Initial: MokoStandards Enterprise API extracted from MokoStandards

Standalone Composer package (mokoconsulting-tech/enterprise).
Source: api/, bin/, lib/ directories from MokoStandards main repo.
Autoload paths updated for standalone layout.

lib/Enterprise/SynchronizationException.php

@@ -0,0 +1,42 @@
+<?php
+/**
+ * Copyright (C) 2026 Moko Consulting <hello@mokoconsulting.tech>
+ *
+ * This file is part of a Moko Consulting project.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ * FILE INFORMATION
+ * DEFGROUP: MokoStandards.Enterprise
+ * INGROUP: MokoStandards
+ * REPO: https://github.com/mokoconsulting-tech/MokoStandards
+ * PATH: /api/lib/Enterprise/SynchronizationException.php
+ * VERSION: 04.06.00
+ * BRIEF: Custom exception for repository synchronization errors
+ */
+
+declare(strict_types=1);
+
+namespace MokoEnterprise;
+
+use RuntimeException;
+
+/**
+ * Exception thrown when repository synchronization fails or is not implemented
+ */
+class SynchronizationNotImplementedException extends RuntimeException
+{
+    /**
+     * Create exception for unimplemented synchronization logic
+     * 
+     * @return self
+     */
+    public static function create(): self
+    {
+        return new self(
+            "Repository synchronization logic is not implemented. " .
+            "The processRepository() method contains only placeholder code. " .
+            "Actual file synchronization, PR creation, and merge handling must be implemented."
+        );
+    }
+}