feat(self-operated): persist continuous collection and frozen coverage

lastleg-service/src/main/resources/openapi/self-operated-analytics-v1.yaml

@@ -732,6 +732,8 @@ components:
     Task:
       type: object
       properties:
+        createdAt: {type: string, format: date-time, nullable: true, description: 当前任务创建时间，重试和阶段切换不重置}
+        elapsedSeconds: {type: string, nullable: true, description: 自创建起的累计秒数，含排队和重试；活动任务截止本次读取，终态任务截止任务最后更新时间；不是单次执行耗时}
         taskNo: {type: string, nullable: true}
         taskType: {type: string, nullable: true}
         dataFamily: {type: string, nullable: true}
@@ -807,7 +809,7 @@ components:
         executionEnabled: {type: boolean, nullable: true}
         publicationEnabled: {type: boolean, nullable: true}
         disabledReason: {type: string, nullable: true}
-        nextScheduledAt: {type: string, format: date-time, nullable: true}
+        nextScheduledAt: {type: string, format: date-time, nullable: true, description: 自动采集下一计划时刻；显式连续BUSINESS模式下销量为下个北京时间00点05分，库存沿仓库计划；执行被禁用时为空，不代表当前任务预计完成时间}
         observedAt: {type: string, format: date-time, nullable: true}
         initialFrom: {type: string, format: date-time, nullable: true}
         initialUntil: {type: string, format: date-time, nullable: true}