Fix P&L calculation and signal flip detection

- Fix external closure P&L using tp1Hit flag instead of currentSize
- Add direction change detection to prevent false TP1 on signal flips
- Signal flips now recorded with accurate P&L as 'manual' exits
- Add retry logic with exponential backoff for Solana RPC rate limits
- Create /api/trading/cancel-orders endpoint for manual cleanup
- Improves data integrity for win/loss statistics

QUICK_SETUP_CARD.md

@@ -0,0 +1,124 @@
+# Quick Reference - Your Setup Info
+
+## ✅ Your Trading Bot Status
+- **Container:** Running and healthy ✅
+- **Endpoint:** Working correctly ✅
+- **Server IP:** 10.0.0.48
+
+---
+
+## 📋 YOUR WEBHOOK URL
+
+Use this URL in TradingView alerts:
+
+```
+http://10.0.0.48:3001/api/trading/market-data
+```
+
+**OR if you have n8n setup as proxy:**
+```
+https://flow.egonetix.de/webhook/market-data
+```
+
+---
+
+## 📝 COPY-PASTE CHECKLIST
+
+When creating EACH alert in TradingView:
+
+### 1️⃣ CONDITION
+```
+time("1")  changes
+```
+
+### 2️⃣ WEBHOOK URL
+```
+http://10.0.0.48:3001/api/trading/market-data
+```
+
+### 3️⃣ ALERT MESSAGE (full JSON)
+```json
+{
+  "action": "market_data",
+  "symbol": "{{ticker}}",
+  "timeframe": "{{interval}}",
+  "atr": {{ta.atr(14)}},
+  "adx": {{ta.dmi(14, 14)}},
+  "rsi": {{ta.rsi(14)}},
+  "volumeRatio": {{volume / ta.sma(volume, 20)}},
+  "pricePosition": {{(close - ta.lowest(low, 100)) / (ta.highest(high, 100) - ta.lowest(low, 100)) * 100}},
+  "currentPrice": {{close}}
+}
+```
+
+### 4️⃣ SETTINGS
+- **Frequency:** Once Per Bar Close
+- **Expiration:** Never
+- **Notifications:** ONLY ✅ Webhook URL (uncheck all others)
+
+---
+
+## 🎯 THE 3 ALERTS YOU NEED
+
+| # | Symbol  | Alert Name              |
+|---|---------|-------------------------|
+| 1 | SOLUSDT | Market Data - SOL 5min  |
+| 2 | ETHUSDT | Market Data - ETH 5min  |
+| 3 | BTCUSDT | Market Data - BTC 5min  |
+
+All on 5-minute charts, all using same config above.
+
+---
+
+## ✅ VERIFICATION COMMAND
+
+After creating alerts, wait 5 minutes, then run:
+
+```bash
+curl http://localhost:3001/api/trading/market-data
+```
+
+**You should see symbols appear:**
+```json
+{
+  "success": true,
+  "availableSymbols": ["SOL-PERP", "ETH-PERP", "BTC-PERP"],
+  "count": 3
+}
+```
+
+---
+
+## 🆘 IF SOMETHING GOES WRONG
+
+**Check bot logs:**
+```bash
+docker logs -f trading-bot-v4
+```
+
+Watch for incoming POST requests when bar closes.
+
+**Test from external machine:**
+```bash
+curl http://10.0.0.48:3001/api/trading/market-data
+```
+
+If this fails → port 3001 blocked by firewall.
+
+---
+
+## 📖 DETAILED GUIDE
+
+See: `TRADINGVIEW_STEP_BY_STEP.md` for detailed walkthrough with screenshots.
+
+---
+
+## ⏭️ NEXT STEP
+
+After alerts are working and cache is populated:
+
+```bash
+./scripts/run_exit_analysis.sh
+```
+
+This will analyze your trades and recommend optimal TP/SL levels.