOF
+)"
+
+create_issue "S-12 · Behandel-portal — werkbak + beoordeling" \
+  "Iteration 2 — Flow Completeness" "type:slice,area:portal-behandel,area:workflow" "$(cat <<'EOF'
+**Outcome:** Behandel portal with login (medewerker realm), werkbak listing INGEDIEND/IN_BEHANDELING cases, claim and complete user tasks via Flowable, decision endpoint via Domain Service.
+
+**Acceptance:** BDD scenarios for claim, complete, request additional document, decide.
+EOF
+)"
+
+create_issue "S-13 · DMN decision: diploma eligibility (Flow 4)" \
+  "Iteration 2 — Flow Completeness" "type:slice,area:workflow,area:domain" "$(cat <<'EOF'
+**Outcome:** A DMN decision table evaluated by the Domain Service via Workflow Client. Foreign diplomas route to an extra "CBGV-advies" user task in BPMN.
+
+**Acceptance:** BDD scenarios for domestic and foreign diploma paths; DMN evaluated separately is unit-tested.
+EOF
+)"
+
+create_issue "S-14 · Beoordeling escalation (Flow 5)" \
+  "Iteration 2 — Flow Completeness" "type:slice,area:workflow" "$(cat <<'EOF'
+**Outcome:** Boundary timer on beoordeling user task — 14 days. On timeout, reassigns to a teamlead role.
+EOF
+)"
+
+# ---- Iteration 3 ----------------------------------------------------------
+create_issue "S-15 · Beheer-portal — catalogus & default-fill rules" \
+  "Iteration 3 — Beheer & Observability" "type:slice,area:portal-beheer,area:acl" "$(cat <<'EOF'
+**Outcome:** Beheer portal lets an admin view ZTC catalogi (read-only first), and manage the ACL's default-fill configuration via a CRUD UI. MFA on the medewerker realm enforced.
+EOF
+)"
+
+create_issue "S-16 · OpenTelemetry traces + Grafana dashboard" \
+  "Iteration 3 — Beheer & Observability" "type:slice,area:infra" "$(cat <<'EOF'
+**Outcome:** Traces span portal → BFF → Domain → ACL → OpenZaak and portal → BFF → Domain → Flowable. Grafana dashboards pre-built for golden signals.
+EOF
+)"
+
+create_issue "S-17 · Quartz.NET scheduler — herregistratie reminder sweep" \
+  "Iteration 3 — Beheer & Observability" "type:slice,area:domain" "$(cat <<'EOF'
+**Outcome:** Nightly job that finds entries within 90 days of expiry and emits a domain event. (No outbound notification in v1 — logged.)
+EOF
+)"
+
+# ---- Iteration 4 ----------------------------------------------------------
+create_issue "S-18 · Objecten + Objecttypen up in compose; Register objecttype defined" \
+  "Iteration 4 — Objecten" "type:slice,area:infra" "$(cat <<'EOF'
+**Outcome:** Objecten and Objecttypen running. A `RegisterRecord` objecttype defined with the public-safe schema.
+EOF
+)"
+
+create_issue "S-19 · ACL extension: write register-record to Objecten on approval" \
+  "Iteration 4 — Objecten" "type:slice,area:acl,area:projection" "$(cat <<'EOF'
+**Outcome:** Approval path writes the canonical register record to Objecten, not OpenZaak eigenschappen. Projection now sourced from Objecten events.
+
+**ADR required:** "Why Objecten holds the register, OpenZaak holds the process."
+EOF
+)"
+
+# ---- Iteration 5 ----------------------------------------------------------
+create_issue "S-20 · OpenMetadata module + seed bundle deployed alongside" \
+  "Iteration 5 — Data Governance" "type:slice,area:infra" "$(cat <<'EOF'
+**Outcome:** OpenMetadata stack runs as a separate compose file (`infra/governance/`). Seed bundle loaded: glossary, classification taxonomy, roles, default DQ tests.
+EOF
+)"
+
+create_issue "S-21 · Read-replica ingestion + API ingestion" \
+  "Iteration 5 — Data Governance" "type:slice,area:infra" "$(cat <<'EOF'
+**Outcome:** Postgres read replicas of domain, Flowable, projection. OpenMetadata ingestion connectors discover schemas. API connector ingests OpenZaak and Objecten via OpenAPI.
