fix(nav): block same-batch duplicate pushes from TV remote double-fire

Leaving a screen with the keyboard up (e.g. the Jellyseerr login) left it
lingering over the previous screen. Dismiss it before navigating back.

components/common/HeaderBackButton.tsx

@@ -1,6 +1,6 @@
 import { Ionicons } from "@expo/vector-icons";
 import { BlurView, type BlurViewProps } from "expo-blur";
-import { Platform } from "react-native";
+import { Keyboard, Platform } from "react-native";
 import { Pressable, type PressableProps } from "react-native-gesture-handler";
 import useRouter from "@/hooks/useAppRouter";
 
@@ -16,10 +16,17 @@ export const HeaderBackButton: React.FC<Props> = ({
 }) => {
   const router = useRouter();
 
+  // Dismiss the keyboard before navigating — otherwise it lingers over the
+  // previous screen (e.g. leaving the Jellyseerr login while typing).
+  const handleBack = () => {
+    Keyboard.dismiss();
+    router.back();
+  };
+
   if (Platform.OS === "ios") {
     return (
       <Pressable
-        onPress={() => router.back()}
+        onPress={handleBack}
         className='flex items-center justify-center w-9 h-9'
         {...pressableProps}
       >
@@ -30,7 +37,7 @@ export const HeaderBackButton: React.FC<Props> = ({
 
   if (background === "transparent" && Platform.OS !== "android")
     return (
-      <Pressable onPress={() => router.back()} {...pressableProps}>
+      <Pressable onPress={handleBack} {...pressableProps}>
         <BlurView
           {...props}
           intensity={100}
@@ -48,7 +55,7 @@ export const HeaderBackButton: React.FC<Props> = ({
 
   return (
     <Pressable
-      onPress={() => router.back()}
+      onPress={handleBack}
       className=' rounded-full p-2'
       {...pressableProps}
     >

hooks/useAppRouter.ts

@@ -1,13 +1,19 @@
+// Imported from expo-router's bundled copy, NOT "@react-navigation/*": as of
+// SDK 56 expo-router's Metro check rejects direct @react-navigation imports.
 import { useRouter } from "expo-router";
-import { useCallback, useMemo } from "react";
+import { NavigationContext } from "expo-router/react-navigation";
+import { useCallback, useContext, useEffect, useMemo, useRef } from "react";
 import { useOfflineMode } from "@/providers/OfflineModeProvider";
 
 /**
  * Drop-in replacement for expo-router's useRouter that automatically
- * preserves offline state across navigation.
+ * preserves offline state across navigation and guards against duplicate
+ * screens from rapid taps.
  *
  * - For object-form navigation, automatically adds offline=true when in offline context
  * - For string URLs, passes through unchanged (caller handles offline param)
+ * - push() is a no-op while the source screen is not focused, so taps fired
+ *   before the pushed screen has rendered (slow devices) can't stack duplicates
  *
  * @example
  * import useRouter from "@/hooks/useAppRouter";
@@ -19,8 +25,36 @@ export function useAppRouter() {
   const router = useRouter();
   const isOffline = useOfflineMode();
 
+  // Optional: undefined when used outside a navigator (root layout, providers).
+  // When present it reflects the focus state of the screen this hook lives in.
+  const navigation = useContext(NavigationContext);
+
+  // Synchronous re-entry guard for TV: a single remote "select" on Android TV
+  // can fire onPress more than once within the same JS batch
+  // (react-native-tvos#110/#138), BEFORE react-navigation commits the pushed
+  // route — so isFocused() still reads true for the duplicate. The ref flips
+  // synchronously on the first push and resets when the screen regains focus.
+  const pushInFlightRef = useRef(false);
+
+  useEffect(() => {
+    if (!navigation) return;
+    return navigation.addListener("focus", () => {
+      pushInFlightRef.current = false;
+    });
+  }, [navigation]);
+
   const push = useCallback(
     (href: Parameters<typeof router.push>[0]) => {
+      // Rapid-push guard: a push blurs the source screen synchronously in the
+      // navigation state (only the native render is slow). Any further push from
+      // this screen — duplicate or not — is dropped until focus returns, so taps
+      // fired before the pushed screen renders can't stack screens.
+      // No navigation context => nothing to guard (deep-link pushes from root).
+      if (navigation) {
+        if (navigation.isFocused?.() === false || pushInFlightRef.current)
+          return;
+        pushInFlightRef.current = true;
+      }
       if (typeof href === "string") {
         router.push(href as any);
       } else {
@@ -36,7 +70,7 @@ export function useAppRouter() {
         } as any);
       }
     },
-    [router, isOffline],
+    [router, isOffline, navigation],
   );
 
   const replace = useCallback(