支持提号完成后财务调整

backend/internal/modules/pickup/service.go

@@ -2,6 +2,7 @@ package pickup
 
 import (
 	"context"
+	"strings"
 
 	"hfb_sys/backend/internal/auditlog"
 )
@@ -63,6 +64,39 @@ func (s *Service) UpdateProfit(ctx context.Context, pickupID uint64, req UpdateP
 	return s.repo.UpdateProfit(ctx, pickupID, req, adminID, meta)
 }
 
+func (s *Service) CreateFinancialAdjustment(ctx context.Context, pickupID uint64, req FinancialAdjustmentRequest, adminID uint64, meta auditlog.Meta) (*PickupDTO, error) {
+	if s.repo == nil {
+		return nil, ErrDependencyUnavailable
+	}
+	if pickupID == 0 || (req.ProfitAmountCent == nil && req.SettleAmountCent == nil) || strings.TrimSpace(req.Reason) == "" {
+		return nil, ErrFinancialAdjustmentInvalid
+	}
+	if (req.ProfitAmountCent != nil && *req.ProfitAmountCent < 0) || (req.SettleAmountCent != nil && *req.SettleAmountCent < 0) {
+		return nil, ErrFinancialAdjustmentInvalid
+	}
+	return s.repo.CreateFinancialAdjustment(ctx, pickupID, req, adminID, meta)
+}
+
+func (s *Service) ListFinancialAdjustments(ctx context.Context, pickupID uint64) ([]FinancialAdjustmentDTO, error) {
+	if s.repo == nil {
+		return nil, ErrDependencyUnavailable
+	}
+	if pickupID == 0 {
+		return nil, ErrPickupNotFound
+	}
+	return s.repo.ListFinancialAdjustments(ctx, pickupID)
+}
+
+func (s *Service) SettleFinancialAdjustment(ctx context.Context, adjustmentID uint64, req FinancialAdjustmentSettlementRequest, adminID uint64, meta auditlog.Meta) error {
+	if s.repo == nil {
+		return ErrDependencyUnavailable
+	}
+	if adjustmentID == 0 {
+		return ErrFinancialAdjustmentNotFound
+	}
+	return s.repo.SettleFinancialAdjustment(ctx, adjustmentID, req, adminID, meta)
+}
+
 func (s *Service) Cancel(ctx context.Context, pickupID uint64, reason string, adminID uint64, meta auditlog.Meta) error {
 	if s.repo == nil {
 		return ErrDependencyUnavailable