"""Dataset download instructions.

Both datasets must be downloaded manually from Roboflow Universe in COCO format.
The Roboflow API cannot be used because the cracks dataset (cracks-3ii36) has
no generated versions — the owner never created an exportable version.

Download locations:
  - Taping: https://universe.roboflow.com/objectdetect-pu6rn/drywall-join-detect
    → Export as COCO, place under data/raw/taping/
  - Cracks: https://universe.roboflow.com/fyp-ny1jt/cracks-3ii36
    → Export as COCO, place under data/raw/cracks/

Expected structure after download:
  data/raw/
  ├── taping/
  │   ├── train/
  │   │   ├── _annotations.coco.json
  │   │   └── *.jpg
  │   └── valid/
  │       ├── _annotations.coco.json
  │       └── *.jpg
  └── cracks/
      └── train/
          ├── _annotations.coco.json
          └── *.jpg
"""