disable push enabled toggle if no permission

Author: fadi-george

examples/build.md

@@ -357,6 +357,7 @@ Push Section:
 - Section title: "Push" with info icon for tooltip
 - Push Subscription ID display (readonly)
 - Enabled toggle switch (controls optIn/optOut)
+  - Disabled when notification permission is NOT granted
 - Notification permission is automatically requested when home screen loads
 - PROMPT PUSH button:
   - Only visible when notification permission is NOT granted (fallback if user denied)
@@ -799,6 +800,7 @@ Notification permission is automatically requested when the home screen loads:
 - This ensures prompt appears after user sees the app UI
 - PROMPT PUSH button remains as fallback if user initially denied
 - Button hidden once permission is granted
+- Keep Push "Enabled" toggle disabled until permission is granted
 ```
 
 ---

examples/demo/lib/widgets/sections/push_section.dart

@@ -49,7 +49,9 @@ class PushSection extends StatelessWidget {
                   ToggleRow(
                     label: 'Enabled',
                     value: vm.pushEnabled,
-                    onChanged: vm.togglePush,
+                    onChanged: vm.hasNotificationPermission
+                        ? vm.togglePush
+                        : null,
                   ),
                 ],
               ),

examples/demo/lib/widgets/toggle_row.dart

@@ -4,14 +4,14 @@ class ToggleRow extends StatelessWidget {
   final String label;
   final String? description;
   final bool value;
-  final ValueChanged<bool> onChanged;
+  final ValueChanged<bool>? onChanged;
 
   const ToggleRow({
     super.key,
     required this.label,
     this.description,
     required this.value,
-    required this.onChanged,
+    this.onChanged,
   });
 
   @override