Add test audio sample (001.wav)

This is the audio file used for the ASR/STT benchmark evaluation.
Users can now listen to the actual test sample in the Gradio Space.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

audio/001.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ec9817f260e7e10bd3adaa3dc142a749868bea01637b4765b2caea5bb996beda
+size 10786860