nvcurve with some fixes and better limits

frontend/src/hooks/useMonitor.ts

@@ -0,0 +1,22 @@
+import { useEffect, useRef, useState } from 'react';
+import { createWsConnection } from '../api/websocket';
+import { useCurveStore } from '../store/curveStore';
+import type { MonitoringSample } from '../types';
+
+export function useMonitor() {
+  const { monitor, monitorHistory, pushMonitor, selectedGpuIndex } = useCurveStore();
+  const [wsStatus, setWsStatus] = useState<'connecting' | 'connected' | 'disconnected'>('connecting');
+  const wsRef = useRef<ReturnType<typeof createWsConnection> | null>(null);
+
+  useEffect(() => {
+    wsRef.current = createWsConnection<MonitoringSample>(
+      '/ws/monitor',
+      pushMonitor,
+      setWsStatus,
+      selectedGpuIndex,
+    );
+    return () => wsRef.current?.close();
+  }, [pushMonitor, selectedGpuIndex]);
+
+  return { monitor, monitorHistory, wsStatus };
+}