docs: HiFT 声码器/RTF 更新（保留 YAML 元数据）

HiFT vocoder: examples/audio/s2_student1.wav

HiFT vocoder: examples/audio/s1_student1.wav

HiFT vocoder: examples/audio/s0_student1.wav

HiFT vocoder: examples/audio/clone_output.wav

HiFT vocoder: reports/hift_compile_report.md

HiFT vocoder: model_convert/hift_export.py

HiFT vocoder: cpp/include/hift_dsp.hpp

HiFT vocoder: cpp/assets/hift_linear_b.bin

HiFT vocoder: cpp/assets/hift_linear_w.bin

HiFT vocoder: cpp/bin/openai_server

HiFT vocoder: python/openai_server.py

HiFT vocoder: python/hift_linear_b.npy

HiFT vocoder: python/hift_linear_w.npy

HiFT vocoder: python/hift_vocoder.py

HiFT vocoder: models/hifift_decode.axmodel

HiFT vocoder: models/hifift_f0.axmodel

HiFT vocoder: README.md

examples: clone_output.wav 更新为 step18000 版本

examples: s2_teacher10.wav 更新为 step18000 版本

examples: s2_student1.wav 更新为 step18000 版本

examples: s1_teacher10.wav 更新为 step18000 版本

examples: s1_student1.wav 更新为 step18000 版本

examples: s0_teacher10.wav 更新为 step18000 版本

examples: s0_student1 更新为 step18000（响度归一化）

examples: 示例音频更新为 step18000（学生响度归一化 A/B + 克隆输出电平对齐参考人声）

docs: HF README 精简音色克隆细节（保留示例音频，细节指向 GitHub）

Upload reports/simulate_report.md with huggingface_hub

Upload models/model_clone.axmodel with huggingface_hub

Upload models/model.axmodel with huggingface_hub

Upload reports/simulate_report.md with huggingface_hub

Upload examples/audio/clone_output.wav with huggingface_hub

Upload models/model_clone.axmodel with huggingface_hub

Upload models/model.axmodel with huggingface_hub

Upload README.md with huggingface_hub

Upload python/openai_server.py with huggingface_hub

Upload examples/audio/clone_output.wav with huggingface_hub

Upload README.md with huggingface_hub

Upload examples/audio/clone_output.wav with huggingface_hub

Upload examples/audio/clone_reference.wav with huggingface_hub

Upload README.md with huggingface_hub

Upload reports/runonboard_report.md with huggingface_hub

Upload python/extract_voice_embedding.py with huggingface_hub

Upload python/openai_server.py with huggingface_hub

Upload models/model_clone_meta.json with huggingface_hub

Upload models/model_clone.axmodel with huggingface_hub

Upload models/model.axmodel with huggingface_hub

Upload README.md with huggingface_hub

Upload python/extract_voice_embedding.py with huggingface_hub

Upload reports/runonboard_report.md with huggingface_hub