5.4 (Teil 5): page-header in roles/* + footer-codes/* + presets/*

Neun weitere Standard-Header (md) auf <x-portal.page-header>:
- roles/index (bedingter Anlegen-Button), roles/create (Guard-Badge via
  :meta), roles/edit (ID + Guard + bedingte Systemrolle via :meta)
- footer-codes/index, footer-codes/create, footer-codes/edit (ID + Global +
  Aktiv/Inaktiv via :meta, Titel als Beschreibung)
- presets/index, presets/create, presets/edit (ID via :meta)

Roles-/FooterCode-/Preset-Tests (23) gruen.

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

resources/views/livewire/admin/presets/index.blade.php

@@ -78,26 +78,18 @@ new #[Layout('components.layouts.app'), Title('Voreinstellungen')] class extends
 
 <div class="space-y-8">
     {{-- ============== PAGE HEADER ============== --}}
-    <header class="page-header">
-        <div class="min-w-0">
-            <div class="flex items-center gap-3 mb-3 flex-nowrap whitespace-nowrap">
-                <span class="badge hub dot">{{ __('Admin Backend') }}</span>
-                <span class="eyebrow muted">{{ __('Administration · Stammdaten') }}</span>
-            </div>
-            <h1 class="text-[30px] font-bold tracking-[-0.6px] leading-[1.15] m-0 text-[color:var(--color-ink)]">
-                {{ __('Voreinstellungen') }}
-            </h1>
-            <p class="text-[13px] leading-[1.55] mt-2 m-0 max-w-[640px] text-[color:var(--color-ink-2)]">
-                {{ __('Zentrale Admin-Presets fuer Texte, Zahlen und weitere Werte.') }}
-            </p>
-        </div>
-
-        <div class="flex items-center gap-2 flex-shrink-0">
+    <x-portal.page-header
+        :badge="__('Admin Backend')"
+        :eyebrow="__('Administration · Stammdaten')"
+        :title="__('Voreinstellungen')"
+        :description="__('Zentrale Admin-Presets fuer Texte, Zahlen und weitere Werte.')"
+    >
+        <x-slot:actions>
             <flux:button icon="plus" variant="primary" href="{{ route('admin.presets.create') }}" wire:navigate>
                 {{ __('Neue Voreinstellung') }}
             </flux:button>
-        </div>
-    </header>
+        </x-slot:actions>
+    </x-portal.page-header>
 
     @if (session('success'))
         <div class="px-4 py-3 rounded-[5px] border text-[12.5px] flex items-center gap-2