Update Dockerfile

Dockerfile

@@ -1,10 +1,10 @@
 FROM python:3.11-slim
 
-# System dependencies for soundfile & audio
+# ✅ CRITICAL: Install espeak-ng — KittenTTS REQUIRES it for phonemization
 RUN apt-get update && apt-get install -y --no-install-recommends \
+    espeak-ng \
     libsndfile1 \
     ffmpeg \
-    build-essential \
     && rm -rf /var/lib/apt/lists/*
 
 # Create non-root user (HF Spaces requires uid 1000)
@@ -14,16 +14,14 @@ ENV PATH="/home/user/.local/bin:$PATH"
 
 WORKDIR /home/user/app
 
-# Install Python dependencies
+# Install Python deps
 COPY --chown=user:user requirements.txt .
 RUN pip install --no-cache-dir --upgrade pip && \
     pip install --no-cache-dir -r requirements.txt
 
-# Copy application code
+# Copy application
 COPY --chown=user:user . .
 
-# Expose port 7860 (HF Spaces default)
 EXPOSE 7860
 
-# Start the app
 CMD ["python", "app.py"]