Polish: responsive, SEO, tests, production config, docs #13
Description
Goal
Ship production-ready demo quality.
Scope
- Responsive design pass
- Basic SEO/meta setup
- Integration coverage for core flows
- Production configuration cleanup (including container/runtime notes for Node renderer)
- Final README documentation for setup and architecture
Acceptance Criteria
- Core flows covered by integration tests
- README documents architecture decisions and local/prod run modes
- Production run path is documented and validated