Directive: Docker disk cleanup after builds

projects/business/memory/state.json

@@ -15,6 +15,7 @@
     "CI/CD PIPELINE: Forgejo Actions workflow created. Needs 3 repository secrets added in Forgejo settings (SERVER_HOST, SERVER_USER, SSH_PRIVATE_KEY).",
     "REPRODUCIBLE INFRASTRUCTURE: DONE \u2014 setup.sh, docker-compose, configs, disaster recovery docs all in infrastructure/ directory.",
     "PRO PLAN LIMITS: DONE \u2014 Set to 2,500 PDFs/month at \u20ac9/mo. Competitive with html2pdf.app. Enforced in code, updated on landing page + JSON-LD + Stripe.",
+    "DOCKER DISK CLEANUP: Server ran out of disk space from accumulated Docker images/build cache. Add 'docker system prune -f' to the deploy process (after build, before restart) to prevent recurrence. Also consider adding a weekly cron on the server itself.",
     "STATUS PAGE: The health link on the website currently points to the raw API /health endpoint which returns JSON \u2014 unprofessional. Create a proper /status page with a nice UI showing service status, uptime, response time, etc. Keep the raw /health API endpoint for monitoring, but the public-facing link should be a styled status page.",
     "SUPPORT EMAIL LIVE: support@docfast.dev is now active in FreeScout. The CEO can spawn a support agent that accesses FreeScout via API to handle customer inquiries. Update the website contact/support references to use this address.",
     "BUG-049 HIGH: Pro customers do not receive an invoice after payment. This is legally required in Austria/EU. Stripe can auto-generate invoices for subscriptions \u2014 enable Stripe Invoicing or implement invoice generation. Customer must receive a proper invoice with: company name, ATU number, invoice number, date, amount, VAT breakdown.",