Wire background-image url() to ImageId via ImageStore lookup during layout, add canvas background URL resolution for root/body propagation, and verify all background sub-properties end-to-end with 8 golden tests (241-248). Includes code review fixes: deduplicate ImageStore.insert_url, extract apply_styles_to_canvas helper, remove redundant Phase 2 canvas propagation. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
184 B
184 B