Fix critical balance validation and add comprehensive trading features

- Fixed CoinGecko API rate limiting with fallback SOL price (68.11)
- Corrected internal API calls to use proper Docker container ports
- Fixed balance validation to prevent trades exceeding wallet funds
- Blocked 0.5 SOL trades with only 0.073 SOL available (~2.24)

- Added persistent storage for positions, trades, and pending orders
- Implemented limit order system with auto-fill monitoring
- Created pending orders panel and management API
- Added trades history tracking and display panel
- Enhanced position tracking with P&L calculations
- Added wallet balance validation API endpoint

- Positions stored in data/positions.json
- Trade history stored in data/trades.json
- Pending orders with auto-fill logic
- Real-time balance validation before trades

- All trades now validate against actual wallet balance
- Insufficient balance trades are properly blocked
- Added comprehensive error handling and logging
- Fixed Docker networking for internal API calls

- SPOT and leveraged trading modes
- Limit orders with price monitoring
- Stop loss and take profit support
- DEX integration with Jupiter
- Real-time position updates and P&L tracking

 Tested and verified all balance validation works correctly

app/trading/page.js

@@ -2,6 +2,8 @@
 import React, { useState, useEffect } from 'react'
 import TradeExecutionPanel from '../../components/TradeExecutionPanel.js'
 import PositionsPanel from '../../components/PositionsPanel.js'
+import PendingOrdersPanel from '../../components/PendingOrdersPanel.js'
+import TradesHistoryPanel from '../../components/TradesHistoryPanel.js'
 
 export default function TradingPage() {
   const [selectedSymbol, setSelectedSymbol] = useState('SOL')
@@ -85,6 +87,9 @@ export default function TradingPage() {
           {/* Open Positions */}
           <PositionsPanel />
 
+          {/* Pending Orders */}
+          <PendingOrdersPanel />
+
           {/* Portfolio Overview */}
           <div className="card card-gradient p-6">
             <h2 className="text-xl font-bold text-white mb-4">Wallet Overview</h2>
@@ -129,6 +134,9 @@ export default function TradingPage() {
               </div>
             )}
           </div>
+          
+          {/* Recent Trades */}
+          <TradesHistoryPanel />
         </div>
       </div>
     </div>