3eae2beb12
When an image-generator target requests multiple images, duplicate the target placeholder into N generating clones and lay them out beside the target. Incremental results after the first are appended as siblings rather than merged into the target, and placeholder cleanup now clears the target's generating clones on failure. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>