Initial commit: NOFX AI Trading System

- Multi-AI competition mode (Qwen vs DeepSeek)
- Binance Futures integration
- AI self-learning mechanism
- Professional web dashboard
- Complete risk management system

web/node_modules/d3-shape/src/symbol/circle.js

@@ -0,0 +1,9 @@
+import {pi, sqrt, tau} from "../math.js";
+
+export default {
+  draw(context, size) {
+    const r = sqrt(size / pi);
+    context.moveTo(r, 0);
+    context.arc(0, 0, r, 0, tau);
+  }
+};