fix: restore Hong Kong CoWIN reference curve

src/data_collection/country_networks.py

@@ -1214,20 +1214,28 @@ def build_country_network_snapshot(city: str, raw: Dict[str, Any]) -> Dict[str,
     }
     airport_primary_today_obs = ((raw.get("metar") or {}).get("today_obs") or [])
     if airport_primary.get("source_code") == "cowin_obs":
-        try:
-            from src.database.runtime_state import OfficialIntradayObservationRepository
-            repo = OfficialIntradayObservationRepository()
-            local_now = datetime.now(timezone.utc) + timedelta(seconds=city_offset or 0)
-            local_date_str = local_now.strftime("%Y-%m-%d")
-            points = repo.load_points(
-                source_code="cowin_obs",
-                station_code=airport_primary.get("station_code") or "6087",
-                target_date=local_date_str,
-            )
-            if points:
-                airport_primary_today_obs = [{"time": p["time"], "temp": p["temp"]} for p in points]
-        except Exception:
-            pass
+        live_points = raw.get("cowin_today_obs") or []
+        if live_points:
+            airport_primary_today_obs = [
+                {"time": p["time"], "temp": p["temp"]}
+                for p in live_points
+                if isinstance(p, dict) and p.get("time") and p.get("temp") is not None
+            ]
+        if not airport_primary_today_obs:
+            try:
+                from src.database.runtime_state import OfficialIntradayObservationRepository
+                repo = OfficialIntradayObservationRepository()
+                local_now = datetime.now(timezone.utc) + timedelta(seconds=city_offset or 0)
+                local_date_str = local_now.strftime("%Y-%m-%d")
+                points = repo.load_points(
+                    source_code="cowin_obs",
+                    station_code=airport_primary.get("station_code") or "6087",
+                    target_date=local_date_str,
+                )
+                if points:
+                    airport_primary_today_obs = [{"time": p["time"], "temp": p["temp"]} for p in points]
+            except Exception:
+                pass
 
     return {
         "provider_code": provider.provider_code,