Add twilio configuration user flow

apps/voice/Dockerfile

@@ -0,0 +1,27 @@
+FROM python:3.11-slim
+
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy requirements first to leverage Docker cache
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy application code
+COPY . .
+
+# Debug: List files in /app
+RUN ls -la /app
+
+# Set environment variables
+ENV PYTHONPATH=/app
+
+# Expose the port the app runs on
+EXPOSE 3009
+
+# Command to run the application directly with Python
+CMD ["python", "twilio_server.py"]