feat: Add persistent settings and multiple layouts support

- Add settings manager to persist symbol, timeframe, and layouts
- Support multiple layouts for comprehensive chart analysis
- Remove debug screenshots for cleaner logs
- Update AI analysis with professional trading prompt
- Add multi-screenshot analysis for better trading insights
- Update analyze API to use saved settings and multiple layouts

app/api/trading-history/route.ts

@@ -0,0 +1,14 @@
+import prisma from '../../../lib/prisma'
+import { NextResponse } from 'next/server'
+
+export async function GET() {
+  try {
+    const trades = await prisma.trade.findMany({
+      orderBy: { executedAt: 'desc' },
+      take: 50
+    })
+    return NextResponse.json(trades)
+  } catch (e: any) {
+    return NextResponse.json({ error: e.message }, { status: 500 })
+  }
+}