feat: complete SOP version management

internal/sop/validator.go

@@ -179,12 +179,14 @@ func ValidateForPublish(startNodeKey string, nodes []model.SOPNode, edges []mode
 	}
 
 	defaultPaths := map[string]int{}
+	conditionalPaths := map[string]int{}
 	for _, edge := range edges {
 		adjacency[edge.SourceNodeKey] = append(adjacency[edge.SourceNodeKey], edge.TargetNodeKey)
 		if isDefaultCondition(edge.Condition) {
 			defaultPaths[edge.SourceNodeKey]++
 			continue
 		}
+		conditionalPaths[edge.SourceNodeKey]++
 		var rule interface{}
 		if err := json.Unmarshal(edge.Condition, &rule); err != nil {
 			continue
@@ -196,6 +198,11 @@ func ValidateForPublish(startNodeKey string, nodes []model.SOPNode, edges []mode
 			problems = append(problems, fmt.Sprintf("节点 %s 配置了多条默认路径", source))
 		}
 	}
+	for source := range conditionalPaths {
+		if defaultPaths[source] == 0 {
+			problems = append(problems, fmt.Sprintf("节点 %s 包含条件路径但没有默认路径", source))
+		}
+	}
 
 	for _, node := range nodes {
 		var config map[string]interface{}