* feat: add worker_group_job_stats table for job metrics aggregation
- Add new table with hour timestamp, worker group, script lang, workspace_id, job count and total duration
- Workers accumulate stats in memory and update hourly via sum aggregation
- Monitor.rs cleans up rows older than 60 days periodically
- Stats are flushed on worker shutdown to prevent data loss
Co-authored-by: windmill-internal-app[bot] <windmill-internal-app[bot]@users.noreply.github.com>
* all
* all
* ee-repo-ref
* nits
* nits
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Co-authored-by: claude[bot] <209825114+claude[bot]@users.noreply.github.com>
Co-authored-by: windmill-internal-app[bot] <windmill-internal-app[bot]@users.noreply.github.com>
Co-authored-by: Ruben Fiszel <ruben@windmill.dev>
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