Fix: self-contained (inline) stem.onnx — no external .data sidecar

Upload embed_int8.json with huggingface_hub

Upload embed_scales.bin with huggingface_hub

Upload embed_int8.bin with huggingface_hub

Upload stem.onnx with huggingface_hub

Upload bt4_tapped_fp16.onnx with huggingface_hub

Upload qwen_grafted_kv_int4.onnx.data with huggingface_hub

Upload qwen_grafted_kv_int4.onnx with huggingface_hub

initial commit