Extract 2002-line monolith into landing/ subfolder:
- 8 section components (FolioHeader, HeroSection, ForgettingSection, AnatomySection, DialectSection, MechanicsSection, InstallSection, CatalogFooter)
- useLandingEffects.js composable for all vanilla-JS effects
- landing.css for all styles
- Landing.vue reduced to 28-line orchestrator
Also restores upstream hero lede text ("permanent. Designed for total recall.").
Dominique Deschatre