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/ScenarioCPlanner.swift

@@ -175,8 +175,6 @@ final class ScenarioCPlanner: ScenarioPlanner {
             stadiums: request.stadiums
         )
 
-        print("[ScenarioC] Found \(directionalStadiums.count) directional stadiums from \(startLocation.name) to \(endLocation.name)")
-
         // ──────────────────────────────────────────────────────────────────
         // Step 5: For each date range, explore routes
         // ──────────────────────────────────────────────────────────────────
@@ -267,7 +265,6 @@ final class ScenarioCPlanner: ScenarioPlanner {
             limit: request.preferences.maxTripOptions
         )
 
-        print("[ScenarioC] Returning \(rankedOptions.count) itinerary options (leisure: \(leisureLevel.rawValue))")
         return .success(Array(rankedOptions))
     }
 
@@ -318,7 +315,6 @@ final class ScenarioCPlanner: ScenarioPlanner {
             let detourDistance = toStadium + fromStadium
 
             // Also check that stadium is making progress (closer to end than start is)
-            let distanceFromStart = distanceBetween(start, stadiumCoord)
             let distanceToEnd = distanceBetween(stadiumCoord, end)
 
             // Stadium should be within the "cone" from start to end
@@ -408,7 +404,6 @@ final class ScenarioCPlanner: ScenarioPlanner {
             }
         }
 
-        print("[ScenarioC] Generated \(dateRanges.count) date ranges for \(daySpan)-day trip")
         return dateRanges
     }
 
@@ -561,7 +556,6 @@ final class ScenarioCPlanner: ScenarioPlanner {
                 // Allow increases up to tolerance percentage
                 let allowedIncrease = prev * forwardProgressTolerance
                 if currentDistance > prev + allowedIncrease {
-                    print("[ScenarioC] Backtracking: \(stop.city) increases distance to end (\(Int(currentDistance))mi vs \(Int(prev))mi)")
                     return false
                 }
             }