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/FakeTicketProcessingLoggerService.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Tests\Fakes;
+
+use App\Models\Ticket;
+use App\Services\TicketProcessingLoggerService;
+
+class FakeTicketProcessingLoggerService extends TicketProcessingLoggerService
+{
+    /** @var array<int, array{step:string,status:string,message:string|null,context:array}> */
+    public array $logs = [];
+
+    public function log(Ticket $ticket, string $step, string $status = 'info', ?string $message = null, array $context = []): void
+    {
+        $this->logs[] = [
+            'step' => $step,
+            'status' => $status,
+            'message' => $message,
+            'context' => $context,
+        ];
+    }
+}