core Directory Reference

Files
	http_client.hpp
	Abstract HTTP client interface and response type.
	input.hpp
	Polymorphic input types for chat requests.
	model.hpp
	Model metadata and capability identifiers.
	options.hpp
	Model-specific generation options (temperature, max_tokens, etc.).
	provider.hpp
	LLMClient and Provider interfaces for chat operations.
	serialization.hpp
	JSON serialization and deserialization for core types.
	tools.hpp
	Tool system: ExternalTool, FunctionTool, WebSearch, and tool call types.
	types.hpp
	ChatRequest and ChatResponse types with fluent builder API.