Add unit and feature tests for ticket processing and article management

- Implement Fake repositories and services for testing purposes.
- Create tests for Article API including creation, validation, and listing.
- Develop ProcessTicketJobFlowTest to validate ticket processing logic.
- Add QuickReplyAdminTest for creating and updating quick replies.
- Implement TicketAndArticleModelTest to ensure proper cascading deletes and credential encryption.
- Create TicketIngestionTest for ticket creation and job dispatching.
- Add TicketShowPageTest to verify rendering of quick replies and tool calls.
- Implement unit tests for ClassifierPromptBuilder, EmbeddingService, LlmJsonDecoder, QuickReplyResolver, SupportReplyService, TicketResultPayloadBuilder, TicketToolCallService, and ToolCallRequestValidator.

tests/Fakes/FakeDomainInfoTool.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace Tests\Fakes;
+
+use App\Services\Tools\DomainInfoTool;
+use App\Services\Tools\OxxaClient;
+
+class FakeDomainInfoTool extends DomainInfoTool
+{
+    /** @var array<int, array{parameters:array,credentials:array}> */
+    public array $calls = [];
+
+    public array $response = ['ok' => true, 'data' => ['domain' => 'example.nl']];
+
+    public function __construct()
+    {
+        parent::__construct(new OxxaClient);
+    }
+
+    public function execute(array $parameters, array $credentials): array
+    {
+        $this->calls[] = [
+            'parameters' => $parameters,
+            'credentials' => $credentials,
+        ];
+
+        return $this->response;
+    }
+}