Add localization files and layout configurations for CAkten and related entities

- Created localization JSON files for multiple languages (e.g., Danish, German, Greek, English, Spanish, etc.) for CAkten and CAktenCDokumente.
- Added layout configurations for CAkten, including detail views, side panels, and bottom panels.
- Implemented metadata definitions for CAkten, including field definitions, relationship panels, and scopes.
- Introduced new JSON files for managing document relationships and listing configurations.

custom/Espo/Custom/Controllers/CAdvowareAktenCDokumente.php.bak

@@ -0,0 +1,23 @@
+<?php
+namespace Espo\Custom\Controllers;
+
+use Espo\Core\Controllers\Record;
+
+/**
+ * Junction Controller: CAdvowareAkten ↔ CDokumente
+ * 
+ * Provides REST API access to the junction table with additionalColumns:
+ * - hnr: Advoware HNR reference
+ * - syncStatus: Sync state tracking
+ */
+class CAdvowareAktenCDokumente extends Record
+{
+    // Inherits all CRUD operations from Record controller
+    // 
+    // Available endpoints:
+    // GET    /api/v1/CAdvowareAktenCDokumente
+    // GET    /api/v1/CAdvowareAktenCDokumente/{id}
+    // POST   /api/v1/CAdvowareAktenCDokumente
+    // PUT    /api/v1/CAdvowareAktenCDokumente/{id}
+    // DELETE /api/v1/CAdvowareAktenCDokumente/{id}
+}