* Add actual LLM token usage fields to RetainResult
RetainResult now carries llm_input_tokens, llm_output_tokens, and
llm_total_tokens populated from the engine's TokenUsage, so downstream
operation validator extensions can access actual LLM token counts.
* Test that RetainResult includes actual LLM token usage
* chore: run benchmarks with reflect mode
* chore: run benchmarks with reflect mode
* fixes
* new mm
* bunch of fixes
* initial commit
* fixes
* fixes
* fixes
* fix: sometimes memories gets extracted in the wrong language
