Add ThinkHaven Method Kit positioning

[hollandkevint]

Summary

• add an Open Method section to the homepage linking to the public ThinkHaven Method Kit
• align private repo README/PROJECT/package positioning around decision architecture
• distinguish the open method from the hosted execution layer

Verification

• npm run test:run -- tests/components/landing-page.test.tsx
• npx eslint app/page.tsx
• npm run build
• Playwright screenshots: desktop and mobile homepage via built app on localhost:3001

Notes

• Full repo lint and broad tsc still fail on pre-existing unrelated issues.

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
thinkhaven	Ready	Preview, Comment	May 12, 2026 9:26pm

[supabase]

This pull request has been ignored for the connected project lbnhfsocxbwhbvnfpjdw because there are no changes detected in supabase directory. You can change this behaviour in Project Integrations Settings ↗︎.

---

Preview Branches by Supabase.
Learn more about Supabase Branching ↗︎.