Update HUB API requests

[Burhan-Q]

After release of latest HUB API, bot inference requests no longer working

• [ ] use new format
• [ ] investigate account link authorization
• [ ] test adding new tasks

[Burhan-Q]

NOTES HUB API requests:

Ultralytics HUB Documentation reference

• f"https://api.ultralytics.com/v1/predict/{MODEL_ID}" is the new end point

  • this means users could pass in their own trained model
  • otherwise, need to use default model-id for the pretrained models (includes tasks besides detection)

• all inference arguments are passed into data keyword as a dictionary

  • conf : prediction confidence
  • size : prediction image size
  • iou : prediction iou threshold
  • url : image URL
  • normalize

    [!NOTE] Image URL can be passed directly to inference API

• HUB account API key is required as part of the headers

  • headers = {"x-api-key": f"API_KEY"}
  • would be preferred if there was a means to obtain a key with zero intervention from the bot (linked/connected account) but the Discord docs don't make it obvious how to accomplish this (to me)

• inference results returned as part of .json() method of response

  • for detect results, response is:

{data: [
  {
    class: int,
    confidence: float,
    name: str,
    width: float,
    height: float,
    xcenter: float,
    ycenter: float,
  }, 
  {...}, # additional objects detected
]