Button to trigger nuke reset in dev mode

COMMENT

@@ -1,11 +0,0 @@
----
-An alternative approach to addressing this issue could be adjusting the `optionsBuilder` logic to avoid returning any suggestions when the input text field is empty, rather than guarding `onFieldSubmitted`. For instance:
-
-```dart
-optionsBuilder: (TextEditingValue textEditingValue) {
-  if (textEditingValue.text.isEmpty) return <String>[];
-  return suggestions.where((s) => s.contains(textEditingValue.text));
-}
-```
-
-This ensures that the `RawAutocomplete` widget doesn't offer any options to auto-select on submission when the field is cleared, potentially simplifying the implementation and avoiding the need for additional boolean flags (`guardOnSubmitted`). This pattern can be seen in some implementations "in the wild."

lib/screens/about_screen.dart

@@ -1,6 +1,8 @@
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:url_launcher/url_launcher.dart';
 import '../services/localization_service.dart';
+import '../services/nuclear_reset_service.dart';
 import '../widgets/welcome_dialog.dart';
 import '../widgets/submission_guide_dialog.dart';
 
@@ -83,6 +85,13 @@ class AboutScreen extends StatelessWidget {
               _buildDialogButtons(context),
               const SizedBox(height: 24),
               _buildHelpLinks(context),
+              
+              // Dev-only nuclear reset button at very bottom
+              if (kDebugMode) ...[
+                const SizedBox(height: 32),
+                _buildDevNuclearResetButton(context),
+                const SizedBox(height: 16),
+              ],
             ],
           ),
         ),
@@ -203,5 +212,231 @@ class AboutScreen extends StatelessWidget {
     );
   }
 
