feat(tv): add smart back button handler to prevent unwanted app exit

app/(auth)/(tabs)/_layout.tsx

@@ -12,6 +12,7 @@ import { useTranslation } from "react-i18next";
 import { Platform, View } from "react-native";
 import { SystemBars } from "react-native-edge-to-edge";
 import { Colors } from "@/constants/Colors";
+import { useTVBackHandler } from "@/hooks/useTVBackHandler";
 import { useSettings } from "@/utils/atoms/settings";
 import { eventBus } from "@/utils/eventBus";
 
@@ -36,6 +37,9 @@ export default function TabLayout() {
   const { settings } = useSettings();
   const { t } = useTranslation();
 
+  // Handle TV back button - prevent app exit when at root
+  useTVBackHandler();
+
   return (
     <View style={{ flex: 1 }}>
       <SystemBars hidden={false} style='light' />

app/_layout.tsx

@@ -10,6 +10,7 @@ import * as BackgroundTask from "expo-background-task";
 import * as Device from "expo-device";
 import { Platform } from "react-native";
 import { GlobalModal } from "@/components/GlobalModal";
+import { enableTVMenuKeyInterception } from "@/hooks/useTVBackHandler";
 
 import i18n from "@/i18n";
 import { DownloadProvider } from "@/providers/DownloadProvider";
@@ -233,6 +234,11 @@ function Layout() {
   const _segments = useSegments();
   const router = useRouter();
 
+  // Enable TV menu key interception so React Native handles it instead of tvOS
+  useEffect(() => {
+    enableTVMenuKeyInterception();
+  }, []);
+
   useEffect(() => {
     i18n.changeLanguage(
       settings?.preferedLanguage ?? getLocales()[0].languageCode ?? "en",