feat: Add Web Push notifications and multiple UX improvements

- Add PWA manifest and service worker for push notifications
- Implement VAPID key generation and push subscription management
- Add push notification API endpoints (/api/push/*)
- Add push_subscriptions table to database schema
- Update notification settings UI with push support and iOS hints
- Fix translation issue showing "{ task } created" - add missing keys
- Fix mobile sidebar visibility for iOS home screen app
- Change default task filter from "all" to "open" (excludes done tasks)
- Add "Open" filter option to show only todo + inProgress tasks

client/index.html

@@ -7,8 +7,19 @@
   <meta name="description"
     content="Personal task management app with calendar scheduling, kanban boards, and time tracking" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1, user-scalable=no" />
+
+  <!-- PWA Meta Tags -->
+  <link rel="manifest" href="/manifest.json" />
+  <meta name="theme-color" content="#7c3aed" />
+  <meta name="apple-mobile-web-app-capable" content="yes" />
+  <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
+  <meta name="apple-mobile-web-app-title" content="TaskFlow" />
+
+  <!-- Icons -->
   <link rel="icon" type="image/png" href="/favicon.png?v=4" />
   <link rel="apple-touch-icon" href="/favicon.png?v=4" />
+
+  <!-- Fonts -->
   <link rel="preconnect" href="https://fonts.googleapis.com">
   <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
   <link

client/public/manifest.json

@@ -0,0 +1,26 @@
+{
+  "name": "TaskFlow",
+  "short_name": "TaskFlow",
+  "description": "Gamified task management with AI assistance",
+  "start_url": "/",
+  "display": "standalone",
+  "background_color": "#0f0f23",
+  "theme_color": "#7c3aed",
+  "orientation": "portrait-primary",
+  "icons": [
+    {
+      "src": "/favicon.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "any maskable"
+    },
+    {
+      "src": "/favicon.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "any maskable"
+    }
+  ],
+  "categories": ["productivity", "utilities"],
+  "prefer_related_applications": false
+}

client/public/sw.js

@@ -0,0 +1,140 @@
+// TaskFlow Service Worker for Push Notifications
+const CACHE_NAME = 'taskflow-v1';
+
+// Install event - cache essential assets
+self.addEventListener('install', (event) => {
+  console.log('[SW] Installing service worker...');
+  self.skipWaiting();
+});
+
+// Activate event - clean up old caches
+self.addEventListener('activate', (event) => {
+  console.log('[SW] Activating service worker...');
+  event.waitUntil(
+    caches.keys().then((cacheNames) => {
+      return Promise.all(
+        cacheNames
+          .filter((name) => name !== CACHE_NAME)
+          .map((name) => caches.delete(name))
+      );
+    })
+  );
+  self.clients.claim();
+});
+
+// Push event - handle incoming push notifications
+self.addEventListener('push', (event) => {
+  console.log('[SW] Push received:', event);
+
+  let data = {
+    title: 'TaskFlow',
+    body: 'You have a new notification',
+    icon: '/favicon.png',
+    badge: '/favicon.png',
+    tag: 'taskflow-notification',
+    data: {}
+  };
+
+  if (event.data) {
+    try {
+      const payload = event.data.json();
+      data = {
+        title: payload.title || data.title,
+        body: payload.body || data.body,
+        icon: payload.icon || data.icon,
+        badge: payload.badge || data.badge,
+        tag: payload.tag || data.tag,
+        data: payload.data || {}
+      };
+    } catch (e) {
+      // If not JSON, use text
+      data.body = event.data.text();
+    }
+  }
+
+  const options = {
+    body: data.body,
+    icon: data.icon,
+    badge: data.badge,
+    tag: data.tag,
+    data: data.data,
+    vibrate: [100, 50, 100],
+    requireInteraction: false,
+    actions: [
+      {
+        action: 'open',
+        title: 'Open TaskFlow'
+      },
+      {
+        action: 'dismiss',
+        title: 'Dismiss'
+      }
+    ]
+  };
+
+  event.waitUntil(
+    self.registration.showNotification(data.title, options)
+  );
+});
+
+// Notification click event - handle user interaction
+self.addEventListener('notificationclick', (event) => {
+  console.log('[SW] Notification clicked:', event);
+
+  event.notification.close();
+
+  if (event.action === 'dismiss') {
+    return;
+  }
+
+  // Default action or 'open' action - open the app
+  const urlToOpen = event.notification.data?.url || '/';
+
+  event.waitUntil(
+    clients.matchAll({ type: 'window', includeUncontrolled: true }).then((clientList) => {
+      // Check if app is already open
+      for (const client of clientList) {
+        if (client.url.includes(self.location.origin) && 'focus' in client) {
+          client.focus();
+          if (event.notification.data?.url) {
+            client.navigate(event.notification.data.url);
+          }
+          return;
+        }
+      }
+      // Open new window if not already open
+      if (clients.openWindow) {
+        return clients.openWindow(urlToOpen);
+      }
+    })
+  );
+});
+
+// Notification close event
+self.addEventListener('notificationclose', (event) => {
+  console.log('[SW] Notification closed:', event);
+});
+
+// Handle push subscription change
+self.addEventListener('pushsubscriptionchange', (event) => {
+  console.log('[SW] Push subscription changed:', event);
+
+  event.waitUntil(
+    self.registration.pushManager.subscribe({
+      userVisibleOnly: true,
+      applicationServerKey: event.oldSubscription?.options?.applicationServerKey
+    }).then((subscription) => {
+      // Send new subscription to server
+      return fetch('/api/push/resubscribe', {
+        method: 'POST',
+        headers: {
+          'Content-Type': 'application/json'
+        },
+        body: JSON.stringify({
+          oldEndpoint: event.oldSubscription?.endpoint,
+          newSubscription: subscription.toJSON()
+        })
+      });
+    })
+  );
+});

client/src/App.tsx

@@ -337,6 +337,14 @@ function AppContent() {
         <AppSidebar user={user} />
         <SidebarInset>
           <div className={`min-h-screen bg-background flex flex-col ${adhdEnabled ? 'adhd-mode' : ''} ${adhdEnabled && adhdSettings.reducedAnimations ? 'reduced-motion' : ''} ${adhdEnabled && adhdSettings.largerTargets ? 'larger-targets' : ''}`}>
+            {/* Mobile Header with Sidebar Toggle */}
+            <header className="sticky top-0 z-50 flex items-center gap-3 px-4 py-3 bg-background/80 backdrop-blur-xl border-b border-border/50 md:hidden">
+              <SidebarTrigger className="h-9 w-9" />
+              <div className="flex items-center gap-2">
+                <img src="/favicon.png" alt="Logo" className="w-7 h-7 rounded-lg" />
+                <span className="font-bold text-lg">{t('app.title')}</span>
+              </div>
+            </header>
             <main className="flex-1 p-4 md:p-6 max-w-screen-2xl mx-auto w-full relative">
               <Switch>
                 <Route path="/">

