feat: curve regime

backend/routers/instruments_watchlist.py

@@ -66,6 +66,16 @@ def watchlist_quotes():
     return {"items": items}
 
 
+@router.get("/curve-regimes")
+def watchlist_curve_regimes():
+    """Cached Curve Regime classification (services.curve_regime) per Watchlist instrument —
+    refreshed on the same cadence as the wavelet cache (services.wavelet_scheduler), not a
+    live call. Every Watchlist ticker is represented, with a null-regime placeholder for any
+    never successfully classified yet."""
+    from services.database import get_all_curve_regime_cache
+    return {"items": get_all_curve_regime_cache()}
+
+
 _HISTORY_PERIODS = {
     "1w":  {"yf": "5d",  "days": 7},
     "1m":  {"yf": "1mo", "days": 30},