Enhanced the `requestToChatHistory` method to include OpenAI schema conversion logic and integrate tools with generative AI schemas. This change improves flexibility when working with different schema types and tool definitions. Adjusted response handling to return a modified model alongside chat sessions and parts.
Replace message handling with a chat session model, aligning the logic with new API requirements. Adjust functions to properly build chat history and send messages via chat sessions, improving compatibility and extensibility.
Implemented a nil check for Toolbox to prevent potential nil pointer dereferences. Cleaned up and reorganized code for better readability and maintainability while keeping placeholder functionality intact.
Modify `FunctionCall` struct to handle arguments as strings. Add debugging logs to facilitate error tracing and improve JSON unmarshalling in various functions.
