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/shared/ui/radio-group/radio-group.component.ts

@@ -23,7 +23,8 @@ export const JA_NEE: RadioOption[] = [
       role="radiogroup"
       [attr.aria-labelledby]="name() + '-label'"
       [attr.aria-invalid]="invalid() ? 'true' : null"
-      [attr.aria-describedby]="invalid() ? name() + '-error' : null">
+      [attr.aria-describedby]="invalid() ? name() + '-error' : null"
+    >
       @for (opt of options(); track opt.value) {
         <div class="form-check styled">
           <input
@@ -36,13 +37,16 @@ export const JA_NEE: RadioOption[] = [
             [checked]="value === opt.value"
             [disabled]="disabled"
             (change)="select(opt.value)"
-            (blur)="onTouched()" />
+            (blur)="onTouched()"
+          />
           <label class="form-check-label" [for]="name() + '-' + opt.value">{{ opt.label }}</label>
         </div>
       }
     </div>
   `,
-  providers: [{ provide: NG_VALUE_ACCESSOR, useExisting: forwardRef(() => RadioGroupComponent), multi: true }],
+  providers: [
+    { provide: NG_VALUE_ACCESSOR, useExisting: forwardRef(() => RadioGroupComponent), multi: true },
+  ],
 })
 export class RadioGroupComponent implements ControlValueAccessor {
   options = input.required<RadioOption[]>();
@@ -58,8 +62,16 @@ export class RadioGroupComponent implements ControlValueAccessor {
     this.value = v;
     this.onChange(v);
   }
-  writeValue(v: string) { this.value = v ?? ''; }
-  registerOnChange(fn: (v: string) => void) { this.onChange = fn; }
-  registerOnTouched(fn: () => void) { this.onTouched = fn; }
-  setDisabledState(d: boolean) { this.disabled = d; }
+  writeValue(v: string) {
+    this.value = v ?? '';
+  }
+  registerOnChange(fn: (v: string) => void) {
+    this.onChange = fn;
+  }
+  registerOnTouched(fn: () => void) {
+    this.onTouched = fn;
+  }
+  setDisabledState(d: boolean) {
+    this.disabled = d;
+  }
 }

src/app/shared/ui/radio-group/radio-group.stories.ts

@@ -13,5 +13,11 @@ export default meta;
 type Story = StoryObj<RadioGroupComponent>;
 
 export const JaNee: Story = {
-  args: { name: 'voorbeeld', options: [{ value: 'ja', label: 'Ja' }, { value: 'nee', label: 'Nee' }] },
+  args: {
+    name: 'voorbeeld',
+    options: [
+      { value: 'ja', label: 'Ja' },
+      { value: 'nee', label: 'Nee' },
+    ],
+  },
 };