FE-5, last FE wiring on the mappers pattern. Closes#2042.
- New hooks (lib/trade-in-api.ts): useEstimateHistory (GET /history), useGeocodeSuggest
(GET /geocode/suggest?q=&limit=, debounced, enabled>=3 chars); useQuota reused.
- types/trade-in.ts: EstimateHistoryItem (area_m2 string, median_price), GeocodeSuggestion.
- mappers.ts: mapCache(history) -> {rows: CacheRow[], kpis: CacheKpi[]} — per-row status
by 24h TTL; KPIs FE-derived from /history (всего/средняя цена/повторные %), NOT the
global /cache-stats.
- CacheView: real previous-estimates list. ParamsPanel: address autocomplete dropdown →
captures lat/lon into submit (cleared on manual edit). HeroBar: «Скачать PDF» → /estimate/
{id}/pdf, UUID-gated + safeUrl scheme check + disabled when no estimate. TopNav: «Мои
отчёты» from quota.used/history. page.tsx: invalidate history+quota on new estimate.
- Hydration-safe: PDF link gated behind a mounted flag (urlId is SSR-null/client-uuid).
- FE-1..4 untouched.
Verified: next build green (/v2 39.6 kB); tsx harness ran mapCache vs real /history (10
items: ВСЕГО 10 / СРЕДНЯЯ 8,85 млн / ПОВТОРНЫЕ 50%, statuses, null graceful).
code-reviewer APPROVE after hydration + reports-fallback fixes.