client/src/components/TasksWithCalendar.tsx

@@ -35,14 +35,14 @@ interface TasksWithCalendarProps {
 }
 
 type SortOption = 'dueDate' | 'priority' | 'title' | 'status';
-type FilterOption = 'all' | 'todo' | 'inProgress' | 'done' | 'overdue' | 'planned' | 'unplanned';
+type FilterOption = 'all' | 'open' | 'todo' | 'inProgress' | 'done' | 'overdue' | 'planned' | 'unplanned';
 
 export default function TasksWithCalendar({ tasks, onTaskUpdate, onTaskEdit, onTaskDelete, onStartTimer, onStopTimer }: TasksWithCalendarProps) {
   const { t } = useTranslation();
   const dateLocale = useDateLocale();
   const [searchQuery, setSearchQuery] = useState('');
   const [sortBy, setSortBy] = useState<SortOption>('dueDate');
-  const [filterBy, setFilterBy] = useState<FilterOption>('all');
+  const [filterBy, setFilterBy] = useState<FilterOption>('open');
   const [calendarStartDate, setCalendarStartDate] = useState(startOfToday());
   const [draggedTask, setDraggedTask] = useState<string | null>(null);
   const [hoveredDate, setHoveredDate] = useState<Date | null>(null);
@@ -106,6 +106,8 @@ export default function TasksWithCalendar({ tasks, onTaskUpdate, onTaskEdit, onT
           return !task.dueDate && !task.startDate;
         case 'all':
           return true;
+        case 'open':
+          return task.status !== 'done';
         default:
           return task.status === filterBy;
       }
@@ -173,6 +175,8 @@ export default function TasksWithCalendar({ tasks, onTaskUpdate, onTaskEdit, onT
         return tasks.filter(t => !t.dueDate && !t.startDate).length;
       case 'all':
         return tasks.length;
+      case 'open':
+        return tasks.filter(t => t.status !== 'done').length;
       default:
         return tasks.filter(task => task.status === filter).length;
     }
@@ -286,6 +290,7 @@ export default function TasksWithCalendar({ tasks, onTaskUpdate, onTaskEdit, onT
                 </div>
               </SelectTrigger>
               <SelectContent>
+                <SelectItem value="open">{t('taskList.filter.open')} ({getFilterCount('open')})</SelectItem>
                 <SelectItem value="all">{t('taskList.filter.all')} ({getFilterCount('all')})</SelectItem>
                 <SelectItem value="todo">{t('taskList.filter.todo')} ({getFilterCount('todo')})</SelectItem>
                 <SelectItem value="inProgress">{t('taskList.filter.inProgress')} ({getFilterCount('inProgress')})</SelectItem>
@@ -322,7 +327,7 @@ export default function TasksWithCalendar({ tasks, onTaskUpdate, onTaskEdit, onT
         {unscheduledTasks.length === 0 ? (
           <div className="text-center py-8">
             <p className="text-muted-foreground" data-testid="text-no-tasks">
-              {searchQuery || filterBy !== 'all'
+              {searchQuery || (filterBy !== 'all' && filterBy !== 'open')
                 ? t('taskList.noMatchingTasks')
                 : t('taskList.noUnscheduledTasks')
               }

client/src/hooks/use-notifications.ts

@@ -1,116 +1,286 @@
 import { useEffect, useState, useCallback, useRef } from 'react';
-import { useQuery } from '@tanstack/react-query';
+import { useQuery, useMutation } from '@tanstack/react-query';
 import { Task } from '@shared/schema';
 import { useTranslation } from 'react-i18next';
 import { formatDistanceToNow } from 'date-fns';
 import { de, enUS } from 'date-fns/locale';
 
+// Convert VAPID public key from base64 to Uint8Array (required for subscription)
+function urlBase64ToUint8Array(base64String: string): Uint8Array {
+  const padding = '='.repeat((4 - base64String.length % 4) % 4);
+  const base64 = (base64String + padding)
+    .replace(/-/g, '+')
+    .replace(/_/g, '/');
+
+  const rawData = window.atob(base64);
+  const outputArray = new Uint8Array(rawData.length);
+
+  for (let i = 0; i < rawData.length; ++i) {
+    outputArray[i] = rawData.charCodeAt(i);
+  }
+  return outputArray;
+}
+
+// Check if push notifications are supported
+function isPushSupported(): boolean {
+  return 'serviceWorker' in navigator && 'PushManager' in window;
+}
+
+// Check if running as installed PWA (standalone)
+function isStandalone(): boolean {
+  return window.matchMedia('(display-mode: standalone)').matches ||
+    (window.navigator as any).standalone === true;
+}
+
 export function useNotifications({ poll = true }: { poll?: boolean } = {}) {
-    const { t, i18n } = useTranslation();
-    const [permission, setPermission] = useState<NotificationPermission>('default');
-    const [enabled, setEnabled] = useState(false);
+  const { t, i18n } = useTranslation();
+  const [permission, setPermission] = useState<NotificationPermission>('default');
+  const [pushSupported, setPushSupported] = useState(false);
+  const [pushSubscription, setPushSubscription] = useState<PushSubscription | null>(null);
+  const [serviceWorkerReady, setServiceWorkerReady] = useState(false);
+  const [enabled, setEnabled] = useState(false);
 
-    // Track notified tasks to prevent duplicate alerts in same session
-    const notifiedTasksRef = useRef<Set<string>>(new Set());
+  // Track notified tasks to prevent duplicate alerts in same session
+  const notifiedTasksRef = useRef<Set<string>>(new Set());
 
-    useEffect(() => {
+  // Check support and register service worker on mount
+  useEffect(() => {
+    const initializePush = async () => {
+      if (!isPushSupported()) {
+        console.log('[Notifications] Push not supported');
+        setPushSupported(false);
+        return;
+      }
+
+      setPushSupported(true);
+
+      try {
+        // Register service worker
+        const registration = await navigator.serviceWorker.register('/sw.js', {
+          scope: '/'
+        });
+        console.log('[Notifications] Service worker registered:', registration.scope);
+
+        // Wait for service worker to be ready
+        await navigator.serviceWorker.ready;
+        setServiceWorkerReady(true);
+
+        // Check current subscription
+        const subscription = await registration.pushManager.getSubscription();
+        setPushSubscription(subscription);
+
+        // Update permission state
         if ('Notification' in window) {
-            setPermission(Notification.permission);
-            const isEnabled = localStorage.getItem('taskflow-notifications-enabled') === 'true';
-            setEnabled(isEnabled && Notification.permission === 'granted');
+          setPermission(Notification.permission);
+          const isEnabled = localStorage.getItem('taskflow-push-enabled') === 'true';
+          setEnabled(isEnabled && Notification.permission === 'granted' && subscription !== null);
         }
-    }, []);
+      } catch (error) {
+        console.error('[Notifications] Service worker registration failed:', error);
+      }
+    };
 
