Created App Surfaces for Theming

lib/screens/tickets/tickets_list_screen.dart

@@ -15,6 +15,7 @@ import '../../widgets/mono_text.dart';
 import '../../widgets/responsive_body.dart';
 import '../../widgets/tasq_adaptive_list.dart';
 import '../../widgets/typing_dots.dart';
+import '../../theme/app_surfaces.dart';
 
 class TicketsListScreen extends ConsumerStatefulWidget {
   const TicketsListScreen({super.key});
@@ -321,6 +322,7 @@ class _TicketsListScreenState extends ConsumerState<TicketsListScreen> {
         return StatefulBuilder(
           builder: (context, setState) {
             return AlertDialog(
+              shape: AppSurfaces.of(context).dialogShape,
               title: const Text('Create Ticket'),
               content: Consumer(
                 builder: (context, ref, child) {
@@ -582,6 +584,8 @@ class _StatusSummaryCard extends StatelessWidget {
 
     return Card(
       color: background,
+      // summary cards are compact — use compact token for consistent density
+      shape: AppSurfaces.of(context).compactShape,
       child: Padding(
         padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
         child: Column(