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

lib/auto-trading.ts

@@ -0,0 +1,82 @@
+import { tradingViewCapture } from './tradingview'
+import { aiAnalysisService } from './ai-analysis'
+import prisma from './prisma'
+
+export interface AutoTradingConfig {
+  enabled: boolean
+  symbols: string[]
+  intervalMinutes: number
+  maxDailyTrades: number
+  tradingAmount: number
+  confidenceThreshold: number
+}
+
+export class AutoTradingService {
+  private config: AutoTradingConfig
+  private intervalId: NodeJS.Timeout | null = null
+  private dailyTradeCount: Record<string, number> = {}
+
+  constructor(config: AutoTradingConfig) {
+    this.config = config
+    this.dailyTradeCount = {}
+  }
+
+  start() {
+    if (this.intervalId || !this.config.enabled) return
+    this.intervalId = setInterval(() => this.run(), this.config.intervalMinutes * 60 * 1000)
+    this.run() // Run immediately on start
+  }
+
+  stop() {
+    if (this.intervalId) {
+      clearInterval(this.intervalId)
+      this.intervalId = null
+    }
+  }
+
+  async run() {
+    if (!this.config.enabled) return
+    for (const symbol of this.config.symbols) {
+      if ((this.dailyTradeCount[symbol] || 0) >= this.config.maxDailyTrades) continue
+      // 1. Capture screenshot
+      const filename = `${symbol}_${Date.now()}.png`
+      const screenshotPath = await tradingViewCapture.capture(symbol, filename)
+      // 2. Analyze screenshot
+      const analysis = await aiAnalysisService.analyzeScreenshot(filename)
+      if (!analysis || analysis.confidence < this.config.confidenceThreshold) continue
+      // 3. Execute trade (stub: integrate with driftTradingService)
+      // const tradeResult = await driftTradingService.executeTrade({ ... })
+      // 4. Save trade to DB
+      await prisma.trade.create({
+        data: {
+          symbol,
+          side: analysis.recommendation === 'BUY' ? 'LONG' : analysis.recommendation === 'SELL' ? 'SHORT' : 'NONE',
+          amount: this.config.tradingAmount,
+          price: 0, // To be filled with actual execution price
+          status: 'PENDING',
+          screenshotUrl: screenshotPath,
+          aiAnalysis: JSON.stringify(analysis),
+          executedAt: new Date(),
+          userId: 'system', // Or actual user if available
+        }
+      })
+      this.dailyTradeCount[symbol] = (this.dailyTradeCount[symbol] || 0) + 1
+    }
+  }
+
+  setConfig(config: Partial<AutoTradingConfig>) {
+    this.config = { ...this.config, ...config }
+  }
+}
+
+export function getAutoTradingService() {
+  // Singleton pattern or similar
+  return new AutoTradingService({
+    enabled: false,
+    symbols: ['BTCUSD'],
+    intervalMinutes: 15,
+    maxDailyTrades: 10,
+    tradingAmount: 100,
+    confidenceThreshold: 80
+  })
+}