Changes to Get API version and feature flags

added the required property features/audit_log to the response with the 200 status

added the required property features/bank_llm_health to the response with the 200 status

added the required property features/document_export_api to the response with the 200 status

added the required property features/document_import_api to the response with the 200 status

added the required property features/llm_trace to the response with the 200 status

added the required property features/store_document_text to the response with the 200 status