-    const requestPermission = useCallback(async () => {
-        if (!('Notification' in window)) return false;
+    initializePush();
+  }, []);
 
+  // Fetch VAPID public key
+  const { data: vapidData } = useQuery<{ publicKey: string }>({
+    queryKey: ['/api/push/vapid-public-key'],
+    enabled: serviceWorkerReady && pushSupported,
+    retry: false,
+    staleTime: Infinity, // VAPID key doesn't change
+  });
+
+  // Subscribe mutation
+  const subscribeMutation = useMutation({
+    mutationFn: async (subscription: PushSubscription) => {
+      const response = await fetch('/api/push/subscribe', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ subscription: subscription.toJSON() }),
+      });
+      if (!response.ok) throw new Error('Failed to subscribe');
+      return response.json();
+    },
+    onSuccess: () => {
+      localStorage.setItem('taskflow-push-enabled', 'true');
+      setEnabled(true);
+    },
+  });
+
+  // Unsubscribe mutation
+  const unsubscribeMutation = useMutation({
+    mutationFn: async (endpoint: string) => {
+      const response = await fetch('/api/push/unsubscribe', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ endpoint }),
+      });
+      if (!response.ok) throw new Error('Failed to unsubscribe');
+      return response.json();
+    },
+    onSuccess: () => {
+      localStorage.setItem('taskflow-push-enabled', 'false');
+      setEnabled(false);
+      setPushSubscription(null);
+    },
+  });
+
+  // Request permission and subscribe to push
+  const requestPermission = useCallback(async (): Promise<boolean> => {
+    if (!pushSupported || !serviceWorkerReady || !vapidData?.publicKey) {
+      console.log('[Notifications] Cannot request permission - prerequisites not met');
+
+      // Fallback to basic notification permission
+      if ('Notification' in window) {
         const result = await Notification.requestPermission();
         setPermission(result);
+        return result === 'granted';
+      }
+      return false;
+    }
 
-        if (result === 'granted') {
-            setEnabled(true);
-            localStorage.setItem('taskflow-notifications-enabled', 'true');
-            new Notification(t('notifications.enabledTitle'), {
-                body: t('notifications.enabledBody'),
-                // icon: '/favicon.ico' // Chrome sometimes blocks if icon 404
-            });
-            return true;
-        }
+    try {
+      // Request notification permission
+      const permissionResult = await Notification.requestPermission();
+      setPermission(permissionResult);
+
+      if (permissionResult !== 'granted') {
+        console.log('[Notifications] Permission denied');
         return false;
-    }, [t]);
+      }
 
-    const toggleEnabled = useCallback((value: boolean) => {
-        if (value && permission !== 'granted') {
-            requestPermission();
-        } else {
-            setEnabled(value);
-            localStorage.setItem('taskflow-notifications-enabled', String(value));
+      // Get service worker registration
+      const registration = await navigator.serviceWorker.ready;
+
+      // Check for existing subscription
+      let subscription = await registration.pushManager.getSubscription();
+
+      if (!subscription) {
+        // Create new subscription
+        const applicationServerKey = urlBase64ToUint8Array(vapidData.publicKey);
+        subscription = await registration.pushManager.subscribe({
+          userVisibleOnly: true,
+          applicationServerKey,
+        });
+        console.log('[Notifications] New push subscription created');
+      }
+
+      setPushSubscription(subscription);
+
+      // Send subscription to server
+      await subscribeMutation.mutateAsync(subscription);
+
+      return true;
+    } catch (error) {
+      console.error('[Notifications] Failed to subscribe:', error);
+      return false;
+    }
+  }, [pushSupported, serviceWorkerReady, vapidData?.publicKey, subscribeMutation]);
+
+  // Toggle notifications on/off
+  const toggleEnabled = useCallback(async (value: boolean) => {
+    if (value) {
+      // Enable notifications
+      if (permission !== 'granted' || !pushSubscription) {
+        await requestPermission();
+      } else {
+        setEnabled(true);
+        localStorage.setItem('taskflow-push-enabled', 'true');
+      }
+    } else {
+      // Disable notifications
+      if (pushSubscription) {
+        try {
+          await pushSubscription.unsubscribe();
+          await unsubscribeMutation.mutateAsync(pushSubscription.endpoint);
+        } catch (error) {
+          console.error('[Notifications] Failed to unsubscribe:', error);
         }
-    }, [permission, requestPermission]);
+      }
+      setEnabled(false);
+      localStorage.setItem('taskflow-push-enabled', 'false');
+    }
+  }, [permission, pushSubscription, requestPermission, unsubscribeMutation]);
 
-    // Query tasks for polling
-    const { data: tasks } = useQuery<Task[]>({
-        queryKey: ['/api/tasks'],
-        enabled: enabled && poll // Only poll if enabled AND polling is active
-    });
+  // Send test notification
+  const sendTestNotification = useCallback(async () => {
+    try {
+      const response = await fetch('/api/push/test', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+      });
+      return response.ok;
+    } catch {
+      return false;
+    }
+  }, []);
 
-    // Polling Logic
-    useEffect(() => {
-        if (!poll || !enabled || !tasks || permission !== 'granted') return;
+  // Query tasks for fallback polling (when push isn't available or app is open)
+  const { data: tasks } = useQuery<Task[]>({
+    queryKey: ['/api/tasks'],
+    enabled: enabled && poll && !pushSupported // Only poll if push isn't supported
+  });
 
-        const checkTasks = () => {
-            const now = new Date();
+  // Fallback Polling Logic (for when push isn't available)
+  useEffect(() => {
+    if (!poll || !enabled || !tasks || permission !== 'granted' || pushSupported) return;
 
-            tasks.forEach(task => {
-                if (!task.dueDate || task.status === 'done' || notifiedTasksRef.current.has(task.id)) return;
+    const checkTasks = () => {
+      const now = new Date();
 
-                const dueDate = new Date(task.dueDate);
-                const diffMs = dueDate.getTime() - now.getTime();
-                const diffMinutes = diffMs / (1000 * 60);
+      tasks.forEach(task => {
+        if (!task.dueDate || task.status === 'done' || notifiedTasksRef.current.has(task.id)) return;
 
-                // Alert: Upcoming (15 min before)
-                if (diffMinutes > 0 && diffMinutes <= 15) {
-                    sendNotification(task, 'upcoming');
-                    notifiedTasksRef.current.add(task.id);
-                }
+        const dueDate = new Date(task.dueDate);
+        const diffMs = dueDate.getTime() - now.getTime();
+        const diffMinutes = diffMs / (1000 * 60);
 
