Night Shift: fix timeout memory leaks in dashboard #15

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✅ Completed bug detection (1m 12s)
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Final Result: Bugbot completed review and found 1 potential issue.

Request ID: serverGenReqId_79efa028-d9be-4ce2-a127-a41caaf58ea0

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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