feat: calendrier économique TE+Investing, OIS SNB, yields 10Y, taux directeurs corrects

Calendrier économique
- Nouvelles sources : TE HTML scraping (483 events/2 sem.) + Investing.com en co-primaires
- Dédupe déterministe par clé currency+category+date (±1j pour policy_rate)
- Filtre catégorie "other", filtre discours CB (fix doublon TE vs Investing)
- CHF/Switzerland via page séparée TE (hors G20)
- Fenêtre 14 jours avec ?startDate=&endDate= passés à TE
- ForexFactory+FRED en secours uniquement si les deux scrapers tombent à vide

Probabilités OIS
- rateprobability.com (7 CBs : FED/ECB/BOJ/BOE/BOC/RBA/RBNZ)
- investinglive.com (Dellamotta) : scan URL-date 14 jours → couvre SNB/CHF manquant
- SNB : 3% probabilité hausse au 19 juin 2026 (source : IL article 2026-05-29)
- rate_expectations.json MAJ : RBNZ 79% hike (corrigé depuis 70% no-change stale)
- Dédup ±1 jour pour policy_rate (fix doublon SNB TE-18/06 vs IL-19/06)

Taux directeurs
- USD : scrapeTeRate() = 3.75% (fin midpoint FRED 3.625%)
- AUD prev : 4.10% (corrigé depuis 4.60%)
- NZD/CHF/JPY/CAD : cohérents avec TE officiel

Yields 10Y souverains
- Nouvelle lib lib/tebonds.ts : scrape TE bonds, données du jour, cache 1h
- Remplace FRED IRLTLT01XXM156N mensuel (JPY/CHF/AUD/NZD avaient 1 mois de retard)
- 8 devises + spread vs USD calculé automatiquement
- /api/yields et /api/drivers utilisent la même lib

Drivers globaux
- BTC : ticker/price Binance (plus précis que 24hr lastPrice)
- HY Spread cache : 86400s → 3600s (données FRED du jour)
- DriversBar : suppression affichage direct US 10Y, tooltip Crb 2-10 affiche US10Y+US2Y

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

data/rate_expectations.json

@@ -1,66 +1,65 @@
 [
   {
-    "url": "manual-update",
-    "title": "Rate expectations — 2026-05-29",
+    "url": "https://investinglive.com/news/how-have-interest-rate-expectations-changed-after-this-weeks-event-20260529/",
+    "title": "How have interest rate expectations changed after this week's event?",
     "date": "2026-05-29",
-    "scraped_at": "2026-05-29T08:00:00.000Z",
-    "rate_cuts": [
+    "scraped_at": "2026-05-29T18:22:00.000Z",
+    "rate_cuts": [],
+    "rate_hikes": [
       {
-        "cb": "Fed (USD)",
-        "bps": 68,
+        "cb": "RBNZ (NZD)",
+        "bps": 75,
         "prob_pct": 79,
-        "prob_desc": "no change at the upcoming meeting",
-        "direction": "cut"
+        "prob_desc": "rate hike at the next meeting",
+        "direction": "hike"
       },
       {
         "cb": "ECB (EUR)",
-        "bps": 49,
-        "prob_pct": 60,
-        "prob_desc": "rate cut at the upcoming meeting",
-        "direction": "cut"
+        "bps": 52,
+        "prob_pct": 89,
+        "prob_desc": "rate hike at the next meeting",
+        "direction": "hike"
+      },
+      {
+        "cb": "BoJ (JPY)",
+        "bps": 42,
+        "prob_pct": 71,
+        "prob_desc": "rate hike at the next meeting",
+        "direction": "hike"
       },
       {
         "cb": "BoE (GBP)",
-        "bps": 53,
-        "prob_pct": 96,
-        "prob_desc": "no change at today's decision",
-        "direction": "cut"
+        "bps": 32,
+        "prob_pct": 94,
+        "prob_desc": "no change at the next meeting",
+        "direction": "hike"
       },
       {
         "cb": "BoC (CAD)",
-        "bps": 48,
-        "prob_pct": 66,
-        "prob_desc": "no change at the upcoming meeting",
-        "direction": "cut"
+        "bps": 28,
+        "prob_pct": 99,
+        "prob_desc": "no change at the next meeting",
+        "direction": "hike"
       },
       {
         "cb": "RBA (AUD)",
-        "bps": 65,
-        "prob_pct": 92,
-        "prob_desc": "no change at the upcoming meeting",
-        "direction": "cut"
+        "bps": 18,
+        "prob_pct": 93,
+        "prob_desc": "no change at the next meeting",
+        "direction": "hike"
       },
       {
-        "cb": "RBNZ (NZD)",
-        "bps": 59,
-        "prob_pct": 64,
-        "prob_desc": "rate cut at the upcoming meeting",
-        "direction": "cut"
+        "cb": "Fed (USD)",
+        "bps": 13,
+        "prob_pct": 99,
+        "prob_desc": "no change at the next meeting",
+        "direction": "hike"
       },
       {
         "cb": "SNB (CHF)",
-        "bps": 4,
-        "prob_pct": 85,
-        "prob_desc": "no change at the upcoming meeting",
-        "direction": "cut"
-      }
-    ],
-    "rate_hikes": [
-      {
-        "cb": "BoJ (JPY)",
-        "bps": 32,
-        "prob_pct": 80,
-        "prob_desc": "no change at the upcoming meeting",
+        "bps": 11,
+        "prob_pct": 97,
+        "prob_desc": "no change at the next meeting",
         "direction": "hike"
       }
     ]