CRITICAL BUGS FIXED (Nov 19, 2025):
1. MAE/MFE Bug:
- Was storing: account percentage (profit % × leverage)
- Example: 1.31% move × 15x = 19.73% stored as MFE
- Should store: actual dollar P&L (81 not 19.73%)
- Impact: Telegram shows 'Max Gain: +19.73%' instead of '+.XX'
- Fix: Changed from accountPnL (leverage-adjusted %) to currentPnLDollars
- Lines 964-987: Removed accountPnL calculation, use currentPnLDollars
2. Duplicate Notification Bug:
- handleExternalClosure() was checking if trade removed AFTER removal
- Result: 16 duplicate Telegram notifications with compounding P&L
- Example: 6 → 2 → 11 → ... → 81 (16 notifications for 1 close)
- Fix: Check if trade already removed BEFORE processing
- Lines 382-391: Move duplicate check to START of function
- Early return prevents notification send if already processed
3. Database Compounding (NOT A BUG):
- Nov 17 fix (Common Pitfall #49) still working correctly
- Only 1 database record with 81 P&L
- Issue was notification duplication, not DB duplication
IMPACT:
- MAE/MFE data now usable for TP/SL optimization
- Telegram notifications accurate (1 per close, correct P&L)
- Database analytics will show real dollar movements
- Next trade will have correct Max Gain/Drawdown display
FILES:
- lib/trading/position-manager.ts: MAE/MFE calculation + duplicate check
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