Pass selected sport from quick start to trip creation

- Add initialSport parameter to TripCreationView
- Set selected sport when quick start button is tapped
- Auto-select that sport in trip planning view on appear
- Clear selection when sheet is dismissed

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

SportsTime/Features/Trip/Views/TripCreationView.swift

@@ -9,7 +9,13 @@ struct TripCreationView: View {
     @Environment(\.dismiss) private var dismiss
     @Environment(\.colorScheme) private var colorScheme
 
+    let initialSport: Sport?
+
     @State private var viewModel = TripCreationViewModel()
+
+    init(initialSport: Sport? = nil) {
+        self.initialSport = initialSport
+    }
     @State private var showGamePicker = false
     @State private var showCityInput = false
     @State private var cityInputType: CityInputType = .mustStop
@@ -161,6 +167,11 @@ struct TripCreationView: View {
             .task {
                 await viewModel.loadScheduleData()
             }
+            .onAppear {
+                if let sport = initialSport {
+                    viewModel.selectedSports = [sport]
+                }
+            }
         }
     }