| # Patch Notes — Thumbnail Update | |
| - Added custom social-sharing thumbnail for the Primordial Code Ecosystem Hugging Face Space. | |
| - Preserved the full root ecosystem page and registry. | |
| - Updated README YAML metadata with thumbnail field. | |
| - Added local `thumbnail.png` asset. | |
| Boundary: the image is a visual ecosystem thumbnail / architecture representation, not empirical validation. | |