+EOF
+)"
+
+create_issue "S-22 · Lineage SDK (.NET) + lineage assertions across the personal-data path" \
+  "Iteration 5 — Data Governance" "type:slice,area:acl,area:event-subscriber,area:domain" "$(cat <<'EOF'
+**Outcome:** A thin .NET package wrapping OpenMetadata's lineage API, published to the **Gitea Packages** registry. ACL, Event Subscriber, and Domain Service call it as personal data flows. Each lineage edge carries purpose and legal basis.
+
+**ADR required:** "Lineage as a property of code, not docs."
+EOF
+)"
+
+create_issue "S-23 · GDPR reporting cookbook" \
+  "Iteration 5 — Data Governance" "type:slice,area:docs" "$(cat <<'EOF'
+**Outcome:** `docs/gdpr-reporting.md` showing how to answer specific AVG questions using OpenMetadata (data subject request, processing register, lineage trace).
+EOF
+)"
+
+# ---- Iteration 6 ----------------------------------------------------------
+create_issue "S-24 · Helm chart (sketch) + Kubernetes manifests for the platform" \
+  "Iteration 6 — Production Posture" "type:slice,area:infra" "$(cat <<'EOF'
+**Outcome:** A non-deployed-but-reviewable Helm chart and accompanying ADR on production posture. Documents HA, secrets, backup, observability, identity wiring.
+EOF
+)"
+
+create_issue "S-25 · Runbook completeness review" \
+  "Iteration 6 — Production Posture" "type:slice,area:docs" "$(cat <<'EOF'
+**Outcome:** All runbooks complete: startup, seed, common failures, upgrade upstream modules, restore from backup, rotate secrets, Gitea Actions gotchas.
+EOF
+)"
+
+say ""
+say "Done. Verify counts (no token needed):"
+say "  curl -s '$REPO_API/labels?limit=100' | jq length        # expect 16"
+say "  curl -s '$REPO_API/milestones?state=all&limit=100' | jq length   # expect 7"
+say "  curl -s '$REPO_API/issues?state=all&type=issues&limit=100' | jq length   # expect 26"

tools/split-s00.sh

@@ -0,0 +1,202 @@
+#!/usr/bin/env bash
+#
+# split-s00.sh — one-off: split issue S-00 (#1) into sub-slices S-00-a..e per
+# CLAUDE.md §13. Creates the five sub-slice issues, then closes #1 with a
+# comment listing the replacements.
+#
+# Idempotent: sub-slices already present (matched by title) are skipped; the
+# closing comment is posted once (guarded by a marker); #1 is closed only if open.
+#
+# Usage:
+#   GITEA_TOKEN=<pat> bash tools/split-s00.sh
+#
+# Token scopes: write:issue.
+#
+set -euo pipefail
+
+: "${GITEA_TOKEN:?Set GITEA_TOKEN to a Gitea personal access token (scope: write:issue)}"
+
+BASE="https://git.labs.respellion.tech/api/v1"
+OWNER="eho"
+REPO="register-referentie"
+REPO_API="$BASE/repos/$OWNER/$REPO"
+PARENT=1                        # S-00 issue number
+MARKER="<!-- split-s00 -->"
+
+AUTH=(-H "Authorization: token $GITEA_TOKEN")
+JSON=(-H "Content-Type: application/json" -H "Accept: application/json")
+say() { printf '%s\n' "$*"; }
+
+code=$(curl -s -o /dev/null -w '%{http_code}' "${AUTH[@]}" "$REPO_API")
+[ "$code" = "200" ] || { say "ERROR: cannot access $OWNER/$REPO (HTTP $code)."; exit 1; }
+say "Authenticated against $REPO_API"
+
+labels_json=$(curl -s "${AUTH[@]}" "$REPO_API/labels?limit=100")
+milestones_json=$(curl -s "${AUTH[@]}" "$REPO_API/milestones?state=all&limit=100")
+existing_issues=$(curl -s "${AUTH[@]}" "$REPO_API/issues?state=all&type=issues&limit=100")
+
+MILESTONE="Iteration 0 — Foundations"
+
+DOD=$(cat <<'EOF'
+
+## Definition of Done
+
+- [ ] A linked Gitea issue exists (this one).
