H-Optimus (H1) tile embedding

curl --request POST \
  --url http://localhost:8080/api/embed/h1 \
  --header 'Content-Type: application/json' \
  --data '
{
  "image_data": "<base64-png-224x224>",
  "slide_name": "slide_A",
  "x": 0,
  "y": 0,
  "width": 224,
  "height": 224,
  "tissue_ratio": 0.8,
  "patch_idx": 0,
  "resolution": 0.5
}
'

{
  "output": [
    123
  ],
  "slide_name": "<string>",
  "x": 123,
  "y": 123,
  "width": 123,
  "height": 123,
  "tissue_ratio": 123,
  "patch_idx": 123,
  "resolution": 123
}