fix

Dockerfile

@@ -4,14 +4,23 @@ ENV PYTHONUNBUFFERED=1 \
     PIP_NO_CACHE_DIR=1 \
     HF_HOME=/data/cache
 
-RUN apt-get update
+# System dependencies required by TTS/XTTS for audio processing
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+        ffmpeg \
+        libsndfile1 \
+        espeak-ng \
+        git \
+    && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
 
 COPY requirements.txt ./
-RUN pip install --upgrade pip && pip install -r requirements.txt
+RUN pip install --upgrade pip \
+    && pip install --no-cache-dir -r requirements.txt
 
 COPY app.py ./
 
 ENV PORT=7860
+EXPOSE 7860
 CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]