Refactor task management and add attachment functionality

- Updated task editing template to handle default status for new tasks and corrected variable names.
- Enhanced work time reporting by rounding time to the nearest quarter hour and adjusting amount formatting.
- Introduced TasksController to manage task-related operations, including status resolution and email notifications.
- Added TaskAttachmentRepository for handling task attachments, including upload, rename, and delete functionalities.
- Implemented WorkTimeRepository to fetch clients with unsettled tasks and calculate total work time.
- Created unit tests for TasksController and TaskAttachmentRepository to ensure functionality and correctness.

tests/run.php

@@ -1,10 +1,12 @@
 <?php
 
 require_once __DIR__ . '/Domain/Tasks/WorkTimeRepositoryTest.php';
+require_once __DIR__ . '/Domain/Tasks/TaskAttachmentRepositoryTest.php';
 require_once __DIR__ . '/Controllers/TasksControllerTest.php';
 
 $tests = [
   'run_work_time_repository_tests',
+  'run_task_attachment_repository_tests',
   'run_tasks_controller_tests'
 ];