fix: retryClose saves trade record and persists to DB on success

trader.go

@@ -51,6 +51,15 @@ type ArbPosition struct {
 	RealizedPnl float64
 	ErrorLog    string
 
+	// Exit metadata — saved when close is first attempted; reused by retryClose
+	ExitDiffPct     float64 // spread % at exit trigger
+	ExitNetPnl      float64 // net PnL % at exit trigger
+	ExitLongPnl     float64 // long leg PnL %
+	ExitShortPnl    float64 // short leg PnL %
+	ExitTotalFees   float64 // total fee %
+	ExitConvergence string  // convergence label
+	ExitReasonText  string  // reason for exit
+
 	// Track all entry prices for weighted-average PnL across scale-ins (Issue #2)
 	LongEntryPrices  []float64 // all long entry prices (initial + scale-ins)
 	ShortEntryPrices []float64 // all short entry prices (initial + scale-ins)
@@ -534,6 +543,15 @@ func (t *Trader) checkExit(pos *ArbPosition, bgP, hlP, diffPct float64, notifier
 	pos.LongLeg.ExitPrice = longCurrent
 	pos.ShortLeg.ExitPrice = shortCurrent
 
+	// Save exit metadata for retryClose in case closeBothLegs fails
+	pos.ExitDiffPct = diffPct
+	pos.ExitNetPnl = netPnl
+	pos.ExitLongPnl = longPnl
+	pos.ExitShortPnl = shortPnl
+	pos.ExitTotalFees = totalFees
+	pos.ExitConvergence = convergenceLabel
+	pos.ExitReasonText = exitReason
+
 	closeErr := t.closeBothLegs(pos)
 
 	if closeErr != "" {
@@ -691,17 +709,41 @@ func (t *Trader) retryClose(pos *ArbPosition, bgP, hlP float64, notifier *Notifi
 
 	closeErr := t.closeBothLegs(pos)
 	if closeErr == "" {
-		// All legs finally closed — mark as done
+		// All legs finally closed — record + persist
 		pos.Status = "closed"
 		pos.ExitedAt = time.Now()
+
+		elapsed := time.Since(pos.StartedAt)
+		record := TradeRecord{
+			Coin:        pos.Coin,
+			Direction:   pos.Direction,
+			EntrySpread: pos.EntrySpread,
+			ExitSpread:  pos.ExitDiffPct,
+			PnlPct:      pos.ExitNetPnl,
+			Convergence: pos.ExitConvergence,
+			Reason:      pos.ExitReasonText,
+			Duration:    elapsed.Round(time.Second).String(),
+			OpenedAt:    pos.StartedAt,
+			ClosedAt:    pos.ExitedAt,
+			ScaleLevels: pos.ScaleLevels,
+			AmountUSD:   pos.AmountUSD,
+		}
+
 		t.mu.Lock()
 		delete(t.positions, pos.Coin)
 		t.lastTradeTime[pos.Coin] = time.Now()
+		t.closedTrades = append(t.closedTrades, record)
 		t.mu.Unlock()
+
+		if t.db != nil {
+			t.persistTrade(pos, pos.ExitDiffPct, pos.ExitConvergence, pos.ExitReasonText,
+				pos.ExitNetPnl, pos.ExitLongPnl, pos.ExitShortPnl, pos.ExitTotalFees)
+		}
+
 		notifier.Send(fmt.Sprintf(
 			"<b>[平仓重试成功]</b>  %s/USDT  %s\n"+
 				"  之前失败: %s\n"+
-				"  已成功关掉所有腿\n", pos.Coin, pos.Direction, pos.ErrorLog))
+				"  已成功关掉所有腿 | 盈亏: %+.4f%%\n", pos.Coin, pos.Direction, pos.ErrorLog, pos.ExitNetPnl))
 		return
 	}