Add last trade details to analytics dashboard

- Add getLastTrade() function to database service
- Create /api/analytics/last-trade endpoint
- Display last trade with full details on analytics page
- Show entry/exit prices, P&L, position size, targets
- Visual indicators for trade direction and exit reason
- Helps quickly diagnose where trades went (TP1, TP2, or SL)

app/api/analytics/last-trade/route.ts

@@ -0,0 +1,50 @@
+/**
+ * Last Trade API Endpoint
+ * 
+ * Returns details of the most recent trade
+ */
+
+import { NextResponse } from 'next/server'
+import { getLastTrade } from '@/lib/database/trades'
+
+export async function GET() {
+  try {
+    const trade = await getLastTrade()
+    
+    if (!trade) {
+      return NextResponse.json({
+        trade: null,
+      })
+    }
+    
+    // Format the trade data for the frontend
+    const formattedTrade = {
+      id: trade.id,
+      symbol: trade.symbol,
+      direction: trade.direction,
+      entryPrice: trade.entryPrice,
+      entryTime: trade.entryTime.toISOString(),
+      exitPrice: trade.exitPrice || undefined,
+      exitTime: trade.exitTime?.toISOString() || undefined,
+      exitReason: trade.exitReason || undefined,
+      realizedPnL: trade.realizedPnL || undefined,
+      realizedPnLPercent: trade.realizedPnLPercent || undefined,
+      positionSizeUSD: trade.positionSizeUSD,
+      leverage: trade.leverage,
+      stopLossPrice: trade.stopLossPrice,
+      takeProfit1Price: trade.takeProfit1Price,
+      takeProfit2Price: trade.takeProfit2Price,
+      isTestTrade: trade.isTestTrade || false,
+    }
+    
+    return NextResponse.json({
+      trade: formattedTrade,
+    })
+  } catch (error) {
+    console.error('Failed to fetch last trade:', error)
+    return NextResponse.json(
+      { error: 'Failed to fetch last trade' },
+      { status: 500 }
+    )
+  }
+}