BMT background-removal validation prototype

Model: CoderViking/birefnet-lite-onnx (MIT)
Revision: dc06453148f01ef4131f17e9b791345e32e8ee78
File: birefnet-lite-1024.onnx (199681624 bytes)
SHA256: 50a57872cc739192446da2a934159f957c81af8b5a161dfda8e3daa51660ca67
Source: https://huggingface.co/CoderViking/birefnet-lite-onnx/tree/dc06453148f01ef4131f17e9b791345e32e8ee78
Export attribution: CoderViking. Original model: Copyright (c) 2024 ZhengPeng.
Upstream weights: ZhengPeng7/BiRefNet_lite, revision 7838f1c (see retained model card).
The export contains no standalone LICENSE; its model card declares MIT inherited
from BiRefNet. The complete upstream license and pinned model card are retained:
  licenses/BiRefNet-MIT.txt
  licenses/CoderViking-model-card.md

ONNX Runtime Web: 1.31.0-dev.20260914-8d85527a0 (MIT)
Copyright (c) Microsoft Corporation. All rights reserved.
Source: https://github.com/microsoft/onnxruntime/tree/8d85527a0
  licenses/ONNX-Runtime-MIT.txt
  licenses/ONNX-Runtime-ThirdPartyNotices.txt
Additional installed JavaScript dependency license texts are retained in licenses/:
  flatbuffers-Apache-2.0.txt
  long-Apache-2.0.txt
  platform-MIT.txt
  protobufjs-BSD-3-Clause.txt
The upstream third-party notice is retained in full; it includes components for
multiple runtime distributions, not all of which are present in this browser build.

All paths above are relative to /static/background-remover/.
No BRIA models or AGPL background-removal wrappers are used.