fix: Return LLM response metadata (finish_reason, usage, model) + system message role support#8

Ryuketsukami wants to merge 1 commit intofacebookresearch:mainfacebookresearch/HyperAgents:mainfrom

Ryuketsukami:fix/llm-response-metadataRyuketsukami/HyperAgents:fix/llm-response-metadataCopy head branch name to clipboard