Add Dockerfile and supervisord config for HuggingFace Spaces deployment

Dockerfile

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+FROM python:3.10-slim
+
+# HuggingFace Spaces runs as a non-root user
+RUN useradd -m -u 1000 user
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    libgl1-mesa-glx \
+    libglib2.0-0 \
+    libsm6 \
+    libxext6 \
+    libxrender-dev \
+    supervisor \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Python dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy project files
+COPY --chown=user:user . .
+
+# Supervisor config to run both FastAPI and Streamlit
+COPY supervisord.conf /etc/supervisor/conf.d/supervisord.conf
+
+USER user
+
+# HF Spaces expects port 7860
+EXPOSE 7860
+
+CMD ["/usr/bin/supervisord", "-c", "/etc/supervisor/conf.d/supervisord.conf"]

supervisord.conf

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+[supervisord]
+nodaemon=true
+logfile=/tmp/supervisord.log
+pidfile=/tmp/supervisord.pid
+
+[program:api]
+command=python -m uvicorn api.app:app --host 0.0.0.0 --port 8000
+directory=/app
+environment=PYTHONPATH="/app"
+autostart=true
+autorestart=true
+stdout_logfile=/tmp/api.log
+stderr_logfile=/tmp/api.log
+
+[program:frontend]
+command=python -m streamlit run app.py --server.port 7860 --server.address 0.0.0.0 --server.headless true
+directory=/app/frontend
+environment=PYTHONPATH="/app/frontend:/app"
+autostart=true
+autorestart=true
+stdout_logfile=/tmp/frontend.log
+stderr_logfile=/tmp/frontend.log