Headless chromium has no colour-emoji font, so 🌻/🏆/⚑ rendered as tofu boxes in the PNG card.
Replace with a self-contained inline-SVG sunflower + plain-text 'capped:'/'full clean climb' markers.
The U3 PR comment keeps the real 🌻 emoji (Gitea markdown renders it). Pure render change.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>