Hero + 5 KPI cards из GET /api/v1/landing/stats (zk_total, deals_total,
price_coverage_pct, mapping_coverage_pct, last_data_update).
Парадокс портфеля из stats.paradox. Pricing card 30 000 руб/мес. FAQ accordion.
PilotRequestModal -> POST /api/v1/pilot/request, success state с trackingId.
Admin links убраны из public nav. lucide-react добавлен в deps.
3 pages (market, PRINZIP drilldown, developers leaderboard) on top of
existing v_developer_full_metrics + domrf_realization views. ECharts on
the frontend, FastAPI router /api/v1/analytics on the backend.