+- [ ] Failing test written and committed first.
+- [ ] Implementation makes the test pass.
+- [ ] Refactor commit follows if structure improved.
+- [ ] Conventional Commit messages referencing this issue (`refs #NN`).
+- [ ] All Gitea Actions CI jobs green.
+- [ ] `docker compose up` from a fresh clone reaches green health checks within 3 minutes.
+- [ ] Docs touched if behaviour, contracts, or operations changed.
+- [ ] ADR added in `docs/architecture/` if a non-obvious decision was made.
+- [ ] This issue closed by the merging PR (`closes #NN`).
+EOF
+)
+
+create_issue() {
+  local title="$1" labels_csv="$2" body="$3"
+  if echo "$existing_issues" | jq -e --arg t "$title" 'any(.[]; .title == $t)' >/dev/null; then
+    say "  skip   $title"
+    return
+  fi
+  local ms_id; ms_id=$(echo "$milestones_json" | jq -r --arg m "$MILESTONE" '.[] | select(.title == $m) | .id')
+  local want label_ids
+  want=$(printf '%s' "$labels_csv" | jq -R 'split(",")')
+  label_ids=$(echo "$labels_json" | jq -c --argjson want "$want" '[ .[] | select(.name as $n | $want | index($n)) | .id ]')
+  local payload
+  payload=$(jq -n --arg t "$title" --arg b "${body}${DOD}" --argjson ms "$ms_id" --argjson ls "$label_ids" \
+    '{title:$t, body:$b, milestone:$ms, labels:$ls}')
+  curl -s "${AUTH[@]}" "${JSON[@]}" -X POST "$REPO_API/issues" -d "$payload" >/dev/null
+  say "  create $title"
+}
+
+say ""
+say "== Sub-slice issues =="
+
+create_issue "S-00-a · Placeholder BFF + health endpoint" \
+  "type:slice,area:bff" "$(cat <<'EOF'
+**Outcome:** A minimal .NET BFF service exposing `GET /health` that returns a green (`Healthy`) status. Runnable with `dotnet run`.
+
+**Acceptance:**
+
+- A failing xUnit test asserts `GET /health` returns 200 with a `Healthy` payload (red commit first).
+- Implementation makes it pass; `dotnet run` then `curl /health` returns `Healthy`.
+- Project follows the §9 layering seed (minimal `Api` project; `Application`/`Domain` added as they earn their place).
+
+**Touches:** `services/bff/`, tests.
+
+**Out of scope:** Docker, CI, OIDC, any real endpoints.
+
+_Split from #1 (S-00) per CLAUDE.md §13._
+EOF
+)"
+
+create_issue "S-00-b · Dockerfile + compose skeleton + compose-up smoke" \
+  "type:slice,area:bff,area:infra" "$(cat <<'EOF'
+**Outcome:** The BFF is containerized and `infra/docker-compose.yml` brings it up; health goes green within 3 minutes from a fresh clone.
+
+**Acceptance:**
+
+- `docker build` of the BFF image succeeds.
+- `docker compose up` brings the BFF to a healthy state; a compose-up smoke script curls `/health` and passes.
+- README documents the `docker compose up` path.
+
+**Touches:** `services/bff/Dockerfile`, `infra/docker-compose.yml`, smoke script.
+
+**Out of scope:** other services; CI wiring (S-00-c).
+
+_Split from #1 (S-00) per CLAUDE.md §13._
+EOF
+)"
+
+create_issue "S-00-c · Gitea Actions CI (lint, build, unit, compose-up smoke)" \
+  "type:slice,area:infra" "$(cat <<'EOF'
+**Outcome:** `.gitea/workflows/ci.yaml` runs on PRs and `main` with lint, build, unit tests, and the compose-up smoke test — all green.
+
+**Acceptance:**
+
+- Pipeline green on the branch.
+- Jobs: lint, build, unit, compose-up smoke. `uses:` references are absolute URLs pinned to a tag (CLAUDE.md §8.7 / §15).
+- Self-hosted runner label documented in `docs/runbooks/ci.md`.
