{
  "source_pdf": "simple_panel.pdf",
  "extraction_timestamp": "2026-01-01T00:00:00Z",
  "part_name": "side_panel",
  "overall_dimensions": {
    "width_mm": 600,
    "height_mm": 720,
    "depth_mm": 18
  },
  "parts": [],
  "raw_annotations": [
    "Scale: 1:1",
    "Material: 18mm MDF"
  ]
}