Add AI Knowledge entity and related localization

- Introduced CAIKnowledge entity with fields for name, description, and relationships to Mietinkasso and Räumungsklage.
- Added localization files for CAIKnowledge in multiple languages including English, German, Spanish, and more.
- Updated existing JSON files to include references to AI Knowledge where applicable.
- Created necessary metadata definitions for client, entity, and record definitions for CAIKnowledge.
- Enhanced existing documents and mietinkasso resources to support new AI Knowledge functionality.

custom/Espo/Custom/Resources/metadata/entityDefs/CAdvowareAkten.json

@@ -108,6 +108,14 @@
             "foreign": "advowareAkten",
             "entity": "CMietinkasso",
             "isCustom": true
+        },
+        "dokumentes": {
+            "type": "hasMany",
+            "relationName": "cAdvowareAktenDokumente",
+            "foreign": "advowareAktens",
+            "entity": "CDokumente",
+            "audited": true,
+            "isCustom": true
         }
     },
     "collection": {