-                // Alert: Just Overdue (within last 1 min to catch it once)
-                // or purely check if overdue and not notified?
-                // Let's stick to "Just became overdue" or "Is overdue" but protect with Set
-                if (diffMinutes < 0) {
-                    sendNotification(task, 'overdue');
-                    notifiedTasksRef.current.add(task.id);
-                }
-            });
-        };
+        // Alert: Upcoming (15 min before)
+        if (diffMinutes > 0 && diffMinutes <= 15) {
+          sendNotification(task, 'upcoming');
+          notifiedTasksRef.current.add(task.id);
+        }
 
-        const sendNotification = (task: Task, type: 'upcoming' | 'overdue') => {
-            const title = type === 'upcoming'
-                ? t('notifications.upcomingTitle', { task: task.title })
-                : t('notifications.overdueTitle', { task: task.title });
-
-            const body = type === 'upcoming'
-                ? t('notifications.upcomingBody', { time: formatDistanceToNow(new Date(task.dueDate!), { locale: i18n.language === 'de' ? de : enUS }) })
-                : t('notifications.overdueBody');
-
-            new Notification(title, {
-                body,
-                // icon: '/favicon.ico',
-                tag: `task-${task.id}-${type}` // prevent duplicate native notifications
-            });
-        };
-
-        // Check immediately and then interval
-        checkTasks();
-        const interval = setInterval(checkTasks, 60000); // Check every minute
-
-        return () => clearInterval(interval);
-    }, [enabled, tasks, permission, t, i18n.language]);
-
-    return {
-        permission,
-        enabled,
-        requestPermission,
-        toggleEnabled
+        // Alert: Just Overdue
+        if (diffMinutes < 0) {
+          sendNotification(task, 'overdue');
+          notifiedTasksRef.current.add(task.id);
+        }
+      });
     };
+
+    const sendNotification = (task: Task, type: 'upcoming' | 'overdue') => {
+      const title = type === 'upcoming'
+        ? t('notifications.upcomingTitle', { task: task.title })
+        : t('notifications.overdueTitle', { task: task.title });
+
+      const body = type === 'upcoming'
+        ? t('notifications.upcomingBody', { time: formatDistanceToNow(new Date(task.dueDate!), { locale: i18n.language === 'de' ? de : enUS }) })
+        : t('notifications.overdueBody');
+
+      new Notification(title, {
+        body,
+        tag: `task-${task.id}-${type}`
+      });
+    };
+
+    checkTasks();
+    const interval = setInterval(checkTasks, 60000);
+
+    return () => clearInterval(interval);
+  }, [enabled, tasks, permission, t, i18n.language, poll, pushSupported]);
+
+  return {
+    permission,
+    enabled,
+    pushSupported,
+    pushSubscription,
+    isStandalone: isStandalone(),
+    serviceWorkerReady,
+    requestPermission,
+    toggleEnabled,
+    sendTestNotification,
+    isLoading: subscribeMutation.isPending || unsubscribeMutation.isPending,
+  };
 }

client/src/i18n/locales/de.json

@@ -6,7 +6,9 @@
   "notifications": {
     "title": "Benachrichtigungen",
     "enableBrowser": "Browser-Benachrichtigungen aktivieren",
+    "enablePush": "Push-Benachrichtigungen",
     "description": "Erhalten Sie Warnungen für bevorstehende und überfällige Aufgaben.",
+    "pushDescription": "Erhalten Sie Benachrichtigungen auch wenn die App geschlossen ist.",
     "enabledTitle": "Benachrichtigungen aktiviert",
     "enabledBody": "Sie erhalten nun Warnungen für Ihre Aufgaben.",
     "upcomingTitle": "Demnächst: {{task}}",
@@ -20,7 +22,16 @@
       "request": "Zugriff anfordern"
     },
     "recent": "Aktuelle Warnungen",
-    "empty": "Alles erledigt! Keine urgierten Warnungen."
+    "empty": "Alles erledigt! Keine urgierten Warnungen.",
+    "pushSupported": "Push unterstützt",
+    "installedApp": "Installierte App",
+    "permissionDenied": "Berechtigung vom Browser verweigert. Bitte setzen Sie die Website-Berechtigungen zurück.",
+    "iosHintTitle": "Zum Home-Bildschirm hinzufügen",
+    "iosHintDesc": "Um Push-Benachrichtigungen auf iOS zu erhalten, tippen Sie auf die Teilen-Schaltfläche und wählen Sie \"Zum Home-Bildschirm\", dann öffnen Sie die App von dort.",
+    "sendTest": "Test-Benachrichtigung senden",
+    "testSent": "Test gesendet",
+    "testSentDesc": "Überprüfen Sie Ihr Gerät auf eine Benachrichtigung.",
+    "testFailed": "Test-Benachrichtigung konnte nicht gesendet werden."
   },
   "unscheduled": {
     "title": "Ungeplante Aufgaben",
@@ -51,11 +62,14 @@
     "listHeader": "Aufgabenliste",
     "calendarTitle": "Nächste {{count}} Tage",
     "filter": {
+      "open": "Offen",
       "all": "Alle",
       "todo": "Zu erledigen",
       "inProgress": "In Bearbeitung",
       "done": "Erledigt",
-      "overdue": "Überfällig"
+      "overdue": "Überfällig",
+      "planned": "Geplant",
+      "unplanned": "Ungeplant"
     },
     "sort": {
       "dueDate": "Fälligkeitsdatum",
@@ -626,6 +640,14 @@
     "loading": "Laden...",
     "error": "Ein Fehler ist aufgetreten"
   },
+  "task": {
+    "created": "Aufgabe erstellt",
+    "createdDescription": "\"{{title}}\" wurde hinzugefügt."
+  },
+  "error": {
+    "createTask": "Fehler",
+    "createTaskDescription": "Aufgabe konnte nicht erstellt werden. Bitte versuchen Sie es erneut."
+  },
   "deleteConfirmation": {
     "title": "Aufgabe löschen",
     "description": "Möchten Sie diese Aufgabe wirklich löschen? Diese Aktion kann nicht rückgängig gemacht werden.",

