Remove CFB/NASCAR/PGA and streamline to 8 supported sports

- Remove College Football, NASCAR, and PGA from scraper and app
- Clean all data files (stadiums, games, pipeline reports)
- Update Sport.swift enum and all UI components
- Add sportstime.py CLI tool for pipeline management
- Add DATA_SCRAPING.md documentation
- Add WNBA/MLS/NWSL implementation documentation
- Scraper now supports: NBA, MLB, NHL, NFL, WNBA, MLS, NWSL, CBB

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

SportsTime/Features/Settings/Views/SettingsView.swift

@@ -244,13 +244,7 @@ struct SettingsView: View {
     // MARK: - Helpers
 
     private func sportColor(for sport: Sport) -> Color {
-        switch sport {
-        case .mlb: return .red
-        case .nba: return .orange
-        case .nhl: return .blue
-        case .nfl: return .green
-        case .mls: return .purple
-        }
+        sport.themeColor
     }
 }