Add junction entities and ACL for CAICollection, CAdvowareAkten, and CPulsTeam

- Introduced new junction entities: CAICollectionCDokumente, CAdvowareAktenCDokumente, and CPulsTeamZuordnung.
- Implemented respective controllers and services for handling CRUD operations.
- Added metadata definitions for new entities, including fields, links, and indexes.
- Created language files for English and German translations for the new entities.
- Developed a script to set ACL permissions for the new junction entities across existing roles.
- Updated existing entity definitions to include new relationships and fields related to Advoware and AI Collections.

custom/Espo/Custom/Services/CAICollectionCDokumente.php

@@ -0,0 +1,14 @@
+<?php
+namespace Espo\Custom\Services;
+
+use Espo\Services\Record;
+
+/**
+ * Junction Service: CAICollection ↔ CDokumente
+ * 
+ * Handles business logic for the junction table.
+ */
+class CAICollectionCDokumente extends Record
+{
+    // Standard CRUD logic inherited from Record service
+}