FINAL FIX: Docker API URL resolution for internal service communication

- Fixed internal API calls in Docker environment to use port 3000 instead of 9000
- Added DOCKER_ENV detection to properly route internal fetch requests
- Resolves ECONNREFUSED errors when APIs try to call each other within container
- Trade validation now works correctly in Docker: 5 USD position validates properly
- Successfully tested: amountUSD field properly passed through validation pipeline
- Both development and Docker environments now fully functional

app/working-chart/page.tsx

@@ -0,0 +1,77 @@
+'use client'
+import React, { useEffect, useRef } from 'react'
+
+export default function WorkingChart() {
+  const chartContainerRef = useRef<HTMLDivElement>(null)
+
+  useEffect(() => {
+    if (!chartContainerRef.current) return
+
+    const initChart = async () => {
+      try {
+        const { createChart, CandlestickSeries } = await import('lightweight-charts')
+        
+        const chart = createChart(chartContainerRef.current!, {
+          width: 800,
+          height: 400,
+          layout: {
+            textColor: '#ffffff',
+            background: { color: '#1a1a1a' },
+          },
+        })
+
+        const candlestickSeries = chart.addSeries(CandlestickSeries, {
+          upColor: '#26a69a',
+          downColor: '#ef5350',
+        })
+
+        // Simple working data - last 30 days
+        const data = []
+        const today = new Date()
+        let price = 166.5
+
+        for (let i = 29; i >= 0; i--) {
+          const date = new Date(today)
+          date.setDate(date.getDate() - i)
+          const timeString = date.toISOString().split('T')[0]
+          
+          const change = (Math.random() - 0.5) * 4
+          const open = price
+          const close = price + change
+          const high = Math.max(open, close) + Math.random() * 2
+          const low = Math.min(open, close) - Math.random() * 2
+
+          data.push({
+            time: timeString,
+            open: Number(open.toFixed(2)),
+            high: Number(high.toFixed(2)),
+            low: Number(low.toFixed(2)),
+            close: Number(close.toFixed(2)),
+          })
+
+          price = close
+        }
+
+        candlestickSeries.setData(data)
+
+        return () => {
+          chart.remove()
+        }
+      } catch (error) {
+        console.error('Chart error:', error)
+      }
+    }
+
+    initChart()
+  }, [])
+
+  return (
+    <div className="min-h-screen bg-gray-900 p-8">
+      <h1 className="text-white text-2xl mb-4">Working Chart Test</h1>
+      <div 
+        ref={chartContainerRef} 
+        className="bg-gray-800 border border-gray-600"
+      />
+    </div>
+  )
+}