refactor: Relocate ride services from services.py to services_core.py and refine admin display fields.

backend/apps/rides/admin.py

@@ -242,8 +242,8 @@ class RideAdmin(
         "manufacturer",
         "designer",
         "ride_model",
-        "banner_image",
-        "card_image",
+        # "banner_image",
+        # "card_image",
     ]
     inlines = [RideLocationInline, RollerCoasterStatsInline]
     date_hierarchy = "opening_date"

backend/apps/rides/services/__init__.py

@@ -1,4 +1,7 @@
 from .location_service import RideLocationService
 from .media_service import RideMediaService
+# Import from the services_core module (was services.py, renamed to avoid package collision)
+from ..services_core import RideService
+
+__all__ = ["RideLocationService", "RideMediaService", "RideService"]
 
-__all__ = ["RideLocationService", "RideMediaService"]