LLMRagent registers methods on three generics LLMR defines:
LLMR::diagnostics() (machine-readable health numbers), LLMR::report()
(a methods-section draft), and LLMR::reset() (clear an apparatus's state).
The token and outcome counts come from LLMR::llm_usage() over the run's
call-level rows, so they agree with the rest of the ecosystem.