auto-claude: subtask-6-1 - Run flutter analyze to ensure no errors or warnings

Fixed all 39 analyzer issues:
- Removed unused import (animation_system.dart in collapsible_routes_sidebar.dart)
- Removed unused element (_buildActionButton in dark_mode_map.dart)
- Fixed unnecessary non-null assertions on AppLocalizations.of(context)
- Removed unnecessary type checks in providers.dart
- Used super parameters for key in navigation_tc_dialog.dart and status_colors.dart
- Replaced print statements with debugPrint in providers.dart and logging_interceptor.dart

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

lib/components/collapsible_routes_sidebar.dart

@@ -4,7 +4,6 @@ import '../l10n/app_localizations.dart';
 import '../models/delivery_route.dart';
 import '../theme/spacing_system.dart';
 import '../theme/size_system.dart';
-import '../theme/animation_system.dart';
 import '../theme/color_system.dart';
 import '../utils/breakpoints.dart';
 import '../providers/providers.dart';
@@ -73,7 +72,7 @@ class _CollapsibleRoutesSidebarState extends ConsumerState<CollapsibleRoutesSide
     final isMobile = context.isMobile;
     final isDarkMode = Theme.of(context).brightness == Brightness.dark;
     final isExpanded = ref.watch(collapseStateProvider);
-    final l10n = AppLocalizations.of(context)!;
+    final l10n = AppLocalizations.of(context);
 
     // On mobile, always show as collapsible
     if (isMobile) {