Qwen3-Reranker-4B (OpenVINO IR conversion)

This OpenVINO IR conversion is a derivative of Qwen/Qwen3-Reranker-4B
(https://huggingface.co/Qwen/Qwen3-Reranker-4B), redistributed under the
Apache License, Version 2.0.

Original work:
  Copyright 2024-2025 Alibaba Cloud (Qwen Team).
  Licensed under the Apache License, Version 2.0.

Modifications by the redistributor of this OpenVINO conversion:
  - Exported model weights to OpenVINO IR via optimum-intel.
  - Applied NNCF INT8 (asymmetric, weight-only) quantization.
  - Generated OpenVINO Tokenizer / Detokenizer IR via openvino-tokenizers.

No model weights were retrained. Tokenizer vocabulary, chat template, and
generation config are preserved verbatim from the upstream release.