Add POI category filters, delete item button, and fix itinerary persistence

- Expand POI categories from 5 to 7 (restaurant, bar, coffee, hotel, parking, attraction, entertainment)
- Add category filter chips with per-category API calls and caching
- Add delete button with confirmation dialog to Edit Item sheet
- Fix itinerary items not persisting: use LocalItineraryItem (SwiftData) as primary store with CloudKit sync as secondary, register model in schema

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

SportsTime/Export/Services/POISearchService.swift

@@ -44,48 +44,46 @@ actor POISearchService {
 
     enum POICategory: String, CaseIterable {
         case restaurant
+        case bar
+        case coffee
+        case hotel
+        case parking
         case attraction
         case entertainment
-        case nightlife
-        case museum
 
         var displayName: String {
             switch self {
             case .restaurant: return "Restaurant"
+            case .bar: return "Bar"
+            case .coffee: return "Coffee"
+            case .hotel: return "Hotel"
+            case .parking: return "Parking"
             case .attraction: return "Attraction"
             case .entertainment: return "Entertainment"
-            case .nightlife: return "Nightlife"
-            case .museum: return "Museum"
             }
         }
 
         var iconName: String {
             switch self {
             case .restaurant: return "fork.knife"
+            case .bar: return "wineglass.fill"
+            case .coffee: return "cup.and.saucer.fill"
+            case .hotel: return "bed.double.fill"
+            case .parking: return "car.fill"
             case .attraction: return "star.fill"
             case .entertainment: return "theatermasks.fill"
-            case .nightlife: return "moon.stars.fill"
-            case .museum: return "building.columns.fill"
-            }
-        }
-
-        var mkPointOfInterestCategory: MKPointOfInterestCategory {
-            switch self {
-            case .restaurant: return .restaurant
-            case .attraction: return .nationalPark
-            case .entertainment: return .theater
-            case .nightlife: return .nightlife
-            case .museum: return .museum
             }
         }
 
         var searchQuery: String {
             switch self {
             case .restaurant: return "restaurants"
+            case .bar: return "bars"
+            case .coffee: return "coffee shops"
+            case .hotel: return "hotels"
+            case .parking: return "parking"
             case .attraction: return "tourist attractions"
             case .entertainment: return "entertainment"
-            case .nightlife: return "bars nightlife"
-            case .museum: return "museums"
             }
         }
     }