Fix TTS librosa import: downgrade TTS to 0.21.3 and add audio deps

Dockerfile

@@ -14,7 +14,10 @@ RUN apt-get update && apt-get install -y \
     g++ \
     python3-dev \
     libsndfile1 \
+    libsndfile1-dev \
     ffmpeg \
+    libasound2-dev \
+    portaudio19-dev \
     && rm -rf /var/lib/apt/lists/*
 
 # Copy requirements first for better caching

requirements-hf.txt

@@ -12,7 +12,7 @@ accelerate==1.2.1
 # Audio processing
 soundfile==0.12.1
 librosa==0.10.2.post1
-TTS==0.22.0
+TTS==0.21.3
 
 # Translation models
 sentencepiece==0.2.0