feat: Enhance Support Reply Service with tone instructions and article details

- Added tone instruction retrieval to SupportReplyService.
- Improved user feedback when no relevant article is found.
- Included article URL and tone instruction in LLM prompt.
- Updated response format to include source information.
- Enhanced article management UI with search functionality and editing capabilities.
- Introduced a new API endpoint for nearest articles based on vector search.
- Added confidence badge component to display article confidence levels.
- Implemented tests for article searching, editing, and nearest article API.
- Removed obsolete .htaccess file.

tests/Feature/ArticleManagerTest.php

@@ -0,0 +1,59 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Livewire\Admin\ArticleManager;
+use App\Models\Article;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Facades\Queue;
+use Livewire\Livewire;
+use Tests\TestCase;
+
+class ArticleManagerTest extends TestCase
+{
+    use RefreshDatabase;
+
+    public function test_it_can_search_articles(): void
+    {
+        Article::withoutEvents(function (): void {
+            Article::query()->create([
+                'title' => 'DNS instellen',
+                'content' => 'Managed DNS handleiding',
+            ]);
+
+            Article::query()->create([
+                'title' => 'E-mail wachtwoord wijzigen',
+                'content' => 'Mailbox instellingen',
+            ]);
+        });
+
+        Livewire::test(ArticleManager::class)
+            ->set('search', 'Managed DNS')
+            ->assertSee('DNS instellen')
+            ->assertDontSee('E-mail wachtwoord wijzigen');
+    }
+
+    public function test_it_can_edit_article_title_and_content(): void
+    {
+        Queue::fake();
+        config(['services.embedding.queue_embeddings' => true]);
+
+        $article = Article::withoutEvents(fn () => Article::query()->create([
+            'title' => 'Oude titel',
+            'content' => 'Oude inhoud',
+        ]));
+
+        Livewire::test(ArticleManager::class)
+            ->call('startEdit', $article->id)
+            ->assertSet('editingArticleId', $article->id)
+            ->set('editTitle', 'Nieuwe titel')
+            ->set('editContent', 'Nieuwe inhoud voor het artikel')
+            ->call('saveEdit')
+            ->assertSet('editingArticleId', null);
+
+        $article->refresh();
+
+        $this->assertSame('Nieuwe titel', $article->title);
+        $this->assertSame('Nieuwe inhoud voor het artikel', $article->content);
+    }
+}