fix: cache no-store sur routes API, EUR emploi, NZD OIS (RBNZ), ReportTab charts 750px

- app/api/*/route.ts : export const dynamic = force-dynamic + Cache-Control no-store
- lib/tecpi.ts : regex emploi EUR (grew/rose/fell), fallback body HTML, unite %/percent
- lib/rateprobability.ts : RBNZ_MEETINGS 2026-2027, buildRBNZPath (mirrors buildSNBPath)
  CHF/NZD skippes du loop Investing.com (SNB/RBNZ rate monitor = 404)
  Taux RBNZ 2.25% (etait 3.25%)
- components/ReportTab.tsx : hauteur charts 400 -> 750px (SPX, VIX, DXY, Gold)
- lib/tradingeconomics.ts, lib/types.ts, lib/newsfeed.ts : correctifs associes

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

components/TvChart.tsx

@@ -87,10 +87,10 @@ export function TvAdvancedChart({
         hide_legend:          false,
         allow_symbol_change:  false,
         calendar:             false,
-        hide_volume:          true,
+        hide_volume:          false,
         isTransparent:        true,
         save_image:           true,
-        drawings_access:      { type: "all", tools: [{ name: "Regression Trend" }] },
+        drawings_access:      { type: "all" },
         container_id:         containerId,
       },
       height