feat: track service unit cost of runs in database (SBP-445)

[marius-mather]

Pull Request

Summary

SBP-445: retrieve the usage report (uploaded to S3) and record the actual service units for the workflow run in the database

Changes

• Add UsageReport.csv to results/output specs so it gets synced along with other results
• Add service_usage column to WorkflowRun DB table
• Sync usage when accessing job list/job detail endpoints (since that's where other syncs are currently triggered)
• Add service_usage column to DB admin view

How to Test

Run uv run pytest

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• I have added tests that prove my fix is effective or that my feature works
• I have added or updated documentation where necessary
• I have run linting and unit tests locally
• The code follows the project's style guidelines

[amandazhuyilan]

Looks good to me - looking forward to seeing some csv generated once this is in