Implement collapsible sidebar with badge-only view

Add collapsible sidebar functionality for both deliveries and routes pages:

- DeliveryListItem: Add isCollapsed parameter to show badge-only view when sidebar is collapsed
- RouteListItem: Add isCollapsed parameter with same badge-only behavior
- MapSidebarLayout: Add sidebarBuilder function to pass collapsed state to child widgets
- CollapsibleRoutesSidebar: Pass collapsed state to RouteListItem components
- UnifiedDeliveryListView: Add isCollapsed parameter and pass to DeliveryListItem

Collapsed sidebar:
- Width: 80px (accommodates 60px badge with 10px margins)
- Shows only status-colored order number badges
- Badges remain centered and aligned during animations
- Removed horizontal slide animation in collapsed view to prevent misalignment
- Maintains scale and fade animations for smooth entrance

Expanded sidebar:
- Width: 420px (original full layout)
- Shows badge, vertical accent bar, and delivery/route details
- Full animations including horizontal slide

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

lib/pages/deliveries_page.dart

@@ -95,7 +95,7 @@ class _DeliveriesPageState extends ConsumerState<DeliveriesPage> {
                             ? _handleDeliveryAction(context, _selectedDelivery!, action, token)
                             : null,
                       ),
-                      sidebarWidget: UnifiedDeliveryListView(
+                      sidebarBuilder: (isCollapsed) => UnifiedDeliveryListView(
                         deliveries: deliveries,
                         selectedDelivery: _selectedDelivery,
                         scrollController: _listScrollController,
@@ -108,6 +108,7 @@ class _DeliveriesPageState extends ConsumerState<DeliveriesPage> {
                           _handleDeliveryAction(context, delivery, action, token);
                           _autoScrollToFirstPending(deliveries);
                         },
+                        isCollapsed: isCollapsed,
                       ),
                     );
             },
@@ -127,7 +128,7 @@ class _DeliveriesPageState extends ConsumerState<DeliveriesPage> {
                     ? _handleDeliveryAction(context, _selectedDelivery!, action, token)
                     : null,
               ),
-              sidebarWidget: UnifiedDeliveryListView(
+              sidebarBuilder: (isCollapsed) => UnifiedDeliveryListView(
                 deliveries: deliveries,
                 selectedDelivery: _selectedDelivery,
                 scrollController: _listScrollController,
@@ -140,6 +141,7 @@ class _DeliveriesPageState extends ConsumerState<DeliveriesPage> {
                   _handleDeliveryAction(context, delivery, action, token);
                   _autoScrollToFirstPending(deliveries);
                 },
+                isCollapsed: isCollapsed,
               ),
             ),
           );
@@ -246,6 +248,7 @@ class UnifiedDeliveryListView extends StatelessWidget {
   final ScrollController scrollController;
   final ValueChanged<Delivery> onDeliverySelected;
   final Function(Delivery, String) onItemAction;
+  final bool isCollapsed;
 
   const UnifiedDeliveryListView({
     super.key,
@@ -254,6 +257,7 @@ class UnifiedDeliveryListView extends StatelessWidget {
     required this.scrollController,
     required this.onDeliverySelected,
     required this.onItemAction,
+    this.isCollapsed = false,
   });
 
   @override
@@ -282,6 +286,7 @@ class UnifiedDeliveryListView extends StatelessWidget {
             onCall: () => onItemAction(delivery, 'call'),
             onAction: (action) => onItemAction(delivery, action),
             animationIndex: index,
+            isCollapsed: isCollapsed,
           );
         },
       ),