feat: add customer health scoring for proactive retention (#559)

Author: topboy192

src/navigation/AppNavigator.tsx

@@ -69,6 +69,7 @@ const PerformanceDashboardScreen = lazyScreen(
 const EditSubscriptionScreen = lazyScreen(() => import('../screens/EditSubscriptionScreen'));
 const ChangePlanScreen = lazyScreen(() => import('../screens/ChangePlanScreen'));
 const BillingSettingsScreen = lazyScreen(() => import('../screens/BillingSettingsScreen'));
+const CustomerHealthScreen = lazyScreen(() => import('../screens/CustomerHealthScreen'));
 const PaymentMethodsScreen = lazyScreen(() =>
   import('../../app/screens/PaymentMethodsScreen').then((m) => ({
     default: m.PaymentMethodsScreen,
@@ -338,6 +339,11 @@ const SettingsStack = () => (
       component={PerformanceDashboardScreen}
       options={{ title: 'Performance', headerShown: true }}
     />
+    <Stack.Screen
+      name="CustomerHealth"
+      component={CustomerHealthScreen}
+      options={{ title: 'Customer Health', headerShown: true }}
+    />
     <Stack.Screen
       name="BillingSettings"
       component={BillingSettingsScreen}

src/navigation/types.ts

@@ -44,6 +44,7 @@ export type RootStackParamList = {
   LoyaltyDashboard: undefined;
   CampaignManagement: undefined;
   PerformanceDashboard: undefined;
+  CustomerHealth: undefined;
   BillingSettings: undefined;
   ChangePlan: { subscriptionId: string };
   PaymentMethods: undefined;