client/src/i18n/locales/en.json

@@ -6,7 +6,9 @@
   "notifications": {
     "title": "Notifications",
     "enableBrowser": "Enable Browser Notifications",
+    "enablePush": "Push Notifications",
     "description": "Get alerted about upcoming and overdue tasks.",
+    "pushDescription": "Receive notifications even when the app is closed.",
     "enabledTitle": "Notifications Enabled",
     "enabledBody": "You will now receive alerts for your tasks.",
     "upcomingTitle": "Upcoming: {{task}}",
@@ -20,7 +22,16 @@
       "request": "Request Permission"
     },
     "recent": "Recent Alerts",
-    "empty": "All caught up! No urgent alerts."
+    "empty": "All caught up! No urgent alerts.",
+    "pushSupported": "Push Supported",
+    "installedApp": "Installed App",
+    "permissionDenied": "Permission denied by browser. Please reset site permissions.",
+    "iosHintTitle": "Add to Home Screen",
+    "iosHintDesc": "To receive push notifications on iOS, tap the Share button and select \"Add to Home Screen\", then open the app from there.",
+    "sendTest": "Send Test Notification",
+    "testSent": "Test Sent",
+    "testSentDesc": "Check for a notification on your device.",
+    "testFailed": "Failed to send test notification."
   },
   "unscheduled": {
     "title": "Unscheduled Tasks",
@@ -51,6 +62,7 @@
     "listHeader": "Task List",
     "calendarTitle": "Next {{count}} Days",
     "filter": {
+      "open": "Open",
       "all": "All",
       "todo": "To Do",
       "inProgress": "In Progress",
@@ -607,6 +619,14 @@
     "loading": "Loading...",
     "error": "An error occurred"
   },
+  "task": {
+    "created": "Task Created",
+    "createdDescription": "\"{{title}}\" has been added."
+  },
+  "error": {
+    "createTask": "Error",
+    "createTaskDescription": "Failed to create task. Please try again."
+  },
   "deleteConfirmation": {
     "title": "Delete Task",
     "description": "Are you sure you want to delete this task? This action cannot be undone.",

client/src/pages/settings.tsx

@@ -22,32 +22,113 @@ import { DataExportCard } from '@/components/user/DataExportCard';
 
 const NotificationSettings = () => {
   const { t } = useTranslation();
-  const { enabled, toggleEnabled, permission, requestPermission } = useNotifications({ poll: false });
+  const { toast } = useToast();
+  const {
+    enabled,
+    toggleEnabled,
+    permission,
+    requestPermission,
+    pushSupported,
+    isStandalone,
+    sendTestNotification,
+    isLoading
+  } = useNotifications({ poll: false });
 
-  const handleToggle = (checked: boolean) => {
+  const handleToggle = async (checked: boolean) => {
     if (checked && permission !== 'granted') {
-      requestPermission();
+      const success = await requestPermission();
+      if (success) {
+        toast({
+          title: t('notifications.enabledTitle'),
+          description: t('notifications.enabledBody'),
+        });
+      }
     } else {
-      toggleEnabled(checked);
+      await toggleEnabled(checked);
+    }
+  };
+
+  const handleTestNotification = async () => {
+    const success = await sendTestNotification();
+    if (success) {
+      toast({
+        title: t('notifications.testSent', 'Test Sent'),
+        description: t('notifications.testSentDesc', 'Check for a notification on your device.'),
+      });
+    } else {
+      toast({
+        title: t('common.error'),
+        description: t('notifications.testFailed', 'Failed to send test notification.'),
+        variant: 'destructive',
+      });
     }
   };
 
   return (
-    <div className="flex items-center justify-between">
-      <div className="space-y-0.5">
-        <p className="font-medium">{t('notifications.enableBrowser')}</p>
-        <p className="text-sm text-muted-foreground">
-          {permission === 'denied' ?
-            <span className="text-destructive">Permission denied by browser. Please reset site permissions.</span> :
-            t('notifications.description')
-          }
-        </p>
+    <div className="space-y-4">
+      {/* Push Support Status */}
+      {pushSupported && (
+        <div className="flex items-center gap-2 text-sm">
+          <span className="inline-flex items-center px-2 py-1 rounded-full text-xs font-medium bg-green-100 text-green-800 dark:bg-green-900/30 dark:text-green-400">
+            {t('notifications.pushSupported', 'Push Supported')}
+          </span>
+          {isStandalone && (
+            <span className="inline-flex items-center px-2 py-1 rounded-full text-xs font-medium bg-violet-100 text-violet-800 dark:bg-violet-900/30 dark:text-violet-400">
+              {t('notifications.installedApp', 'Installed App')}
+            </span>
+          )}
+        </div>
+      )}
+
+      {/* iOS PWA Hint */}
+      {!pushSupported && /iPhone|iPad|iPod/.test(navigator.userAgent) && !isStandalone && (
+        <div className="p-3 rounded-lg bg-amber-50 dark:bg-amber-900/20 border border-amber-200 dark:border-amber-800">
+          <p className="text-sm text-amber-800 dark:text-amber-200">
+            <strong>{t('notifications.iosHintTitle', 'Add to Home Screen')}</strong><br />
+            {t('notifications.iosHintDesc', 'To receive push notifications on iOS, tap the Share button and select "Add to Home Screen", then open the app from there.')}
+          </p>
+        </div>
+      )}
+
+      {/* Main Toggle */}
+      <div className="flex items-center justify-between">
+        <div className="space-y-0.5">
+          <p className="font-medium">
+            {pushSupported
+              ? t('notifications.enablePush', 'Push Notifications')
+              : t('notifications.enableBrowser')}
+          </p>
+          <p className="text-sm text-muted-foreground">
+            {permission === 'denied' ? (
+              <span className="text-destructive">
+                {t('notifications.permissionDenied', 'Permission denied by browser. Please reset site permissions.')}
+              </span>
+            ) : pushSupported ? (
+              t('notifications.pushDescription', 'Receive notifications even when the app is closed.')
+            ) : (
+              t('notifications.description')
+            )}
+          </p>
+        </div>
+        <Switch
+          checked={enabled}
+          onCheckedChange={handleToggle}
+          disabled={permission === 'denied' || isLoading}
+        />
       </div>
-      <Switch
-        checked={enabled}
-        onCheckedChange={handleToggle}
-        disabled={permission === 'denied'}
-      />
+
+      {/* Test Button */}
+      {enabled && pushSupported && (
+        <Button
+          variant="outline"
+          size="sm"
+          onClick={handleTestNotification}
+          disabled={isLoading}
+          className="w-full sm:w-auto"
+        >
+          {t('notifications.sendTest', 'Send Test Notification')}
+        </Button>
+      )}
     </div>
   );
 };

