[update] 运行评价-路口评价指数为空时显式返回零值

signal-optimize-service/src/main/java/net/wanji/opt/vo/RunningEvaluateIndexStatusVO.java

@@ -14,6 +14,6 @@ public class RunningEvaluateIndexStatusVO {
     private String time;
 
     @ApiModelProperty(value = "纵坐标数值")
-    private Double index;
+    private Double index = 0.0;
 
 }