Remove debug prints and fix build warnings

- Remove all print statements from planning engine, data providers, and PDF generation
- Fix deprecated CLGeocoder usage with MKLocalSearch for iOS 26
- Fix Swift 6 actor isolation by converting PDFGenerator/ExportService to @MainActor
- Add @retroactive to CLLocationCoordinate2D protocol conformances
- Fix unused variable warnings in GameDAGRouter and scenario planners
- Remove unreachable catch blocks in SettingsViewModel

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

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

SportsTime/Planning/Engine/ScenarioBPlanner.swift

@@ -168,7 +168,6 @@ final class ScenarioBPlanner: ScenarioPlanner {
             limit: request.preferences.maxTripOptions
         )
 
-        print("[ScenarioB] Returning \(rankedOptions.count) itinerary options (leisure: \(leisureLevel.rawValue))")
         return .success(Array(rankedOptions))
     }
 
@@ -249,13 +248,7 @@ final class ScenarioBPlanner: ScenarioPlanner {
 
         // Last window: first selected game is on first day of window
         // Window start = firstGameDate
-        // Window end = start + duration days
         let lastWindowStart = firstGameDate
-        let lastWindowEnd = Calendar.current.date(
-            byAdding: .day,
-            value: duration,
-            to: lastWindowStart
-        )!
 
         // Slide from first window to last window
         var currentStart = firstWindowStart
@@ -277,7 +270,6 @@ final class ScenarioBPlanner: ScenarioPlanner {
             )!
         }
 
-        print("[ScenarioB] Generated \(dateRanges.count) sliding windows for \(duration)-day trip")
         return dateRanges
     }