package-lock.json

@@ -84,6 +84,7 @@
         "tw-animate-css": "^1.2.5",
         "vaul": "^1.1.2",
         "vite-plugin-pwa": "^1.2.0",
+        "web-push": "^3.6.7",
         "wouter": "^3.3.5",
         "ws": "^8.18.0",
         "zod": "^3.24.2",
@@ -104,6 +105,7 @@
         "@types/passport-local": "^1.0.38",
         "@types/react": "^18.3.11",
         "@types/react-dom": "^18.3.1",
+        "@types/web-push": "^3.6.4",
         "@types/ws": "^8.5.13",
         "@vitejs/plugin-react": "^4.3.2",
         "autoprefixer": "^10.4.20",
@@ -7002,6 +7004,16 @@
       "integrity": "sha512-ko/gIFJRv177XgZsZcBwnqJN5x/Gien8qNOn0D5bQU/zAzVf9Zt3BlcUiLqhV9y4ARk0GbT3tnUiPNgnTXzc/Q==",
       "license": "MIT"
     },
+    "node_modules/@types/web-push": {
+      "version": "3.6.4",
+      "resolved": "https://registry.npmjs.org/@types/web-push/-/web-push-3.6.4.tgz",
+      "integrity": "sha512-GnJmSr40H3RAnj0s34FNTcJi1hmWFV5KXugE0mYWnYhgTAHLJ/dJKAwDmvPJYMke0RplY2XE9LnM4hqSqKIjhQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@types/ws": {
       "version": "8.18.1",
       "resolved": "https://registry.npmjs.org/@types/ws/-/ws-8.18.1.tgz",
@@ -7194,6 +7206,18 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/asn1.js": {
+      "version": "5.4.1",
+      "resolved": "https://registry.npmjs.org/asn1.js/-/asn1.js-5.4.1.tgz",
+      "integrity": "sha512-+I//4cYPccV8LdmBLiX8CYvf9Sp3vQsrqu2QNXRcrbiWvcx/UdlFiqUJJzxRQxgsZmvhXhn4cSKeSmoFjVdupA==",
+      "license": "MIT",
+      "dependencies": {
+        "bn.js": "^4.0.0",
+        "inherits": "^2.0.1",
+        "minimalistic-assert": "^1.0.0",
+        "safer-buffer": "^2.1.0"
+      }
+    },
     "node_modules/async": {
       "version": "3.2.6",
       "resolved": "https://registry.npmjs.org/async/-/async-3.2.6.tgz",
@@ -7383,6 +7407,12 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/bn.js": {
+      "version": "4.12.2",
+      "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.12.2.tgz",
+      "integrity": "sha512-n4DSx829VRTRByMRGdjQ9iqsN0Bh4OolPsFnaZBLcbi8iXcB+kJ9s7EnRt4wILZNV3kPLHkRVfOc/HvhC3ovDw==",
+      "license": "MIT"
+    },
     "node_modules/body-parser": {
       "version": "1.20.4",
       "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.4.tgz",
@@ -7484,27 +7514,18 @@
         "node": "^6 || ^7 || ^8 || ^9 || ^10 || ^11 || ^12 || >=13.7"
       }
     },
+    "node_modules/buffer-equal-constant-time": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/buffer-equal-constant-time/-/buffer-equal-constant-time-1.0.1.tgz",
+      "integrity": "sha512-zRpUiDwd/xk6ADqPMATG8vc9VPrkck7T07OIx0gnjmJAnHnTVXNQG3vfvWNuiZIkwu9KrKdA1iJKfsfTVxE6NA==",
+      "license": "BSD-3-Clause"
+    },
     "node_modules/buffer-from": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.2.tgz",
       "integrity": "sha512-E+XQCRwSbaaiChtv6k6Dwgc+bx+Bs6vuKJHHl5kox/BaKbhiXzqQOwK4cO22yElGp2OCmjwVhT3HmxgyPGnJfQ==",
       "license": "MIT"
     },
-    "node_modules/bufferutil": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/bufferutil/-/bufferutil-4.1.0.tgz",
-      "integrity": "sha512-ZMANVnAixE6AWWnPzlW2KpUrxhm9woycYvPOo67jWHyFowASTEd9s+QN1EIMsSDtwhIxN4sWE1jotpuDUIgyIw==",
-      "hasInstallScript": true,
-      "license": "MIT",
-      "optional": true,
-      "peer": true,
-      "dependencies": {
-        "node-gyp-build": "^4.3.0"
-      },
-      "engines": {
-        "node": ">=6.14.2"
-      }
-    },
     "node_modules/bytes": {
       "version": "3.1.2",
       "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
@@ -8855,6 +8876,15 @@
       "integrity": "sha512-I88TYZWc9XiYHRQ4/3c5rjjfgkjhLyW2luGIheGERbNQ6OY7yTybanSpDXZa8y7VUP9YmDcYa+eyq4ca7iLqWA==",
       "license": "MIT"
     },
+    "node_modules/ecdsa-sig-formatter": {
+      "version": "1.0.11",
+      "resolved": "https://registry.npmjs.org/ecdsa-sig-formatter/-/ecdsa-sig-formatter-1.0.11.tgz",
+      "integrity": "sha512-nagl3RYrbNv6kQkeJIpt6NJZy8twLB/2vtz6yN9Z4vRKHN4/QZJIEbqohALSgwKdnksuY3k5Addp5lg8sVoVcQ==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "safe-buffer": "^5.0.1"
+      }
+    },
     "node_modules/ee-first": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
@@ -9999,6 +10029,15 @@
         "url": "https://opencollective.com/unified"
       }
     },
+    "node_modules/http_ece": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/http_ece/-/http_ece-1.2.0.tgz",
+      "integrity": "sha512-JrF8SSLVmcvc5NducxgyOrKXe3EsyHMgBFgSaIUGmArKe+rwr0uphRkRXvwiom3I+fpIfoItveHrfudL8/rxuA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=16"
+      }
+    },
     "node_modules/http-cookie-agent": {
       "version": "7.0.3",
       "resolved": "https://registry.npmjs.org/http-cookie-agent/-/http-cookie-agent-7.0.3.tgz",
@@ -10043,6 +10082,19 @@
         "url": "https://opencollective.com/express"
       }
     },
+    "node_modules/https-proxy-agent": {
+      "version": "7.0.6",
+      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-7.0.6.tgz",
+      "integrity": "sha512-vK9P5/iUfdl95AI+JVyUuIcVtd4ofvtrOr3HNtM2yxC9bnMbEdp3x01OhQNnjb8IJYi38VlTE3mBXwcfvywuSw==",
+      "license": "MIT",
+      "dependencies": {
+        "agent-base": "^7.1.2",
+        "debug": "4"
+      },
+      "engines": {
+        "node": ">= 14"
+      }
+    },
     "node_modules/i18next": {
       "version": "25.7.4",
       "resolved": "https://registry.npmjs.org/i18next/-/i18next-25.7.4.tgz",
@@ -10748,6 +10800,27 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/jwa": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/jwa/-/jwa-2.0.1.tgz",
+      "integrity": "sha512-hRF04fqJIP8Abbkq5NKGN0Bbr3JxlQ+qhZufXVr0DvujKy93ZCbXZMHDL4EOtodSbCWxOqR8MS1tXA5hwqCXDg==",
+      "license": "MIT",
+      "dependencies": {
+        "buffer-equal-constant-time": "^1.0.1",
+        "ecdsa-sig-formatter": "1.0.11",
+        "safe-buffer": "^5.0.1"
+      }
+    },
+    "node_modules/jws": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/jws/-/jws-4.0.1.tgz",
+      "integrity": "sha512-EKI/M/yqPncGUUh44xz0PxSidXFr/+r0pA70+gIYhjv+et7yxM+s29Y+VGDkovRofQem0fs7Uvf4+YmAdyRduA==",
+      "license": "MIT",
+      "dependencies": {
+        "jwa": "^2.0.1",
+        "safe-buffer": "^5.0.1"
+      }
+    },
     "node_modules/leven": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/leven/-/leven-3.1.0.tgz",
@@ -12056,6 +12129,12 @@
         "node": ">= 0.6"
       }
     },
+    "node_modules/minimalistic-assert": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz",
+      "integrity": "sha512-UtJcAD4yEaGtjPezWuO9wC4nwUnVH/8/Im3yEHQP4b67cXlD/Qr9hdITCU1xDbSEXg2XKNaP8jsReV7vQd00/A==",
+      "license": "ISC"
+    },
     "node_modules/minimatch": {
       "version": "10.1.1",
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-10.1.1.tgz",
@@ -12071,6 +12150,15 @@
         "url": "https://github.com/sponsors/isaacs"
       }
     },
+    "node_modules/minimist": {
+      "version": "1.2.8",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.8.tgz",
+      "integrity": "sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
     "node_modules/minipass": {
       "version": "7.1.2",
       "resolved": "https://registry.npmjs.org/minipass/-/minipass-7.1.2.tgz",
@@ -16094,6 +16182,25 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/web-push": {
+      "version": "3.6.7",
+      "resolved": "https://registry.npmjs.org/web-push/-/web-push-3.6.7.tgz",
+      "integrity": "sha512-OpiIUe8cuGjrj3mMBFWY+e4MMIkW3SVT+7vEIjvD9kejGUypv8GPDf84JdPWskK8zMRIJ6xYGm+Kxr8YkPyA0A==",
+      "license": "MPL-2.0",
+      "dependencies": {
+        "asn1.js": "^5.3.0",
+        "http_ece": "1.2.0",
+        "https-proxy-agent": "^7.0.0",
+        "jws": "^4.0.0",
+        "minimist": "^1.2.5"
+      },
+      "bin": {
+        "web-push": "src/cli.js"
+      },
+      "engines": {
+        "node": ">= 16"
+      }
+    },
     "node_modules/webidl-conversions": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-4.0.2.tgz",

