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/Unit/SupportReplyServiceTest.php

@@ -5,9 +5,7 @@ namespace Tests\Unit;
 use App\Models\Article;
 use App\Models\Ticket;
 use App\Services\AppSettingsService;
-use App\Services\Llm\LlmClientInterface;
 use App\Services\SupportReplyService;
-use App\Services\TicketProcessingLoggerService;
 use Illuminate\Foundation\Testing\RefreshDatabase;
 use Tests\Fakes\FakeLlmClient;
 use Tests\Fakes\FakeTicketProcessingLoggerService;
@@ -35,6 +33,7 @@ class SupportReplyServiceTest extends TestCase
 
         $this->assertSame('1. Doe X', $reply);
         $this->assertStringContainsString('Gebruikersvraag (genormaliseerd): vraag', $llm->generatedPrompts[0]['prompt']);
+        $this->assertStringContainsString('spreek de klant consequent informeel aan met je/jij/jouw', $llm->generatedPrompts[0]['prompt']);
     }
 
     public function test_it_falls_back_when_llm_returns_empty(): void
@@ -56,9 +55,41 @@ class SupportReplyServiceTest extends TestCase
         $this->assertStringContainsString('Gebruik het kennisbankartikel', $reply);
     }
 
-    private function fakeSettings(): AppSettingsService
+    public function test_it_includes_formal_addressing_instruction_when_configured(): void
     {
-        return new class extends AppSettingsService {
+        $llm = new FakeLlmClient;
+        $llm->responses = ['1. Doe X'];
+
+        $service = new SupportReplyService(
+            $this->fakeSettings('u'),
+            $llm,
+            new FakeTicketProcessingLoggerService
+        );
+
+        $ticket = Ticket::query()->create(['message' => 'vraag', 'normalized_message' => 'vraag']);
+        $article = Article::query()->create(['title' => 'DNS', 'content' => 'steps']);
+
+        $service->build($ticket, $article, 'relevant');
+
+        $this->assertStringContainsString('spreek de klant consequent formeel aan met u/uw', $llm->generatedPrompts[0]['prompt']);
+        $this->assertStringContainsString('Gebruik geen je/jij/jouw', $llm->generatedPrompts[0]['prompt']);
+    }
+
+    private function fakeSettings(string $tone = 'je'): AppSettingsService
+    {
+        return new class($tone) extends AppSettingsService
+        {
+            public function __construct(private readonly string $tone) {}
+
+            public function get(string $key, ?string $default = null): ?string
+            {
+                if ($key === 'tone_addressing') {
+                    return $this->tone;
+                }
+
+                return $default;
+            }
+
             public function getPrompt(string $key, ?string $default = null): ?string
             {
                 return 'Prompt';