llm 0.34 release: response-timing and logging performance improvements

The open-source tool llm released version 0.34. The update introduces the llm logs --usage command to retrieve usage statistics. Markdown output now includes response time in milliseconds and in a human-readable format, enabling more accurate measurement of response lengths. The llm logs --short option returns a new duration_ms field in the shortened log format. The release also includes several smaller community-contributed bug fixes that improve stability. A significant performance improvement to the llm logs command was implemented by GitHub contributor waveplate. The changes make logging and response-time monitoring easier for both development and business contexts. The release also mentions the llm-openrouter 0.7.1 component. The update provides developers and operators with useful metrics and performance tools by extending available log information. Details and the related GitHub pull request #1653 are available in the project repository.