Worked on the spring-ai repository to enhance the StabilityAiImageOptions API, focusing on improving reliability and maintainability. Addressed JSON serialization issues by adding @JsonProperty to response_format, which improved compatibility for client integrations. Refactored the API using Java and the Builder Pattern, removing redundant builder methods to streamline the API surface and reduce maintenance complexity. Simplified the merge logic for style presets, ensuring that runtime options consistently override defaults through a single operation. These targeted changes consolidated multiple improvements into a cohesive update, strengthening the foundation for future enhancements and making the API more predictable and easier to integrate.