In the `spaceranger_mapping` workflow, `slide`, `area` and `image` should be `required: true`.

[tverbeiren]

https://github.com/openpipelines-bio/openpipeline_spatial/blob/main/src/workflows/ingestion/spaceranger_mapping/config.vsh.yaml:

...
      - name: --image
        type: file
        required: false
        description: | 
          H&E or fluorescence microscope image in TIFF or JPG format. 
          Required for standard Visium workflow, optional when using --cytaimage for CytAssist workflow.
        example: "brightfield.tif"
...
      - name: --slide
        type: string
        description: Visium slide serial number (e.g., 'V10J25-015')
        required: false
        example: "V10J25-015"
      - name: --area
        type: string
        description: Visium capture area identifier (e.g., 'A1')
        required: false
        example: "A1"