Storage layout

The system stores uploaded inputs and run artefacts on disk (under STORAGE_ROOT).

The current v2 layout used by the dashboard is:

STORAGE_ROOT/
  inputs/
    {input_id}_{original_filename}
  runs/{run_id}/
    logs/
    results/
      csv/
      json/
      markdown/
      other/
      png/

Notes:

• Artefacts are listed via GET /v2/runs/{run_id}/artifacts.
• The exact subfolders are runner-defined, but the dashboard expects the common csv/, json/, markdown/, other/, png/ convention.