Add tests

Dockerfile

@@ -40,6 +40,9 @@ COPY . .
 # Copy the built TailwindCSS assets from the first stage
 COPY --from=tailwind-builder /app/app/static/css/tailwind.css ./app/static/css/tailwind.css
 
+# Run tests during the build process
+RUN pytest --maxfail=5 --disable-warnings -v || (echo "Tests failed. Exiting." && exit 1)
+
 # Expose the port Flask will run on
 EXPOSE 5000