style: format frontend, docs and skills with prettier; add .prettierignore

One-time prettier --write so the new format:check CI gate starts green.
.prettierignore excludes generated (api-client.ts, documentation.json),
vendored (public/cibg-huisstijl), and backend (dotnet format owns it).

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

src/app/registratie/application/big-profile.store.ts

@@ -4,7 +4,11 @@ import { Aantekening } from '../domain/registration';
 import { BigProfile } from '../domain/big-profile';
 import { HerregistratieDecisions } from '../contracts/dashboard-view.dto';
 import { BigRegisterAdapter } from '../infrastructure/big-register.adapter';
-import { DashboardView, DashboardViewAdapter, parseDashboardView } from '../infrastructure/dashboard-view.adapter';
+import {
+  DashboardView,
+  DashboardViewAdapter,
+  parseDashboardView,
+} from '../infrastructure/dashboard-view.adapter';
 
 type Err = Error | undefined;
 
@@ -32,14 +36,20 @@ export class BigProfileStore {
     const rd = fromResource(this.viewRes);
     if (rd.tag !== 'Success') return rd;
     const parsed = parseDashboardView(rd.value);
-    return parsed.ok ? { tag: 'Success', value: parsed.value } : { tag: 'Failure', error: new Error(parsed.error) };
+    return parsed.ok
+      ? { tag: 'Success', value: parsed.value }
+      : { tag: 'Failure', error: new Error(parsed.error) };
   });
 
   /** Registration + person, from the single aggregated call. */
-  readonly profile = computed<RemoteData<Err, BigProfile>>(() => map(this.view(), (v) => v.profile));
+  readonly profile = computed<RemoteData<Err, BigProfile>>(() =>
+    map(this.view(), (v) => v.profile),
+  );
 
   /** Server-computed decisions (e.g. herregistratie eligibility) — rendered, not recomputed. */
-  readonly decisions = computed<RemoteData<Err, HerregistratieDecisions>>(() => map(this.view(), (v) => v.decisions));
+  readonly decisions = computed<RemoteData<Err, HerregistratieDecisions>>(() =>
+    map(this.view(), (v) => v.decisions),
+  );
 
   /** Specialisms/notes stay a separate stream (they have their own empty state). */
   readonly aantekeningen = computed<RemoteData<Err, Aantekening[]>>(() => {