added push notifications

frontend/screens/AllFeed.tsx

@@ -1,4 +1,4 @@
-import React, { useState } from "react";
+import React, {useCallback, useState} from "react";
 import {
     View, Text, ScrollView, TouchableOpacity,
     ActivityIndicator, useColorScheme,
@@ -7,6 +7,7 @@ import { SafeAreaView } from "react-native-safe-area-context";
 import { Ionicons } from "@expo/vector-icons";
 import SearchBar from "../components/SearchBar";
 import CollapsibleCategory from "../components/CollapsibleCategory";
+import {useFocusEffect} from "expo-router";
 
 
 const GROUPS = [
@@ -40,6 +41,12 @@ export default function AllFeed() {
         setTimeout(() => setRefreshing(false), 800);
     };
 
+    useFocusEffect(
+        useCallback(() => {
+            handleRefresh();
+        }, [])
+    );
+
     return (
         <SafeAreaView className={`flex-1 ${dark ? "bg-obsidian-200" : "bg-parchment-50"}`}>
             {/* Header */}

frontend/screens/Profile.tsx

@@ -23,6 +23,8 @@ type SettingRowProps = {
     accent?: string;
 };
 
+
+
 function SettingRow({ icon, label, value, toggle, toggleValue, onToggle, onPress, accent }: SettingRowProps) {
     const dark = useColorScheme() === "dark";
     const iconColor = accent ?? (dark ? "#706D67" : "#8A8278");
@@ -149,11 +151,25 @@ function GuestProfile({ onSignIn }: { onSignIn: () => void }) {
 function AuthenticatedProfile({ onSignOut }: { onSignOut: () => void }) {
     const [showSubs, setShowSubs] = useState(false);
     const dark = useColorScheme() === "dark";
-    const { user } = useAuth();
-    const [notifications, setNotifications] = React.useState(true);
+    const { user, updateNotificationType } = useAuth();
+    const [notifications, setNotifications] = useState(
+        user?.notificationType === 'PUSH_NOTIFICATION'
+    );
     const [digest, setDigest] = React.useState(false);
     const [showEdit, setShowEdit] = useState(false);
     const [showHelp, setShowHelp] = useState(false);
+
+    const handleNotificationToggle = async (value: boolean) => {
+        setNotifications(value);
+        try {
+            await updateNotificationType(
+                value ? 'PUSH_NOTIFICATION' : 'NO_NOTIFICATION'
+            );
+        } catch {
+            setNotifications(!value); // revert on failure
+        }
+    };
+
     return (
         <>
             <ScrollView contentContainerStyle={{ paddingBottom: 48 }} showsVerticalScrollIndicator={false}>
@@ -197,13 +213,19 @@ function AuthenticatedProfile({ onSignOut }: { onSignOut: () => void }) {
                 >
                     <SectionLabel title="Notifications" />
                     <SettingRow
-                        icon="notifications-outline" label="Push notifications (TODO)"
-                        toggle toggleValue={notifications} onToggle={setNotifications}
+                        icon="notifications-outline"
+                        label="Push notifications"
+                        toggle
+                        toggleValue={notifications}
+                        onToggle={handleNotificationToggle}
                         accent={dark ? "#E07B45" : "#C4622D"}
                     />
                     <SettingRow
-                        icon="mail-outline" label="Daily digest email (TODO)"
-                        toggle toggleValue={digest} onToggle={setDigest}
+                        icon="mail-outline"
+                        label="Weekly Digest email (TODO)"
+                        toggle
+                        toggleValue={digest}
+                        onToggle={setDigest}
                         accent={dark ? "#5E9EF4" : "#3B7DD8"}
                     />
 
@@ -231,32 +253,21 @@ function AuthenticatedProfile({ onSignOut }: { onSignOut: () => void }) {
                         <Text className="text-sm font-sans font-semibold text-red-500">Sign out</Text>
                     </View>
                 </TouchableOpacity>
-
             </ScrollView>
+
             <Modal visible={showEdit} animationType="slide" presentationStyle="pageSheet" onRequestClose={() => setShowEdit(false)}>
                 <EditProfile onClose={() => setShowEdit(false)} />
             </Modal>
-
             <Modal visible={showHelp} animationType="slide" presentationStyle="pageSheet" onRequestClose={() => setShowHelp(false)}>
                 <HelpSupport onClose={() => setShowHelp(false)} />
             </Modal>
-            <Modal
-                visible={showSubs}
-                animationType="slide"
-                presentationStyle="pageSheet"
-                onRequestClose={() => setShowSubs(false)}
-            >
+            <Modal visible={showSubs} animationType="slide" presentationStyle="pageSheet" onRequestClose={() => setShowSubs(false)}>
                 <ManageSubscriptions onClose={() => setShowSubs(false)} />
             </Modal>
         </>
-
-
     );
-
-
 }
 
-
 export default function Profile() {
     const dark = useColorScheme() === "dark";
     const { user, logout } = useAuth();

frontend/screens/SubscribedFeed.tsx

@@ -9,6 +9,7 @@ import SearchBar from "../components/SearchBar";
 import ExpandableItem from "../components/ExpandableItem";
 import { useAuth } from "../context/AuthContext";
 import { Entry, entriesApi } from "../services/api";
+import {useFocusEffect} from "expo-router";
 
 type SortMode = "time" | "subject";
 
@@ -124,9 +125,14 @@ export default function SubscribedFeed() {
         } finally {
             setLoading(false);
         }
-    }, [user?.subscribedSubjectIds]);
+    }, [user?.subscribedSubjectIds?.join(',')]);
 
-    useEffect(() => { fetchFeed(); }, [fetchFeed]);
+    // Always re-fetch when tab gains focus
+    useFocusEffect(
+        useCallback(() => {
+            fetchFeed();
+        }, [fetchFeed])
+    );
 
     // Filter then group
     const filtered = useMemo(() => {
@@ -249,7 +255,7 @@ export default function SubscribedFeed() {
                         <View className="items-center mt-16 px-8">
                             <Text className="text-4xl mb-3">🔍</Text>
                             <Text className={`text-base font-sans font-semibold text-center ${dark ? "text-ink-dark" : "text-ink-light"}`}>
-                                No results for "{query}"
+                                No results for &#34;{query}&#34;
                             </Text>
                         </View>
                     ) : (