- Fix perform_redaction to handle dict representation of ModelResponse (from model_dump())
- Preserve full choices structure when redacting, redact content/audio in place
- Add _redact_standard_logging_object helper for standard_logging_object field
- Update test_logging_redaction_e2e_test assertions to expect choices format
- Add charity_engine to provider_endpoints_support.json
Fixes: test_standard_logging_payload, test_standard_logging_payload_audio
Made-with: Cursor