Add registratie wizard, BFF dashboard-view, contracts/value-objects, and architecture docs

Checkpoint of in-progress work: the registration wizard (address prefill,
DUO diploma lookup, policy questions), decision-DTO contracts, parse-don't-
validate value objects, infrastructure adapters, plus CLAUDE.md and the
architecture/ADR docs.

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

public/mock/brp-address.json

@@ -1,6 +1,5 @@
 {
-  "naam": "Dr. A. (Anna) de Vries",
-  "geboortedatum": "1985-03-14",
+  "gevonden": true,
   "adres": {
     "straat": "Lange Voorhout 9",
     "postcode": "2514 EA",

public/mock/dashboard-view.json

@@ -0,0 +1,23 @@
+{
+  "registration": {
+    "bigNummer": "19012345601",
+    "naam": "Dr. A. (Anna) de Vries",
+    "beroep": "Arts",
+    "registratiedatum": "2012-09-01",
+    "geboortedatum": "1985-03-14",
+    "status": { "tag": "Geregistreerd", "herregistratieDatum": "2027-03-01" }
+  },
+  "person": {
+    "naam": "Dr. A. (Anna) de Vries",
+    "geboortedatum": "1985-03-14",
+    "adres": {
+      "straat": "Lange Voorhout 9",
+      "postcode": "2514 EA",
+      "woonplaats": "Den Haag"
+    }
+  },
+  "decisions": {
+    "eligibleForHerregistratie": true,
+    "herregistratieReason": "Registratie verloopt binnen 12 maanden (2027-03-01)."
+  }
+}

public/mock/duo-diplomas.json

@@ -0,0 +1,38 @@
+{
+  "diplomas": [
+    {
+      "id": "d1",
+      "naam": "Geneeskunde",
+      "instelling": "Universiteit Leiden",
+      "jaar": 2011,
+      "beroep": "Arts",
+      "policyQuestions": []
+    },
+    {
+      "id": "d2",
+      "naam": "Medicine (MBChB)",
+      "instelling": "University of Edinburgh",
+      "jaar": 2013,
+      "beroep": "Arts",
+      "policyQuestions": [
+        { "id": "nl-taalvaardigheid", "vraag": "Uw opleiding was Engelstalig. Beheerst u de Nederlandse taal op het vereiste niveau (B2)?", "type": "ja-nee" }
+      ]
+    },
+    {
+      "id": "d3",
+      "naam": "HBO-Verpleegkunde",
+      "instelling": "Hogeschool Utrecht",
+      "jaar": 2016,
+      "beroep": "Verpleegkundige",
+      "policyQuestions": []
+    }
+  ],
+  "handmatig": {
+    "beroepen": ["Arts", "Verpleegkundige", "Fysiotherapeut", "Apotheker", "Tandarts"],
+    "policyQuestions": [
+      { "id": "nl-taalvaardigheid", "vraag": "Beheerst u de Nederlandse taal op het vereiste niveau (B2)?", "type": "ja-nee" },
+      { "id": "diploma-erkend", "vraag": "Is uw diploma erkend door de Nederlandse overheid (bijv. via Nuffic)?", "type": "ja-nee" },
+      { "id": "toelichting", "vraag": "Geef een korte toelichting op uw diploma en opleiding.", "type": "tekst" }
+    ]
+  }
+}

public/mock/intake-policy.json

@@ -0,0 +1 @@
+{ "scholingThreshold": 1000 }

public/mock/registration.json

@@ -1,8 +0,0 @@
-{
-  "bigNummer": "19012345601",
-  "naam": "Dr. A. (Anna) de Vries",
-  "beroep": "Arts",
-  "registratiedatum": "2012-09-01",
-  "geboortedatum": "1985-03-14",
-  "status": { "tag": "Geregistreerd", "herregistratieDatum": "2027-03-01" }
-}