Launch paid MCP intelligence site, organization knowledge, and BYOF

[m1rl0k]

Summary

• Plans start at Starter $5/month or $48/year; no free-plan or beta-signup promotion.
• Position Context Engine as portable MCP intelligence for agents, IDEs, any model, cross-repo and organization-wide knowledge.
• BYOF with an independent SWE-AF reference; editor install links include VS Code Marketplace and Open VSX.
• Small open-source mentions for Helion DB (GPL-3.0, optional LSM/object store) and Context Engine Reviewer (AGPL-3.0).
• Remove unused fabricated GitHub metrics, fix real signup/login URLs and custom-domain base path.
• Compatible dependency security fixes; no forced framework major upgrade.

Verification

• npm run check: 0 errors, 0 warnings.
• Playwright: 4 passing checks including desktop and 320/390/768px no-overflow assertions.
• Production site deploy workflow now gates on these frontend checks before GitHub Pages deployment.
• No Anthropic co-branding added: Registered portal status is not logo permission.