refactor: refactor expired trash items job to bullmq

[apsantiso]

• Jobs module is not initialized unless envar EXECUTE_JOBS = true (we can remove the check from all tasks)
• Expired trash items cronjob refactored to bullMQ

How it works

The trash cleanup job was refactored from a plain NestJS cron task (with a Redis lock) to a BullMQ-backed queue.

The flow is split into two classes:

TrashCleanupScheduler — runs every 10 minutes via @Cron. It queries all tiers that have a TrashRetentionDays feature limit configured and enqueues one BullMQ job per tier into the trash-cleanup queue.

TrashCleanupProcessor — a @Processor (BullMQ worker) with concurrency: 2, meaning up to 2 tier jobs run in parallel at a time. For each job it:

1. Fetches the retention limit for the tier and computes the cutoff date. (so if a job is retried, it has a cutoffDate updated)
2. Skips if the cutoff is before the first deployment date (period of grace we're giving to all users).
3. Creates a job_executions record via startJob.
4. Deletes expired files and folders in batches of 100, looping until a partial batch is returned.
5. Marks the execution as completed or failed accordingly.

Duplicate job prevention

When the scheduler enqueues each tier it sets a deterministic jobId:

jobId: trash-cleanup:tier:${tier.id}

BullMQ silently ignores queue.add calls for a jobId that already exists in the queue (waiting or active). This means if the cron fires again before the previous run finishes, no duplicate job is created for that tier.

Env variables

REDIS_JOBS_CONNECTION_STRING=redis://@:

This is the Redis instance BullMQ uses for the queue. It is separate from the existing REDIS_CONNECTION_STRING used for general caching.

[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
99.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[sg-gs]

Configuring this on Monday, to avoid surprises haha

[sg-gs]

REDIS_JOBS_CONNECTION_STRING environment variable has been added on production @apsantiso