+
+**Touches:** `.gitea/workflows/ci.yaml`, `docs/runbooks/ci.md`.
+
+**Out of scope:** mutation, e2e, container build + push (later slices).
+
+_Split from #1 (S-00) per CLAUDE.md §13._
+EOF
+)"
+
+create_issue "S-00-d · Contributor workflow: issue/PR templates, git-cliff, CHANGELOG" \
+  "type:slice,area:docs,area:infra" "$(cat <<'EOF'
+**Outcome:** Issue templates (`slice`/`bug`/`adr-proposal`), a PR template enforcing the DoD checklist, a `git-cliff` config producing an (empty) `CHANGELOG.md`, and `docs/gitea-workflow.md`.
+
+**Acceptance:**
+
+- `.gitea/ISSUE_TEMPLATE/{slice,bug,adr-proposal}.md` and `.gitea/PULL_REQUEST_TEMPLATE.md` present; opening a new issue offers the templates.
+- `cliff.toml` present; `git-cliff` generates `CHANGELOG.md`.
+- `docs/gitea-workflow.md` documents the issue → milestone → PR flow.
+
+**Touches:** `.gitea/ISSUE_TEMPLATE/`, `.gitea/PULL_REQUEST_TEMPLATE.md`, `cliff.toml`, `CHANGELOG.md`, `docs/gitea-workflow.md`.
+
+**Out of scope:** app code.
+
+_Split from #1 (S-00) per CLAUDE.md §13._
+EOF
+)"
+
+create_issue "S-00-e · Docs scaffold: MkDocs + ADR-0001 + README quickstart" \
+  "type:slice,area:docs" "$(cat <<'EOF'
+**Outcome:** MkDocs Material builds the `docs/` site; `docs/architecture/adr-0001-loose-coupling.md` exists as the ADR template; README gains a sub-10-minute quickstart.
+
+**Acceptance:**
+
+- `mkdocs build` succeeds (`mkdocs.yml` + nav).
+- `adr-0001-loose-coupling.md` present, Nygard template.
+- A new developer following `README.md` reaches a green local environment in under 10 minutes.
+
+**Touches:** `mkdocs.yml`, `docs/` nav, `docs/architecture/adr-0001-loose-coupling.md`, `README.md`.
+
+**Out of scope:** Gitea Pages publish workflow (later).
+
+_Split from #1 (S-00) per CLAUDE.md §13._
+EOF
+)"
+
+# --- Close #1 with a comment listing the replacements -----------------------
+say ""
+say "== Close parent #1 =="
+
+# Resolve the numbers of the sub-slices we now have.
+all_issues=$(curl -s "${AUTH[@]}" "$REPO_API/issues?state=all&type=issues&limit=100")
+refs=$(echo "$all_issues" | jq -r '
+  [ .[] | select(.title | startswith("S-00-")) ]
+  | sort_by(.title)
+  | map("- #\(.number) — \(.title)")
+  | join("\n")')
+
+comments=$(curl -s "${AUTH[@]}" "$REPO_API/issues/$PARENT/comments?limit=100")
+if echo "$comments" | jq -e --arg m "$MARKER" 'any(.[]; .body | contains($m))' >/dev/null; then
+  say "  skip   split comment (already posted)"
+else
+  body="$MARKER
+Split into sub-slices per CLAUDE.md §13. Replacement issues:
+
+$refs"
+  curl -s "${AUTH[@]}" "${JSON[@]}" -X POST "$REPO_API/issues/$PARENT/comments" \
+    -d "$(jq -n --arg b "$body" '{body:$b}')" >/dev/null
+  say "  create split comment on #$PARENT"
+fi
+
+state=$(echo "$all_issues" | jq -r --argjson n "$PARENT" '.[] | select(.number == $n) | .state')
+if [ "$state" = "closed" ]; then
+  say "  skip   #$PARENT already closed"
+else
+  curl -s "${AUTH[@]}" "${JSON[@]}" -X PATCH "$REPO_API/issues/$PARENT" \
+    -d "$(jq -n '{state:"closed"}')" >/dev/null
+  say "  closed #$PARENT"
+fi
+
+say ""
+say "Done."