fix(测试计划): 测试计划列表返回值问题

--bug=1040707 --user=王旭 【测试计划】计划创建成功后无创建人，描述填写了未反显，创建时间时间时间戳转换错误 https://www.tapd.cn/55049933/s/1517693

backend/services/test-plan/src/main/java/io/metersphere/plan/dto/response/TestPlanResponse.java

@@ -26,7 +26,7 @@ public class TestPlanResponse extends TestPlanStatisticsResponse {
     @Schema(description = "创建人名称")
     private String createUserName;
     @Schema(description = "创建时间")
-    private String createTime;
+    private Long createTime;
     @Schema(description = "模块")
     private String moduleName;
     @Schema(description = "模块Id")
@@ -38,4 +38,7 @@ public class TestPlanResponse extends TestPlanStatisticsResponse {
 
     @Schema(description = "测试计划组Id")
     private String groupId;
+
+    @Schema(description = "描述")
+    private String description;
 }

backend/services/test-plan/src/main/java/io/metersphere/plan/mapper/ExtTestPlanMapper.xml

@@ -39,9 +39,10 @@
         t.id,t.num,t.name,t.status,t.group_id,
         t.create_user AS createUser,
         createUser.name AS createUserName,
-        t.create_time,
-        t.module_id,
+        t.create_time as createTime,
+        t.module_id as moduleId,
         t.type,
+        t.description,
         t.tags
         FROM test_plan t
         INNER JOIN user createUser ON t.create_user = createUser.id