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/Planning/Engine/ScenarioBPlanner.swift

@@ -85,12 +85,25 @@ final class ScenarioBPlanner: ScenarioPlanner {
         // Step 3: For each date range, find routes with anchors
         // ──────────────────────────────────────────────────────────────────
         let anchorGameIds = Set(selectedGames.map { $0.id })
+        let selectedRegions = request.preferences.selectedRegions
         var allItineraryOptions: [ItineraryOption] = []
 
         for dateRange in dateRanges {
-            // Find all games in this date range
+            // Find all games in this date range and selected regions
             let gamesInRange = request.allGames
-                .filter { dateRange.contains($0.startTime) }
+                .filter { game in
+                    // Must be in date range
+                    guard dateRange.contains(game.startTime) else { return false }
+
+                    // Must be in selected region (if regions specified)
+                    // Note: Anchor games are always included regardless of region
+                    if !selectedRegions.isEmpty && !anchorGameIds.contains(game.id) {
+                        guard let stadium = request.stadiums[game.stadiumId] else { return false }
+                        let gameRegion = Region.classify(longitude: stadium.coordinate.longitude)
+                        return selectedRegions.contains(gameRegion)
+                    }
+                    return true
+                }
                 .sorted { $0.startTime < $1.startTime }
 
             // Skip if no games (shouldn't happen if date range is valid)
@@ -104,12 +117,30 @@ final class ScenarioBPlanner: ScenarioPlanner {
 
             // Find all sensible routes that include the anchor games
             // Uses GameDAGRouter for polynomial-time beam search
-            let validRoutes = GameDAGRouter.findAllSensibleRoutes(
+            // Run BOTH global and per-region search for diverse routes
+            var validRoutes: [[Game]] = []
+
+            // Global beam search (finds cross-region routes)
+            let globalRoutes = GameDAGRouter.findAllSensibleRoutes(
                 from: gamesInRange,
                 stadiums: request.stadiums,
                 anchorGameIds: anchorGameIds,
+                allowRepeatCities: request.preferences.allowRepeatCities,
                 stopBuilder: buildStops
             )
+            validRoutes.append(contentsOf: globalRoutes)
+
+            // Per-region beam search (ensures good regional options)
+            let regionalRoutes = findRoutesPerRegion(
+                games: gamesInRange,
+                stadiums: request.stadiums,
+                anchorGameIds: anchorGameIds,
+                allowRepeatCities: request.preferences.allowRepeatCities
+            )
+            validRoutes.append(contentsOf: regionalRoutes)
+
+            // Deduplicate
+            validRoutes = deduplicateRoutes(validRoutes)
 
             // Build itineraries for each valid route
             for routeGames in validRoutes {
@@ -164,8 +195,7 @@ final class ScenarioBPlanner: ScenarioPlanner {
         let leisureLevel = request.preferences.leisureLevel
         let rankedOptions = ItineraryOption.sortByLeisure(
             allItineraryOptions,
-            leisureLevel: leisureLevel,
-            limit: request.preferences.maxTripOptions
+            leisureLevel: leisureLevel
         )
 
         return .success(Array(rankedOptions))
@@ -354,4 +384,84 @@ final class ScenarioBPlanner: ScenarioPlanner {
         )
     }
 
+    // MARK: - Regional Route Finding
+
+    /// Finds routes by running beam search separately for each geographic region.
+    /// This ensures we get diverse options from East, Central, and West coasts.
+    /// For Scenario B, routes must still contain all anchor games.
+    private func findRoutesPerRegion(
+        games: [Game],
+        stadiums: [UUID: Stadium],
+        anchorGameIds: Set<UUID>,
+        allowRepeatCities: Bool
+    ) -> [[Game]] {
+        // First, determine which region(s) the anchor games are in
+        var anchorRegions = Set<Region>()
+        for game in games where anchorGameIds.contains(game.id) {
+            guard let stadium = stadiums[game.stadiumId] else { continue }
+            let coord = stadium.coordinate
+            let region = Region.classify(longitude: coord.longitude)
+            if region != .crossCountry {
+                anchorRegions.insert(region)
+            }
+        }
+
+        // Partition all games by region
+        var gamesByRegion: [Region: [Game]] = [:]
+        for game in games {
+            guard let stadium = stadiums[game.stadiumId] else { continue }
+            let coord = stadium.coordinate
+            let region = Region.classify(longitude: coord.longitude)
+            if region != .crossCountry {
+                gamesByRegion[region, default: []].append(game)
+            }
+        }
+
+        print("🔍 ScenarioB Regional: Anchor games in regions: \(anchorRegions.map { $0.shortName })")
+
+        // Run beam search for each region that has anchor games
+        // (Other regions without anchor games would produce routes that don't satisfy anchors)
+        var allRoutes: [[Game]] = []
+
+        for region in anchorRegions {
+            guard let regionGames = gamesByRegion[region], !regionGames.isEmpty else { continue }
+
+            // Get anchor games in this region
+            let regionAnchorIds = anchorGameIds.filter { anchorId in
+                regionGames.contains { $0.id == anchorId }
+            }
+
+            let regionRoutes = GameDAGRouter.findAllSensibleRoutes(
+                from: regionGames,
+                stadiums: stadiums,
+                anchorGameIds: regionAnchorIds,
+                allowRepeatCities: allowRepeatCities,
+                stopBuilder: buildStops
+            )
+
+            print("🔍 ScenarioB Regional: \(region.shortName) produced \(regionRoutes.count) routes")
+            allRoutes.append(contentsOf: regionRoutes)
+        }
+
+        return allRoutes
+    }
+
+    // MARK: - Route Deduplication
+
+    /// Removes duplicate routes (routes with identical game IDs).
+    private func deduplicateRoutes(_ routes: [[Game]]) -> [[Game]] {
+        var seen = Set<String>()
+        var unique: [[Game]] = []
+
+        for route in routes {
+            let key = route.map { $0.id.uuidString }.sorted().joined(separator: "-")
+            if !seen.contains(key) {
+                seen.insert(key)
+                unique.append(route)
+            }
+        }
+
+        return unique
+    }
+
 }