Refactor travel segments and simplify trip options

Travel segment architecture:
- Remove departureTime/arrivalTime from TravelSegment (location-based, not date-based)
- Fix travel sections appearing after destination instead of between cities
- Fix missing travel segments when revisiting same city (consecutive grouping)
- Remove unwanted rest day at end of trip

Planning engine fixes:
- All three planners now group only consecutive games at same stadium
- Visiting A → B → A creates 3 stops with proper travel between

UI simplification:
- Remove redundant sort options (mostDriving/leastDriving, mostCities/leastCities)
- Remove unused "Find Other Sports Along Route" toggle (was dead code)

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

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

SportsTime/Planning/Engine/TravelEstimator.swift

@@ -36,18 +36,12 @@ enum TravelEstimator {
             return nil
         }
 
-        // Calculate times (assume 8 AM departure)
-        let departureTime = from.departureDate.addingTimeInterval(8 * 3600)
-        let arrivalTime = departureTime.addingTimeInterval(drivingHours * 3600)
-
         return TravelSegment(
             fromLocation: from.location,
             toLocation: to.location,
             travelMode: .drive,
             distanceMeters: distanceMiles * 1609.34,
-            durationSeconds: drivingHours * 3600,
-            departureTime: departureTime,
-            arrivalTime: arrivalTime
+            durationSeconds: drivingHours * 3600
         )
     }
 
@@ -73,17 +67,12 @@ enum TravelEstimator {
             return nil
         }
 
-        let departureTime = Date()
-        let arrivalTime = departureTime.addingTimeInterval(drivingHours * 3600)
-
         return TravelSegment(
             fromLocation: from,
             toLocation: to,
             travelMode: .drive,
             distanceMeters: distanceMeters * roadRoutingFactor,
-            durationSeconds: drivingHours * 3600,
-            departureTime: departureTime,
-            arrivalTime: arrivalTime
+            durationSeconds: drivingHours * 3600
         )
     }