package.json

@@ -86,6 +86,7 @@
     "tw-animate-css": "^1.2.5",
     "vaul": "^1.1.2",
     "vite-plugin-pwa": "^1.2.0",
+    "web-push": "^3.6.7",
     "wouter": "^3.3.5",
     "ws": "^8.18.0",
     "zod": "^3.24.2",
@@ -106,6 +107,7 @@
     "@types/passport-local": "^1.0.38",
     "@types/react": "^18.3.11",
     "@types/react-dom": "^18.3.1",
+    "@types/web-push": "^3.6.4",
     "@types/ws": "^8.5.13",
     "@vitejs/plugin-react": "^4.3.2",
     "autoprefixer": "^10.4.20",

server/index.ts

@@ -2,6 +2,7 @@ import express, { type Request, Response, NextFunction } from "express";
 import { registerRoutes } from "./routes.js";
 import { initializeDatabase, closeDatabase } from "./db.js";
 import { storage } from "./storage";
+import { initializeVapid } from "./push.js";
 
 const app = express();
 app.set("trust proxy", true);
@@ -79,6 +80,8 @@ app.use((req, res, next) => {
   if (process.env.NODE_ENV === 'production' || process.env.USE_DB === 'true') {
     try {
       await initializeDatabase();
+      // Initialize Web Push VAPID keys after database is ready
+      await initializeVapid();
     } catch (error) {
       console.error('Failed to initialize database:', error);
       process.exit(1);

