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/ItineraryBuilder.swift

@@ -111,21 +111,30 @@ enum ItineraryBuilder {
 
     // MARK: - Common Validators
 
-    /// Validator that ensures arrival time is before game start (with buffer).
+    /// Validator that ensures travel duration allows arrival before game start.
     /// Used by Scenario B where selected games have fixed start times.
     ///
+    /// This checks if the travel duration is short enough that the user could
+    /// theoretically leave after the previous game and arrive before the next.
+    ///
     /// - Parameter bufferSeconds: Time buffer before game start (default 1 hour)
     /// - Returns: Validator closure
     ///
     static func arrivalBeforeGameStart(bufferSeconds: TimeInterval = 3600) -> SegmentValidator {
-        return { segment, _, toStop in
+        return { segment, fromStop, toStop in
             guard let gameStart = toStop.firstGameStart else {
                 return true  // No game = no constraint
             }
 
+            // Check if there's enough time between departure point and game start
+            // Departure assumed after previous day's activities (use departure date as baseline)
+            let earliestDeparture = fromStop.departureDate
+            let travelDuration = segment.durationSeconds
+            let earliestArrival = earliestDeparture.addingTimeInterval(travelDuration)
             let deadline = gameStart.addingTimeInterval(-bufferSeconds)
-            if segment.arrivalTime > deadline {
-                print("[ItineraryBuilder] Cannot arrive in time: arrival \(segment.arrivalTime) > deadline \(deadline)")
+
+            if earliestArrival > deadline {
+                print("[ItineraryBuilder] Cannot arrive in time: earliest arrival \(earliestArrival) > deadline \(deadline)")
                 return false
             }
             return true