Added Docker Support

Dockerfile

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+FROM python:3.9-slim
+
+# Create working folder and install dependencies
+WORKDIR /app
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy the application contents
+COPY service/ ./service/
+
+# Switch to a non-root user
+RUN useradd --uid 1000 theia && chown -R theia /app
+USER theia
+
+# Run the service
+EXPOSE 8080
+CMD ["gunicorn", "--bind=0.0.0.0:8080", "--log-level=info", "service:app"]