Add Position Sync feature for recovering tracking after partial fills

- New /api/trading/sync-positions endpoint (no auth)
- Fetches actual Drift positions and compares with Position Manager
- Removes stale tracking, adds missing positions with calculated TP/SL
- Settings UI: Orange 'Sync Positions' button added
- CLI script: scripts/sync-positions.sh for terminal access
- Full documentation in docs/guides/POSITION_SYNC_GUIDE.md
- Quick reference: POSITION_SYNC_QUICK_REF.md
- Updated AI instructions with pitfall #23

Problem solved: Manual Telegram trades with partial fills can cause
Position Manager to lose tracking, leaving positions without software-
based stop loss protection. This feature restores dual-layer protection.

Note: Docker build not picking up route yet (cache issue), needs investigation

POSITION_SYNC_QUICK_REF.md

@@ -0,0 +1,61 @@
+# Position Sync - Quick Reference
+
+## 🚨 When to Use
+- Position open on Drift but Position Manager shows 0 trades
+- Database says "closed" but Drift shows position still open  
+- After manual Telegram trades with partial fills
+- Bot restart lost in-memory tracking
+- Rate limiting (429 errors) disrupted monitoring
+
+## ✅ Three Ways to Sync
+
+### 1. Settings UI (Easiest)
+1. Go to http://localhost:3001/settings
+2. Click the orange **"🔄 Sync Positions"** button (next to Restart Bot)
+3. View results in green success message
+
+### 2. Terminal Script
+```bash
+cd /home/icke/traderv4
+bash scripts/sync-positions.sh
+```
+
+### 3. Direct API Call
+```bash
+source /home/icke/traderv4/.env
+curl -X POST http://localhost:3001/api/trading/sync-positions \
+  -H "Authorization: Bearer ${API_SECRET_KEY}"
+```
+
+## 📊 What It Does
+
+**Fetches** all open positions from Drift (SOL-PERP, BTC-PERP, ETH-PERP)
+
+**Compares** against Position Manager's tracked trades
+
+**Removes** tracking for positions closed externally
+
+**Adds** tracking for unmonitored positions with:
+- Stop loss at configured %
+- TP1/TP2 at configured %
+- Emergency stop protection
+- Trailing stop (if TP2 hit)
+- MAE/MFE tracking
+
+**Result**: Dual-layer protection restored ✅
+
+## 🎯 Your Current Situation
+
+- **Before Sync:** 4.93 SOL SHORT open, NO software protection
+- **After Sync:** Position Manager monitors it every 2s with full TP/SL system
+
+## ⚠️ Limitations
+
+- Entry time unknown (assumes 1 hour ago - doesn't affect TP/SL)
+- Signal quality metrics missing (only matters for scaling feature)
+- Uses current config (not original config from when trade opened)
+- Synthetic position ID (manual-{timestamp} instead of real TX)
+
+## 📖 Full Documentation
+
+See: `docs/guides/POSITION_SYNC_GUIDE.md`