docs:完善注释

entity/code.go

@@ -40,3 +40,10 @@ var (
 	OperateErr    = errors.New("操作失败")
 	EntNoFoundErr = errors.New("未查询到该企业详细信息")
 )
+
+const (
+	FunctionInstitutionUnclaimed = "机构取消认领"
+	FunctionDistributorUnclaimed = "经销商取消认领"
+	FunctionInstitutionClaim     = "机构认领"
+	FunctionDistributorClaim     = "经销商认领"
+)