Argus v1.5: consolidate to one method per task

Argus v1.4: consolidate classification to softmax-only, remove kNN

Add INT8 weight-only quantization via torchao

Argus v1.2: add DPT multi-scale depth decoder alongside the linear probe

Argus v1.1: add trained FCOS detection head as the fifth task

Add trained linear softmax classifier alongside the kNN head

Add batch inference, per-task confidence, ONNX export

Argus v1.0