[BUG] The time range of alert summary should shift forward by one bucket time range

[yubonluo]

What is the bug? When summary an alert, the selected time range is alert[0].endTime-bucketTime --> alert[0].endTime, and the wrong data cannot be obtained in this time range. The correct time range should be: alert[0].startTime-bucketTime --> alert[0].endTime-bucketTime.

How can one reproduce the bug? Steps to reproduce the behavior:

1. Create a monitor and set the bucket to 1d
2. Prepare some error data
3. Trigger alert
4. End the error data
5. The alert will end and complete.
6. Summary the alert

What is the expected behavior? A clear and concise description of what you expected to happen.

What is your host/environment?

• OS: [e.g. iOS]
• Version [e.g. 22]
• Plugins

Do you have any screenshots? If applicable, add screenshots to help explain your problem.

Do you have any additional context? Add any other context about the problem.

[andrross]

Catch All Triage - 1 2