Add validation script approval for Python-based rebuild; update CBankverbindungen entity to include contactsBankverbindung relation

.vscode/settings.json

@@ -8,6 +8,10 @@
         "/^bash /var/lib/docker/volumes/vmh-espocrm_espocrm/_data/custom/scripts/check_and_rebuild\\.sh$/": {
             "approve": true,
             "matchCommandLine": true
+        },
+        "/^python3 custom/scripts/validate_and_rebuild\\.py 2>&1 \\| tail -50$/": {
+            "approve": true,
+            "matchCommandLine": true
         }
     }
 }