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/TestCase.php

@@ -6,5 +6,4 @@ use Illuminate\Foundation\Testing\TestCase as BaseTestCase;
 
 abstract class TestCase extends BaseTestCase
 {
-    //
 }