docs: add 14 new wiki pages for v0.9.0 features
- Telemetry, Error Boundary, DevTools, CSS Customization
- SSR/Next.js, TypeScript Integration, Benchmarks
- VS Code Extension, Create Command CLI
- 5 recipe stubs (File Picker, Emoji Picker, AI Chat, Nested, Spotlight)
- Update Home navigation with all new sections
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>