✨ Add service disclaimer component and Nostr validation links

- ➕ Introduced reusable `<x-service-disclaimer>` component for better clarity and consistency on service pages.
- 🔗 Added `njump` links for Nostr profile validation in service listings and landing pages.
- 🧪 Included feature tests to verify disclaimer visibility and correct `njump` link rendering or omission for anonymous services.

resources/views/livewire/services/landingpage.blade.php

@@ -52,6 +52,8 @@ class extends Component {
 @endsection
 
 <div class="container mx-auto px-4 py-8 max-w-5xl">
+    <x-service-disclaimer/>
+
     <!-- Header -->
     <div class="mb-8">
         <div class="flex items-center justify-between mb-4">
@@ -196,6 +198,14 @@ class extends Component {
                                 <flux:avatar size="xs" src="{{ $service->createdBy->profile_photo_url }}"/>
                                 <span class="font-medium">{{ $service->createdBy->name }}</span>
                             </div>
+                            @if($service->createdBy->nostr)
+                                <flux:link :href="'https://njump.me/'.$service->createdBy->nostr" external
+                                           variant="subtle"
+                                           class="mt-2 inline-flex items-center gap-1 text-purple-600 dark:text-purple-400">
+                                    <flux:icon.magnifying-glass variant="mini"/>
+                                    <span>{{ __('Ersteller auf Nostr validieren (njump)') }}</span>
+                                </flux:link>
+                            @endif
                         @endif
                     </div>