Implement complete ONNX inference pipeline with NPU acceleration:
- Add OnnxClassifier for text classification via ONNX Runtime
- Integrate HuggingFace tokenizers for text preprocessing
- Support tokenization with padding/truncation
- Implement classification with probabilities (softmax)
- Add distilbert_tokenizer() model config for download
Features:
- Tokenize text input to input_ids and attention_mask
- Run NPU-accelerated inference via DirectML
- Extract logits and convert to probabilities
- RefCell pattern for session management
Note: Current blocker is Windows linker C runtime mismatch between
esaxx-rs (static MT) and ONNX Runtime (dynamic MD). Code compiles
but linking fails. Resolution in progress.
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Co-Authored-By: Claude <noreply@anthropic.com>
