Replace verbose ASCII architecture in README with clean linear flow.
Remove tech stack badge grid from landing page.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Banner on landing page, docs page, and GitHub README warning that the
software is in active development and not yet ready for production use.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>