feat: Add Telegram notification for TP1 partial closes

**ENHANCEMENT:** TP1 partial closes now send Telegram notifications

- Previously only full position closes (runner exit) sent notifications
- TP1 hit → 60% close → User not notified until runner closed later
- User couldn't see TP1 profit immediately

**FIX:** Added notification in executeExit() partial close branch
- Shows TP1 realized P&L (e.g., +$22.78)
- Shows closed portion size
- Includes "60% closed, 40% runner remaining" in exit reason
- Same format as full closes: entry/exit prices, hold time, MAE/MFE

**IMPACT:** User now gets immediate feedback when TP1 hits
- Removed TODO comment at line 1589
- Both TP1 and runner closures now send notifications

**FILES:** lib/trading/position-manager.ts line ~1575-1592
**DEPLOYED:** Nov 20, 2025 17:42 CET

lib/trading/position-manager.ts

@@ -1581,10 +1581,22 @@ export class PositionManager {
 
         // Persist updated trade state so analytics reflect partial profits immediately
         await this.saveTradeState(trade)
+        
+        // Send Telegram notification for TP1 partial close
+        await sendPositionClosedNotification({
+          symbol: trade.symbol,
+          direction: trade.direction,
+          entryPrice: trade.entryPrice,
+          exitPrice: result.closePrice || currentPrice,
+          positionSize: closedUSD, // Show only the closed portion
+          realizedPnL: result.realizedPnL || 0,
+          exitReason: `${reason} (${percentToClose}% closed, ${(100 - percentToClose).toFixed(0)}% runner remaining)`,
+          holdTimeSeconds: Math.floor((Date.now() - trade.entryTime) / 1000),
+          maxDrawdown: Math.abs(Math.min(0, trade.maxAdverseExcursion)),
+          maxGain: Math.max(0, trade.maxFavorableExcursion),
+        })
       }
 
-      // TODO: Send notification
-
     } catch (error) {
       console.error(`❌ Error executing exit for ${trade.symbol}:`, error)
     }