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/Core/Services/DataProvider.swift

@@ -39,11 +39,9 @@ final class AppDataProvider: ObservableObject {
         #if targetEnvironment(simulator)
         self.provider = StubDataProvider()
         self.isUsingStubData = true
-        print("📱 Using StubDataProvider (Simulator)")
         #else
         self.provider = CloudKitDataProvider()
         self.isUsingStubData = false
-        print("☁️ Using CloudKitDataProvider (Device)")
         #endif
     }
 
@@ -66,16 +64,12 @@ final class AppDataProvider: ObservableObject {
             // Build lookup dictionaries
             self.teamsById = Dictionary(uniqueKeysWithValues: loadedTeams.map { ($0.id, $0) })
             self.stadiumsById = Dictionary(uniqueKeysWithValues: loadedStadiums.map { ($0.id, $0) })
-
-            print("✅ Loaded \(teams.count) teams, \(stadiums.count) stadiums")
         } catch let cloudKitError as CloudKitError {
             self.error = cloudKitError
             self.errorMessage = cloudKitError.errorDescription
-            print("❌ CloudKit error: \(cloudKitError.errorDescription ?? "Unknown")")
         } catch {
             self.error = error
             self.errorMessage = error.localizedDescription
-            print("❌ Failed to load data: \(error)")
         }
 
         isLoading = false