Tweak alert dialogs and app startup migration

apps/mobile-app/app/(tabs)/credentials/index.tsx

@@ -179,7 +179,11 @@ export default function CredentialsScreen() : React.ReactNode {
            * Authentication errors are handled in useVaultSync
            * For other errors, show alert
            */
-          Alert.alert(t('common.error'), error);
+          Alert.alert(
+            t('common.error'),
+            error,
+            [{ text: t('common.ok'), style: 'default' }]
+          );
         },
         /**
          * On upgrade required.

apps/mobile-app/app/initialize.tsx

@@ -289,7 +289,11 @@ export default function Initialize() : React.ReactNode {
              * Authentication errors are already handled in useVaultSync
              * Show modal with error message for other errors
              */
-            Alert.alert(t('common.error'), error);
+            Alert.alert(
+              t('common.error'),
+              error,
+              [{ text: t('common.ok'), style: 'default' }]
+            );
             router.replace('/unlock');
             return;
           },

apps/mobile-app/app/login.tsx

@@ -191,7 +191,11 @@ export default function LoginScreen() : React.ReactNode {
         checkSuccess = false;
 
         // Show modal with error message
-        Alert.alert(t('common.error'), message);
+        Alert.alert(
+          t('common.error'),
+          message,
+          [{ text: t('common.ok'), style: 'default' }]
+        );
         // Error will trigger logout through the sync process
         setIsLoading(false);
       },

apps/mobile-app/app/unlock.tsx

@@ -71,7 +71,11 @@ export default function UnlockScreen() : React.ReactNode {
    */
   const handleUnlock = async () : Promise<void> => {
     if (!password) {
-      Alert.alert(t('common.error'), t('auth.errors.enterPassword'));
+      Alert.alert(
+        t('common.error'),
+        t('auth.errors.enterPassword'),
+        [{ text: t('common.ok'), style: 'default' }]
+      );
       return;
     }
 
@@ -113,7 +117,11 @@ export default function UnlockScreen() : React.ReactNode {
          */
         router.replace('/initialize');
       } else {
-        Alert.alert(t('common.error'), t('auth.errors.incorrectPassword'));
+        Alert.alert(
+          t('common.error'),
+          t('auth.errors.incorrectPassword'),
+          [{ text: t('common.ok'), style: 'default' }]
+        );
       }
     } catch (error) {
       if (error instanceof VaultVersionIncompatibleError) {
@@ -122,7 +130,11 @@ export default function UnlockScreen() : React.ReactNode {
       }
 
       console.error('Unlock error:', error);
-      Alert.alert(t('common.error'), t('auth.errors.incorrectPassword'));
+      Alert.alert(
+        t('common.error'),
+        t('auth.errors.incorrectPassword'),
+        [{ text: t('common.ok'), style: 'default' }]
+      );
     } finally {
       setIsLoading(false);
     }

apps/mobile-app/app/upgrade.tsx

@@ -68,7 +68,11 @@ export default function UpgradeScreen() : React.ReactNode {
    */
   const handleUpgrade = async (): Promise<void> => {
     if (!sqliteClient || !currentVersion || !latestVersion) {
-      Alert.alert(t('common.error'), t('upgrade.alerts.unableToGetVersionInfo'));
+      Alert.alert(
+        t('common.error'),
+        t('upgrade.alerts.unableToGetVersionInfo'),
+        [{ text: t('common.ok'), style: 'default' }]
+      );
       return;
     }
 
@@ -101,7 +105,11 @@ export default function UpgradeScreen() : React.ReactNode {
    */
   const performUpgrade = async (): Promise<void> => {
     if (!sqliteClient || !currentVersion || !latestVersion) {
-      Alert.alert(t('common.error'), t('upgrade.alerts.unableToGetVersionInfo'));
+      Alert.alert(
+        t('common.error'),
+        t('upgrade.alerts.unableToGetVersionInfo'),
+        [{ text: t('common.ok'), style: 'default' }]
+      );
       return;
     }
 
@@ -162,13 +170,21 @@ export default function UpgradeScreen() : React.ReactNode {
          */
         onError: (error: Error) => {
           console.error('Upgrade failed:', error);
-          Alert.alert(t('upgrade.alerts.upgradeFailed'), error.message);
+          Alert.alert(
+            t('upgrade.alerts.upgradeFailed'),
+            error.message,
+            [{ text: t('common.ok'), style: 'default' }]
+          );
         }
       });
 
     } catch (error) {
       console.error('Upgrade failed:', error);
-      Alert.alert(t('upgrade.alerts.upgradeFailed'), error instanceof Error ? error.message : t('common.errors.unknownError'));
+      Alert.alert(
+        t('upgrade.alerts.upgradeFailed'),
+        error instanceof Error ? error.message : t('common.errors.unknownError'),
+        [{ text: t('common.ok'), style: 'default' }]
+      );
     } finally {
       setIsLoading(false);
       setUpgradeStatus(t('upgrade.status.preparingUpgrade'));

apps/mobile-app/context/AuthContext.tsx

@@ -139,7 +139,8 @@ export const AuthProvider: React.FC<{ children: React.ReactNode }> = ({ children
    */
   const initializeAuth = useCallback(async (): Promise<{ isLoggedIn: boolean; enabledAuthMethods: AuthMethod[] }> => {
     // Sync legacy config to native layer (can be removed in future version 0.25.0+)
-    syncLegacyConfigToNative();
+    // IMPORTANT: We must await this to ensure migration completes before checking auth status
+    await syncLegacyConfigToNative();
 
     const accessToken = await NativeVaultManager.getAccessToken();
     const username = await NativeVaultManager.getUsername();
@@ -219,7 +220,11 @@ export const AuthProvider: React.FC<{ children: React.ReactNode }> = ({ children
 
     if (errorMessage) {
       // Show alert
-      Alert.alert(i18n.t('common.error'), errorMessage);
+      Alert.alert(
+        i18n.t('common.error'),
+        errorMessage,
+        [{ text: i18n.t('common.ok'), style: 'default' }]
+      );
     }
 
     setUsername(null);