feat: add dockerfile, update sqlalchemy, fix template

Dockerfile

@@ -0,0 +1,22 @@
+# Use an official Python runtime as a parent image
+FROM python:3.11-slim
+
+# Set the working directory in the container
+WORKDIR /app
+
+# Install curl for health check
+RUN apt-get update && apt-get install -y curl libmagic1t64 && rm -rf /var/lib/apt/lists/*
+
+COPY . .
+
+# Install any needed packages specified in requirements.txt
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Make port 80 available to the world outside this container
+EXPOSE 80
+
+# Add health check
+HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 CMD curl http://localhost || exit 1
+
+# Run the application using Gunicorn
+CMD ["gunicorn", "--bind", "0.0.0.0:80", "--workers", "4", "wsgi:app"]