963355d241
Extract input preparation and image conversion handling into look-at-input-preparer.ts. Extract prompt construction and multimodal session execution into look-at-prompt.ts and look-at-session-runner.ts while keeping createLookAt stable. Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>