feat(infra): seed BIG catalogus + JWT client for OpenZaak (refs #2)

Provision a JWT client declaratively via OpenZaak setup_configuration
(infra/openzaak/setup_configuration/data.yaml: JWTSecret + Applicatie with
all authorizations), and seed the BIG catalogus + a lean BIG-REGISTRATIE
zaaktype (concept) + a bsn eigenschap via the ZTC API with an idempotent
stdlib seed (infra/openzaak/seed_catalogus.py, `make openzaak-seed`).

Disable outbound notifications until NRC lands (S-01-c) so ZTC writes don't
500. Bind-mount the config with :z (SELinux) for rootless Podman. Record
the design in ADR-0002; document seeding + the dev JWT client in the
OpenZaak runbook.

Verified clean-slate: down --volumes -> up -> `make openzaak-seed` creates
the catalogus/zaaktype/eigenschap and the JWT client lists BIG-REGISTRATIE;
re-runs are all-skip (idempotent).

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

infra/openzaak/seed_catalogus.py

@@ -0,0 +1,137 @@
+#!/usr/bin/env python3
+"""Idempotent seed of the BIG catalogus into OpenZaak via the ZTC API.
+
+Creates (if absent):
+  - catalogus "BIG"
+  - a lean "BIG-registratie" zaaktype (only schema-mandatory fields)
+  - a "bsn" eigenschap on that zaaktype
+  - then publishes the zaaktype.
+
+Auth uses the JWT client provisioned by setup_configuration (see ADR-0002).
+Stdlib only — no pip deps. Re-running is safe (matches existing by identifier).
+"""
+import base64, hashlib, hmac, json, os, sys, time, urllib.error, urllib.request
+
+BASE = os.environ.get("OZ_BASE", "http://localhost:8000")
+CLIENT_ID = os.environ.get("OZ_CLIENT_ID", "big-reference-seed")
+SECRET = os.environ.get("OZ_SECRET", "insecure-dev-secret-change-me")
+ZTC = f"{BASE}/catalogi/api/v1"
+RSIN = "517439943"  # elfproef-valid test RSIN
+
+
+def token():
+    b64 = lambda b: base64.urlsafe_b64encode(b).rstrip(b"=")
+    hdr = {"alg": "HS256", "typ": "JWT"}
+    pl = {"iss": CLIENT_ID, "iat": int(time.time()), "client_id": CLIENT_ID,
+          "user_id": "seed", "user_representation": "seed"}
+    seg = b64(json.dumps(hdr, separators=(",", ":")).encode()) + b"." + \
+          b64(json.dumps(pl, separators=(",", ":")).encode())
+    sig = b64(hmac.new(SECRET.encode(), seg, hashlib.sha256).digest())
+    return (seg + b"." + sig).decode()
+
+
+def api(method, path, body=None):
+    url = path if path.startswith("http") else f"{ZTC}{path}"
+    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:
+            return r.status, json.loads(r.read() or "null")
+    except urllib.error.HTTPError as e:
+        return e.code, json.loads(e.read() or "null")
+
+
+def find(path):
+    status, body = api("GET", path)
+    if status != 200:
+        sys.exit(f"GET {path} -> {status}: {body}")
+    return body.get("results", [])
+
+
+def main():
+    # 1. Catalogus
+    existing = [c for c in find(f"/catalogussen?domein=BIG") if c.get("domein") == "BIG"]
+    if existing:
+        cat = existing[0]
+        print(f"skip   catalogus BIG ({cat['url']})")
+    else:
+        st, cat = api("POST", "/catalogussen", {
+            "domein": "BIG", "rsin": RSIN,
+            "contactpersoonBeheerNaam": "BIG Beheer",
+        })
+        if st != 201:
+            sys.exit(f"create catalogus -> {st}: {cat}")
+        print(f"create catalogus BIG ({cat['url']})")
+
+    # 2. Zaaktype (concept)
+    # status=alles so concept zaaktypen are matched too (else we'd duplicate).
+    zts = [z for z in find(f"/zaaktypen?catalogus={cat['url']}&status=alles")
+           if z.get("identificatie") == "BIG-REGISTRATIE"]
+    if zts:
+        zt = zts[0]
+        print(f"skip   zaaktype BIG-REGISTRATIE ({zt['url']}) concept={zt.get('concept')}")
+    else:
+        st, zt = api("POST", "/zaaktypen", {
+            "identificatie": "BIG-REGISTRATIE",
+            "omschrijving": "BIG-registratie",
+            "vertrouwelijkheidaanduiding": "openbaar",
+            "doel": "Registratie van een zorgprofessional in het BIG-register",
+            "aanleiding": "Aanvraag tot registratie",
+            "indicatieInternOfExtern": "extern",
+            "handelingInitiator": "indienen",
+            "onderwerp": "BIG-registratie",
+            "handelingBehandelaar": "behandelen",
+            "doorlooptijd": "P30D",
+            "opschortingEnAanhoudingMogelijk": False,
+            "verlengingMogelijk": False,
+            "publicatieIndicatie": False,
+            "productenOfDiensten": [],
+            "referentieproces": {"naam": "BIG-registratie"},
+            "catalogus": cat["url"],
+            "besluittypen": [],
+            "gerelateerdeZaaktypen": [],
+            "beginGeldigheid": "2026-01-01",
+            "versiedatum": "2026-01-01",
+            "verantwoordelijke": RSIN,
+        })
+        if st != 201:
+            sys.exit(f"create zaaktype -> {st}: {json.dumps(zt, indent=2)}")
+        print(f"create zaaktype BIG-REGISTRATIE ({zt['url']})")
+
+    # 3. bsn eigenschap (only addable while concept)
+    eigs = [e for e in find(f"/eigenschappen?zaaktype={zt['url']}&status=alles")
+            if e.get("naam") == "bsn"]
+    if eigs:
+        print("skip   eigenschap bsn")
+    elif zt.get("concept", True):
+        st, eig = api("POST", "/eigenschappen", {
+            "naam": "bsn",
+            "definitie": "Burgerservicenummer van de zorgprofessional",
+            "zaaktype": zt["url"],
+            "specificatie": {"groep": "aanvrager", "formaat": "tekst",
+                             "lengte": "9", "kardinaliteit": "1", "waardenverzameling": []},
+        })
+        if st != 201:
+            sys.exit(f"create eigenschap -> {st}: {json.dumps(eig, indent=2)}")
+        print("create eigenschap bsn")
+    else:
+        print("warn   zaaktype already published; cannot add bsn eigenschap")
+
+    # Intentionally NOT published. Publishing requires roltypen, resultaattypen
+    # and statustypen, which go beyond the "lean / schema-mandatory" zaaktype this
+    # slice asks for; they arrive with the workflow/zaak slices. See ADR-0002.
+
+    # 4. Verify the JWT client can list the zaaktype (concepts included).
+    zaaktypen = find(f"/zaaktypen?catalogus={cat['url']}&status=alles")
+    names = [z.get("identificatie") for z in zaaktypen]
+    print(f"zaaktypen in BIG: {names}")
+    assert "BIG-REGISTRATIE" in names, "BIG-REGISTRATIE not listed"
+    print("OK — BIG catalogus seeded (BIG-REGISTRATIE concept + bsn eigenschap)")
+
+
+if __name__ == "__main__":
+    main()