[OA][Fullstack] - Due Date Functionality for OAs

[LOTaher]

[OA][Fullstack] - Due Date Functionality for OAs

Changes

• Added the luxon dependency to easily use date time operations.
• Updated deadline which now is inputtable via the SendAssessmentModal which provides a Date picker to choose from before sending assessments to candidates.
  • As noted in the modal, this date will auto transform to 11:59 PM Eastern of that day.
  • A future TODO would be to incorporate dynamic timezone due dates with something like UTC. This is functional for now.
• To handle overdue OAs, I created scheduler which is another new service in our compose stack. This is simply a setTimeout and a setInterval that calls a new internal/ API route which checks for overdue OAs and marks them as expired. This is a solution specifically tailored to the self hosted sarge instances.
• Cleaned up Button usage across the Modals so they are consistent.
• Created an AssessmentExpired screen (see screenshot below)
• Now handling the case where a user's assessment that is in progress cannot be refreshed and started over. This means that restarting your browser during an OA will auto submit your OA. To note, this is only when the assessment is IN_PROGRESS (they've pressed begin). If they're only in the intro, then they may restart freely.

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Notes

TODO before merge:

• make sure disconnected snapshots are being sent
• make sure scheduler works in installer and on dev

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Screenshots

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Checklist

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Closes

Closes #310

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Project	Deployment	Actions	Updated (UTC)
sarge	Ready	Preview, Comment	Jun 19, 2026 3:34pm

[bderbs30]

The date picker design could be aligned with the rest of the ui - (design wise)

[bderbs30]

One general thing I noticed about the scheduler is that there will be a one-day lag with marking OAs as expired. This has to do with the conversions to UST from EST. I'll comment further in the areas where I traced this .

Though this isn't really a big issue (the assessments themselves from the candidate side would still be blocked since we check against the deadline date and not the status)