Place Thematic Ecosystem (umbrella) visuals here when ready.

Expected files:
- `hero.webp`
- `ecosystem-map.webp`
- `overview-before.png` — generated fragmented ecosystem diagram, currently active
- `overview-after.png` — generated connected ecosystem diagram, currently active

Pages use graceful placeholders, so missing images will not break anything.
See `../PROJECT_IMAGES_GUIDE.md` for how images are wired in `src/data/projects.js`.
Use honest screenshots only — no fake metrics, testimonials, or outcomes.