[BE-34] Implement Scheduler module for warranty and maintenance alerts

[yusuftomilola]

Overview

Implement a Scheduler module that runs background jobs to alert users about upcoming warranty expirations and scheduled maintenance inside backend/contrib/.

Location

All work must be inside backend/contrib/src/scheduler/.

Acceptance Criteria

• SchedulerModule and SchedulerService created using @nestjs/schedule
• @Cron job runs daily at 8am: finds assets with warrantyExpiration within the next 30 days, logs a warning to console (or emits a notification event)
• Second @Cron job runs daily at 9am: finds Maintenance records with scheduledDate within the next 7 days and status SCHEDULED, logs warnings
• ScheduleModule.forRoot() imported in AppModule
• Jobs are testable by calling the service methods directly

[pheobeayo]

@pheobeayo has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

Hello, I would like to take up this issue meeting all requirements.

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[nafsonig]

@nafsonig has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

Let me professionally implement this task as soon as possible

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Congratulations, @nafsonig! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on April 29, 2026.

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[drips-wave]

This issue has been completed by @nafsonig as part of the Stellar Wave Program's 4th Wave 🥳

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