refactor: repurpose wiki into design docs, stop mirroring README Replace the README-clone Home.md with a lean landing page and add four design-doc pages: Tool Selection Guide (decision matrix + auth map, includes search_linkedin), Recommended Workflows (tool chains), Known Quirks (edge cases, upstream gotchas, depth tiers, auth traps), and Plugin Setup. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>