Fix backend to always return response for job forwarding - success/error messages ensure proper job assignment feedback

Fix progress message job_id to use integer ID instead of message ID for proper backend storage and web polling

Add progress-based timeout extension to prevent premature job timeouts during long-running operations

- Show actual worker name when available in job.result.worker
- Display 'Assigned to cluster' for distributed jobs
- Keep 'Local processing' for local jobs
- Better distinction between local and cluster processing

- Increase Job ID column width to 1.6fr for better readability
- Remove max-width restriction from job_id to allow full display
- Job IDs can now expand naturally within their allocated space

- Add empty progress div to template for every job row
- Update JavaScript to populate/clear text instead of creating/removing elements
- Prevents layout shift when jobs start/stop processing
- Maintains consistent column positioning

- Reduce grid gap to 0.2rem for tighter column spacing
- Adjust row padding to 0.5rem 0.75rem for more compact layout
- Better space utilization while maintaining readability

- Change grid-template-columns to: 0.3fr 1fr 1fr 2fr 1fr 1fr 1fr 1fr 1fr 1fr
- Move job progress to dedicated column 10
- Increase minimum width to 1600px for 10-column layout
- Better proportional spacing with smaller Queue ID column (0.3fr)
- Job progress now has its own dedicated column space