Add Dockerfile and docker-compose.yml for deployment

Dockerfile

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+# Use Python 3.11 slim image
+FROM python:3.11-slim
+
+# Set working directory
+WORKDIR /app
+
+# Install system dependencies if needed
+RUN apt-get update && apt-get install -y \
+    gcc \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy requirements and install Python dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy the source code
+COPY src/ ./src/
+COPY data/ ./data/
+
+# Create data directory if it doesn't exist
+RUN mkdir -p data
+
+# Expose port
+EXPOSE $APP_PORT
+
+# Run the application
+CMD ["python", "-m", "uvicorn", "src.main:app", "--host", "0.0.0.0", "--port", "$APP_PORT"]