Add Dockerfile for containerized deployment

Dockerfile

@@ -0,0 +1,32 @@
+FROM python:3.11-slim
+
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    curl \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Poetry
+RUN pip install poetry==1.7.1
+
+# Copy dependency files
+COPY pyproject.toml poetry.lock* ./
+
+# Install dependencies (no dev dependencies in production)
+RUN poetry config virtualenvs.create false \
+    && poetry install --no-interaction --no-ansi --no-dev
+
+# Copy source code
+COPY src/ ./src/
+COPY ml/ ./ml/
+
+# Set Python path
+ENV PYTHONPATH=/app/src
+
+# Expose ports
+EXPOSE 8000 8501
+
+# Default command (API server)
+CMD ["uvicorn", "cascade.api.main:app", "--host", "0.0.0.0", "--port", "8000"]