Add region-based filtering and route length diversity

- Add RegionMapSelector UI for geographic trip filtering (East/Central/West)
- Add RouteFilters module for allowRepeatCities preference
- Improve GameDAGRouter to preserve route length diversity
  - Routes now grouped by city count before scoring
  - Ensures 2-city trips appear alongside longer trips
  - Increased beam width and max options for better coverage
- Add TripOptionsView filters (max cities slider, pace filter)
- Remove TravelStyle section from trip creation (replaced by region selector)
- Clean up debug logging from DataProvider and ScenarioAPlanner

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

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

SportsTime/Features/Settings/Views/SettingsView.swift

@@ -141,22 +141,6 @@ struct SettingsView: View {
                 )
             }
 
-            VStack(alignment: .leading, spacing: 8) {
-                HStack {
-                    Text("Trip Options to Show")
-                    Spacer()
-                    Text("\(viewModel.maxTripOptions)")
-                        .foregroundStyle(.secondary)
-                }
-                Slider(
-                    value: Binding(
-                        get: { Double(viewModel.maxTripOptions) },
-                        set: { viewModel.maxTripOptions = Int($0) }
-                    ),
-                    in: 1...20,
-                    step: 1
-                )
-            }
         } header: {
             Text("Travel Preferences")
         } footer: {