+  /// Dev-only nuclear reset button (only visible in debug mode)
+  Widget _buildDevNuclearResetButton(BuildContext context) {
+    return Card(
+      color: Theme.of(context).colorScheme.errorContainer.withOpacity(0.1),
+      child: Padding(
+        padding: const EdgeInsets.all(16.0),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Row(
+              children: [
+                Icon(
+                  Icons.developer_mode,
+                  color: Theme.of(context).colorScheme.primary,
+                  size: 20,
+                ),
+                const SizedBox(width: 8),
+                Text(
+                  'Developer Tools',
+                  style: Theme.of(context).textTheme.titleSmall?.copyWith(
+                    color: Theme.of(context).colorScheme.primary,
+                    fontWeight: FontWeight.bold,
+                  ),
+                ),
+              ],
+            ),
+            const SizedBox(height: 12),
+            Text(
+              'These tools are only available in debug mode for development and troubleshooting.',
+              style: Theme.of(context).textTheme.bodySmall?.copyWith(
+                color: Theme.of(context).colorScheme.onSurface.withOpacity(0.7),
+              ),
+            ),
+            const SizedBox(height: 16),
+              SizedBox(
+                width: double.infinity,
+                child: OutlinedButton.icon(
+                  onPressed: () => _showNuclearResetConfirmation(context),
+                  icon: const Icon(Icons.delete_forever, color: Colors.red),
+                  label: const Text(
+                    'Nuclear Reset (Clear All Data)',
+                    style: TextStyle(color: Colors.red),
+                  ),
+                  style: OutlinedButton.styleFrom(
+                    side: const BorderSide(color: Colors.red),
+                  ),
+                ),
+              ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  /// Show confirmation dialog for nuclear reset
+  Future<void> _showNuclearResetConfirmation(BuildContext context) async {
+    final confirmed = await showDialog<bool>(
+      context: context,
+      barrierDismissible: false,
+      builder: (context) => AlertDialog(
+        title: const Row(
+          children: [
+            Icon(Icons.warning, color: Colors.red),
+            SizedBox(width: 8),
+            Text('Nuclear Reset'),
+          ],
+        ),
+        content: const Column(
+          mainAxisSize: MainAxisSize.min,
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Text(
+              'This will completely clear ALL app data:',
+              style: TextStyle(fontWeight: FontWeight.w500),
+            ),
+            SizedBox(height: 12),
+            Text('• All settings and preferences'),
+            Text('• OAuth login credentials'),
+            Text('• Custom profiles and operators'),
+            Text('• Upload queue and cached data'),
+            Text('• Downloaded offline areas'),
+            Text('• Everything else'),
+            SizedBox(height: 16),
+            Text(
+              'The app will behave exactly like a fresh install after this operation.',
+              style: TextStyle(
+                fontWeight: FontWeight.w500,
+                color: Colors.red,
+              ),
+            ),
+            SizedBox(height: 12),
+            Text(
+              'This action cannot be undone.',
+              style: TextStyle(fontWeight: FontWeight.bold),
+            ),
+          ],
+        ),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.of(context).pop(false),
+            child: const Text('Cancel'),
+          ),
+          TextButton(
+            onPressed: () => Navigator.of(context).pop(true),
+            style: TextButton.styleFrom(foregroundColor: Colors.red),
+            child: const Text('Nuclear Reset'),
+          ),
+        ],
+      ),
+    );
+
+    if (confirmed == true && context.mounted) {
+      await _performNuclearReset(context);
+    }
+  }
+
+  /// Perform the nuclear reset operation
+  Future<void> _performNuclearReset(BuildContext context) async {
+    // Show progress dialog
+    if (!context.mounted) return;
+    
+    showDialog(
+      context: context,
+      barrierDismissible: false,
+      builder: (context) => const AlertDialog(
+        content: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            CircularProgressIndicator(),
+            SizedBox(height: 16),
+            Text('Clearing all app data...'),
+          ],
+        ),
+      ),
+    );
+
+    try {
+      // Perform the nuclear reset
+      await NuclearResetService.clearEverything();
+      
+      if (!context.mounted) return;
+      
+      // Close progress dialog
+      Navigator.of(context).pop();
+      
+      // Show completion dialog
+      await showDialog(
+        context: context,
+        barrierDismissible: false,
+        builder: (context) => AlertDialog(
+          title: const Row(
+            children: [
+              Icon(Icons.check_circle, color: Colors.green),
+              SizedBox(width: 8),
+              Text('Reset Complete'),
+            ],
+          ),
+          content: const Column(
+            mainAxisSize: MainAxisSize.min,
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              Text(
+                'All app data has been cleared successfully.',
+                style: TextStyle(fontWeight: FontWeight.w500),
+              ),
+              SizedBox(height: 12),
+              Text(
+                'Please close and restart the app to continue with a fresh state.',
+                style: TextStyle(fontWeight: FontWeight.w500),
+              ),
+            ],
+          ),
+          actions: [
+            TextButton(
+              onPressed: () => Navigator.of(context).pop(),
+              child: const Text('OK'),
+            ),
+          ],
+        ),
+      );
+    } catch (e) {
+      if (!context.mounted) return;
+      
+      // Close progress dialog if it's still open
+      Navigator.of(context).pop();
+      
+      // Show error dialog
+      await showDialog(
+        context: context,
+        builder: (context) => AlertDialog(
+          title: const Row(
+            children: [
+              Icon(Icons.error, color: Colors.red),
+              SizedBox(width: 8),
+              Text('Reset Failed'),
+            ],
+          ),
+          content: Column(
+            mainAxisSize: MainAxisSize.min,
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              const Text(
+                'An error occurred during the nuclear reset:',
+                style: TextStyle(fontWeight: FontWeight.w500),
+              ),
+              const SizedBox(height: 12),
+              Text(
+                e.toString(),
+                style: const TextStyle(fontFamily: 'monospace'),
+              ),
+              const SizedBox(height: 12),
+              const Text(
+                'Some data may have been partially cleared. You may want to manually clear app data through device settings.',
+              ),
+            ],
+          ),
+          actions: [
+            TextButton(
+              onPressed: () => Navigator.of(context).pop(),
+              child: const Text('OK'),
+            ),
+          ],
+        ),
+      );
+    }
+  }
 
 }