refactor(docker): simplify CMD in Dockerfile by removing startup script

Author: stephenway

apps/cms/Dockerfile

@@ -56,11 +56,4 @@ EXPOSE 3001
 ENV NODE_ENV=production
 ENV PORT=3001
 
-# Create a startup script that runs migrations then starts the app
-RUN echo '#!/bin/sh\n\
-echo "Running database migrations..."\n\
-pnpm --filter=cms payload migrate\n\
-echo "Starting CMS application..."\n\
-pnpm --filter=cms start' > /app/start.sh && chmod +x /app/start.sh
-
-CMD ["/app/start.sh"]
+CMD ["pnpm", "--filter=cms", "start"]