Fix: install all deps in Dockerfile before USER user

Dockerfile

@@ -7,6 +7,8 @@ RUN apt-get update && \
       build-essential && \
     rm -rf /var/lib/apt/lists/*
 
+RUN uv pip install --system fastapi uvicorn python-multipart requests beautifulsoup4 lxml jinja2 yt-dlp huggingface_hub gTTS pillow edge-tts python-dateutil httpx
+
 RUN useradd -m -u 1000 user
 USER user
 
@@ -22,8 +24,6 @@ ENV HOME=/home/user \
 WORKDIR /app
 COPY --chown=user . /app
 
-RUN uv pip install --system -r requirements.txt
-
 EXPOSE 7860
 
 CMD ["python", "sandbox_server.py"]