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>

.claude/settings.local.json

@@ -8,7 +8,9 @@
       "Bash(python3:*)",
       "Bash(cat:*)",
       "Bash(ls:*)",
-      "Bash(xcrun simctl install:*)"
+      "Bash(xcrun simctl install:*)",
+      "Skill(frontend-design:frontend-design)",
+      "Bash(xcrun simctl io:*)"
     ]
   }
 }