Stable+production ready

Seyfried
2026-02-27T14:50:06Z

Docs: Improve deployment quickstart & SurveyJS TOC

- Use sed -i.bak for cross-platform .env secret generation (works on Linux & macOS)
- Complete SURVEYJS.md table of contents with all sections
- Simplifies production deployment automation

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>