Store (width, height) of each face crop in the tracker at upload time alongside the existing blur score. Expose TRACE_CROP_SIZE=<px> to look up which Immich asset produced a crop with that pixel dimension, making it straightforward to trace unexpected or low-quality images visible in Frigate back to their source. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>