Tile Server (OpenSlide + FastAPI)

Run:
  pip install -r requirements.txt
  uvicorn app.main:app --reload --port 8001

Endpoints:
  POST /slides/{slide_id}/load
    Body: {"path": "C:/path/to/slide.svs"}

  POST /slides/{slide_id}/upload
    Form-data: file=<your slide.svs>

  GET /slides/{slide_id}/metadata

  GET /tiles/{slide_id}/{level}/{x}/{y}.jpg?tile_size=256