add cta

internal/processor/letter_outgoing_processor.go

@@ -573,12 +573,47 @@ func (p *LetterOutgoingProcessorImpl) getApprovalsByStepForRevision(ctx context.
 }
 
 // isStepCompleted checks if all required approvals in a step are approved
+// For parallel groups, at least one approval per group must be completed
 func (p *LetterOutgoingProcessorImpl) isStepCompleted(stepApprovals []entities.LetterOutgoingApproval) bool {
+	// Group approvals by parallel group
+	approvalsByParallelGroup := make(map[int][]entities.LetterOutgoingApproval)
 	for _, approval := range stepApprovals {
-		if approval.IsRequired && approval.Status != entities.ApprovalStatusApproved {
+		approvalsByParallelGroup[approval.ParallelGroup] = append(
+			approvalsByParallelGroup[approval.ParallelGroup], 
+			approval,
+		)
+	}
+	
+	// Check each parallel group
+	for _, groupApprovals := range approvalsByParallelGroup {
+		// For each parallel group, check if it has at least one approved
+		groupHasApproval := false
+		hasRequiredPending := false
+		
+		for _, approval := range groupApprovals {
+			if approval.Status == entities.ApprovalStatusApproved {
+				groupHasApproval = true
+			}
+			if approval.IsRequired && approval.Status != entities.ApprovalStatusApproved {
+				hasRequiredPending = true
+			}
+		}
+		
+		// If this group has required approvals that are still pending, step is not complete
+		if hasRequiredPending {
 			return false
 		}
+		
+		// If this group has no approvals at all and contains required approvals, step is not complete
+		if !groupHasApproval {
+			for _, approval := range groupApprovals {
+				if approval.IsRequired {
+					return false
+				}
+			}
+		}
 	}
+	
 	return true
 }