chore: rename src/ to source/ per MokoStandards convention

Update all references in Makefile, manifest.xml, .gitignore, and CI
workflows (ci-joomla, pr-check, repo-health) to use source/ as the
primary directory with src/ as a fallback for compatibility.

Authored-by: Moko Consulting
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

source/packages/com_mokobackup/api/src/View/Backups/JsonapiView.php

@@ -0,0 +1,53 @@
+<?php
+
+/**
+ * @package     MokoJoomBackup
+ * @subpackage  com_mokobackup
+ * @author      Moko Consulting <hello@mokoconsulting.tech>
+ * @copyright   Copyright (C) 2026 Moko Consulting. All rights reserved.
+ * @license     GNU General Public License version 3 or later; see LICENSE
+ */
+
+namespace Joomla\Component\MokoBackup\Api\View\Backups;
+
+defined('_JEXEC') or die;
+
+use Joomla\CMS\MVC\View\JsonApiView as BaseApiView;
+
+class JsonapiView extends BaseApiView
+{
+	protected $fieldsToRenderItem = [
+		'id',
+		'profile_id',
+		'description',
+		'status',
+		'origin',
+		'backup_type',
+		'archivename',
+		'absolute_path',
+		'total_size',
+		'db_size',
+		'files_count',
+		'tables_count',
+		'multipart',
+		'tag',
+		'backupstart',
+		'backupend',
+		'filesexist',
+		'remote_filename',
+	];
+
+	protected $fieldsToRenderList = [
+		'id',
+		'profile_id',
+		'description',
+		'status',
+		'origin',
+		'backup_type',
+		'archivename',
+		'total_size',
+		'backupstart',
+		'backupend',
+		'filesexist',
+	];
+}