New /river page showing funding flows as an animated river with waterfalls
cascading in (inflows) and out (spending). SVG-based with CSS animations
for water effects, ripples, and current lines. Supports demo mode with
simulated data and live mode via Safe Global API for real on-chain balances.
Also includes source node type and landing page nav links.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Jeff Emmett