feat(cron): 增加定时任务执行记录弹窗 / add execution history dialog

[mqqss]

概述 / Summary

为定时任务增加执行记录查看功能。用户可以从表格操作列或卡片视图的更多菜单打开弹窗，查看历史执行结果。
Add cron execution history viewing. Users can open a modal from the table action column or the card view's more menu to inspect previous execution results.

变更内容 / Changes

• 增加带 Agent 所有权校验的分页执行记录 API。
  Add a paginated execution history API with agent ownership checks.

• 复用现有 cron.run_ok 和 cron.run_failed 审计记录，无需数据库迁移。
  Reuse existing cron.run_ok and cron.run_failed audit records without requiring a database migration.

• 在弹窗表格中展示完成时间、执行状态和失败原因。
  Display completion time, execution status, and failure reason in a modal table.

• 在表格操作列和卡片视图中增加执行记录入口。
  Add execution history entry points to both table and card views.

• 增加中英文界面文案、自动化测试和 Changelog。
  Add localized UI copy, automated tests, and a changelog entry.

验证 / Validation

• make all：1951 passed，12 skipped，31 deselected。
  make all: 1951 passed, 12 skipped, and 31 deselected.

• Dashboard TypeScript 检查和生产构建通过。
  Dashboard TypeScript checks and the production build passed.

• 本次变更的前端文件通过 ESLint。
  Changed frontend files passed ESLint.

说明 / Notes

当前记录展示完成时间、状态和失败原因；现有审计数据不区分手动触发与自动调度。
The history currently shows completion time, status, and failure reason; existing audit data does not distinguish manual runs from scheduled runs.

[jubaoliang]

我们需要评估一下