Mijn aanvragen (C): FE contracts + applications adapter + parse boundary

- Regenerate the NSwag client against the new backend endpoints (application +
  content methods, Aanvraag DTOs) — clears the API-client drift.
- registratie/domain/aanvraag.ts: FE domain view — AanvraagType + AanvraagStatus
  discriminated union (illegal states unrepresentable) + Aanvraag/AanvraagDetail.
  Lives in registratie: the dashboard consumes it, downstream wizards produce it.
- ApplicationsAdapter (infrastructure, the only new network surface): list resource
  + create/syncDraft/cancel/submit commands, with a hand-written parse* boundary
  (parseAanvraagStatus/parseApplicationSummary/parseApplications/parseApplicationDetail)
  mapping untrusted DTO -> domain, per ADR-0001. Spec covers each status tag + rejects.
- UploadAdapter.contentUrl(id): direct href for preview/download (browser opens it).

Gates green: dotnet test 56, vitest 122, lint, build.

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

src/app/registratie/domain/aanvraag.ts

@@ -0,0 +1,32 @@
+/**
+ * An application (aanvraag) as the frontend sees it — the parsed, domain-side view
+ * of the backend-owned aggregate (see backend ApplicationStore + PRD 0001). Pure
+ * types, no Angular. Lives in `registratie` because the dashboard (here) is the
+ * consumer and the downstream wizards (`herregistratie → registratie`) produce them.
+ *
+ * The status is a discriminated union so illegal states are unrepresentable — same
+ * reflex as RemoteData. The server computes which tag applies (auto-approval on
+ * read); the FE renders it, it does not recompute the lifecycle.
+ */
+export type AanvraagType = 'registratie' | 'herregistratie' | 'intake';
+
+export type AanvraagStatus =
+  | { tag: 'Concept'; stepIndex: number; stepCount: number }
+  | { tag: 'InBehandeling'; referentie: string; manual: boolean } // manual=true → "wordt handmatig beoordeeld"
+  | { tag: 'Goedgekeurd'; referentie: string }
+  | { tag: 'Afgewezen'; referentie: string; reden: string };
+
+export interface Aanvraag {
+  id: string;
+  type: AanvraagType;
+  status: AanvraagStatus;
+  documentIds: string[];
+  createdAt: string;
+  updatedAt: string;
+  submittedAt?: string;
+}
+
+/** Detail adds the opaque wizard snapshot used to resume a Concept. */
+export interface AanvraagDetail extends Aanvraag {
+  draft: unknown;
+}