- Replaced boolean parameters with a `jsonSchemaCleanOptions` struct in `cleanJSONSchema` to improve readability and scalability. - Updated `CleanJSONSchemaForAntigravity` and related methods to utilize the new options struct. - Enhanced flexibility for schema transformations with fine-grained control over operations like union flattening, enum type enforcement, and metadata removal. - Added comprehensive tests to verify correct handling of unions and enum types in schemas. Closes: #4666