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/auto-trading/route.ts

@@ -0,0 +1,33 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { getAutoTradingService } from '../../../lib/auto-trading'
+
+const autoTradingService = getAutoTradingService()
+
+export async function POST(req: NextRequest) {
+  try {
+    const { action, config } = await req.json()
+    if (action === 'start') {
+      autoTradingService.start()
+      return NextResponse.json({ status: 'started' })
+    }
+    if (action === 'stop') {
+      autoTradingService.stop()
+      return NextResponse.json({ status: 'stopped' })
+    }
+    if (action === 'config' && config) {
+      autoTradingService.setConfig(config)
+      return NextResponse.json({ status: 'config updated', config: autoTradingService })
+    }
+    return NextResponse.json({ error: 'Invalid action' }, { status: 400 })
+  } catch (e: any) {
+    return NextResponse.json({ error: e.message }, { status: 500 })
+  }
+}
+
+export async function GET() {
+  // Return current config/status
+  return NextResponse.json({
+    config: autoTradingService,
+    running: !!autoTradingService['intervalId']
+  })
+}