feat: find best_detections for classifications (#631)

[veckatimest]

✅ DoD

• [x] Resolves #631
• [ ] API docs updated na
• [ ] Release notes updated na
• [ ] Deployment notes updated na
• [ ] Unit or integration tests added na
• [ ] DB migrations tested na

(use na when API docs (Release notes, etc) do not need to be updated)

📝 Summary

Now when "classifications" query parameter is passed to GET /classifier-jobs/{jobId}/best-detections or GET /classifier-jobs/{jobId}/best-detections/summary The returned detections will be related to specific classification_id

🛑 Problems

• Write any discovered & unresolved problems (link to created Jira issues)

💡 More ideas

Write any more ideas you have