server/push.ts

@@ -0,0 +1,291 @@
+import webpush from 'web-push';
+import { getDatabase } from './db';
+import * as schema from '@shared/schema';
+import { eq, and } from 'drizzle-orm';
+
+// Types
+export interface PushSubscriptionData {
+  endpoint: string;
+  keys: {
+    p256dh: string;
+    auth: string;
+  };
+}
+
+export interface PushNotificationPayload {
+  title: string;
+  body: string;
+  icon?: string;
+  badge?: string;
+  tag?: string;
+  data?: Record<string, unknown>;
+}
+
+// VAPID keys management
+let vapidConfigured = false;
+
+export async function initializeVapid(): Promise<void> {
+  const db = getDatabase();
+  if (!db) {
+    console.log('[Push] Database not available, skipping VAPID initialization');
+    return;
+  }
+
+  try {
+    // Try to get existing VAPID keys from system settings
+    const publicKeyResult = await db.select()
+      .from(schema.systemSettings)
+      .where(eq(schema.systemSettings.key, 'vapid_public_key'));
+
+    const privateKeyResult = await db.select()
+      .from(schema.systemSettings)
+      .where(eq(schema.systemSettings.key, 'vapid_private_key'));
+
+    let publicKey = publicKeyResult[0]?.value;
+    let privateKey = privateKeyResult[0]?.value;
+
+    // Generate new keys if they don't exist
+    if (!publicKey || !privateKey) {
+      console.log('[Push] Generating new VAPID keys...');
+      const keys = webpush.generateVAPIDKeys();
+      publicKey = keys.publicKey;
+      privateKey = keys.privateKey;
+
+      // Store keys in system settings
+      await db.insert(schema.systemSettings)
+        .values({ key: 'vapid_public_key', value: publicKey })
+        .onConflictDoUpdate({
+          target: schema.systemSettings.key,
+          set: { value: publicKey }
+        });
+
+      await db.insert(schema.systemSettings)
+        .values({ key: 'vapid_private_key', value: privateKey })
+        .onConflictDoUpdate({
+          target: schema.systemSettings.key,
+          set: { value: privateKey }
+        });
+
+      console.log('[Push] VAPID keys generated and stored');
+    }
+
+    // Configure web-push with VAPID keys
+    const vapidEmail = process.env.VAPID_EMAIL || 'mailto:admin@taskflow.app';
+    webpush.setVapidDetails(vapidEmail, publicKey, privateKey);
+    vapidConfigured = true;
+    console.log('[Push] VAPID configured successfully');
+  } catch (error) {
+    console.error('[Push] Failed to initialize VAPID:', error);
+  }
+}
+
+export async function getVapidPublicKey(): Promise<string | null> {
+  const db = getDatabase();
+  if (!db) return null;
+
+  try {
+    const result = await db.select()
+      .from(schema.systemSettings)
+      .where(eq(schema.systemSettings.key, 'vapid_public_key'));
+
+    return result[0]?.value || null;
+  } catch (error) {
+    console.error('[Push] Failed to get VAPID public key:', error);
+    return null;
+  }
+}
+
+// Subscription management
+export async function savePushSubscription(
+  userId: string,
+  subscription: PushSubscriptionData,
+  userAgent?: string
+): Promise<boolean> {
+  const db = getDatabase();
+  if (!db) return false;
+
+  try {
+    // Check if subscription already exists
+    const existing = await db.select()
+      .from(schema.pushSubscriptions)
+      .where(eq(schema.pushSubscriptions.endpoint, subscription.endpoint));
+
+    if (existing[0]) {
+      // Update existing subscription
+      await db.update(schema.pushSubscriptions)
+        .set({
+          userId,
+          p256dh: subscription.keys.p256dh,
+          auth: subscription.keys.auth,
+          userAgent,
+          lastUsedAt: new Date()
+        })
+        .where(eq(schema.pushSubscriptions.endpoint, subscription.endpoint));
+    } else {
+      // Create new subscription
+      await db.insert(schema.pushSubscriptions)
+        .values({
+          userId,
+          endpoint: subscription.endpoint,
+          p256dh: subscription.keys.p256dh,
+          auth: subscription.keys.auth,
+          userAgent
+        });
+    }
+
+    console.log(`[Push] Saved subscription for user ${userId}`);
+    return true;
+  } catch (error) {
+    console.error('[Push] Failed to save subscription:', error);
+    return false;
+  }
+}
+
+export async function removePushSubscription(endpoint: string): Promise<boolean> {
+  const db = getDatabase();
+  if (!db) return false;
+
+  try {
+    await db.delete(schema.pushSubscriptions)
+      .where(eq(schema.pushSubscriptions.endpoint, endpoint));
+
+    console.log('[Push] Removed subscription');
+    return true;
+  } catch (error) {
+    console.error('[Push] Failed to remove subscription:', error);
+    return false;
+  }
+}
+
+export async function removeUserSubscriptions(userId: string): Promise<boolean> {
+  const db = getDatabase();
+  if (!db) return false;
+
+  try {
+    await db.delete(schema.pushSubscriptions)
+      .where(eq(schema.pushSubscriptions.userId, userId));
+
+    console.log(`[Push] Removed all subscriptions for user ${userId}`);
+    return true;
+  } catch (error) {
+    console.error('[Push] Failed to remove user subscriptions:', error);
+    return false;
+  }
+}
+
+export async function getUserSubscriptions(userId: string): Promise<schema.PushSubscription[]> {
+  const db = getDatabase();
+  if (!db) return [];
+
+  try {
+    return await db.select()
+      .from(schema.pushSubscriptions)
+      .where(eq(schema.pushSubscriptions.userId, userId));
+  } catch (error) {
+    console.error('[Push] Failed to get user subscriptions:', error);
+    return [];
+  }
+}
+
+// Send push notification
+export async function sendPushNotification(
+  userId: string,
+  payload: PushNotificationPayload
+): Promise<{ sent: number; failed: number }> {
+  if (!vapidConfigured) {
+    console.log('[Push] VAPID not configured, skipping notification');
+    return { sent: 0, failed: 0 };
+  }
+
+  const subscriptions = await getUserSubscriptions(userId);
+
+  if (subscriptions.length === 0) {
+    console.log(`[Push] No subscriptions for user ${userId}`);
+    return { sent: 0, failed: 0 };
+  }
+
+  const notificationPayload = JSON.stringify({
+    title: payload.title,
+    body: payload.body,
+    icon: payload.icon || '/favicon.png',
+    badge: payload.badge || '/favicon.png',
+    tag: payload.tag || `taskflow-${Date.now()}`,
+    data: payload.data || {}
+  });
+
+  let sent = 0;
+  let failed = 0;
+
+  for (const subscription of subscriptions) {
+    try {
+      await webpush.sendNotification(
+        {
+          endpoint: subscription.endpoint,
+          keys: {
+            p256dh: subscription.p256dh,
+            auth: subscription.auth
+          }
+        },
+        notificationPayload
+      );
+
+      // Update last used timestamp
+      const db = getDatabase();
+      if (db) {
+        await db.update(schema.pushSubscriptions)
+          .set({ lastUsedAt: new Date() })
+          .where(eq(schema.pushSubscriptions.id, subscription.id));
+      }
+
+      sent++;
+    } catch (error: any) {
+      console.error(`[Push] Failed to send to subscription ${subscription.id}:`, error.message);
+
+      // Remove invalid subscriptions (410 Gone or 404 Not Found)
+      if (error.statusCode === 410 || error.statusCode === 404) {
+        await removePushSubscription(subscription.endpoint);
+        console.log('[Push] Removed invalid subscription');
+      }
+
+      failed++;
+    }
+  }
+
+  console.log(`[Push] Sent ${sent} notifications, ${failed} failed for user ${userId}`);
+  return { sent, failed };
+}
+
+// Send notification to multiple users
+export async function sendPushNotificationToUsers(
+  userIds: string[],
+  payload: PushNotificationPayload
+): Promise<{ sent: number; failed: number }> {
+  let totalSent = 0;
+  let totalFailed = 0;
+
+  for (const userId of userIds) {
+    const result = await sendPushNotification(userId, payload);
+    totalSent += result.sent;
+    totalFailed += result.failed;
+  }
+
+  return { sent: totalSent, failed: totalFailed };
+}
+
+// Task notification helpers
+export async function sendTaskReminderNotification(
+  userId: string,
+  taskTitle: string,
+  type: 'upcoming' | 'overdue'
+): Promise<void> {
+  const payload: PushNotificationPayload = {
+    title: type === 'upcoming' ? `Upcoming: ${taskTitle}` : `Overdue: ${taskTitle}`,
+    body: type === 'upcoming'
+      ? 'This task is due soon!'
+      : 'This task is now overdue!',
+    tag: `task-${type}-${Date.now()}`,
+    data: { type, taskTitle }
+  };
+
+  await sendPushNotification(userId, payload);
+}

server/routes.ts

@@ -8,6 +8,7 @@ import { mcpServer } from "./mcp";
 import { AiService, DEFAULT_SYSTEM_PROMPT } from "./ai.js";
 import { RecurrenceService } from "./services/recurrence.js";
 import { GamificationService } from "./gamification.js";
+import { getVapidPublicKey, savePushSubscription, removePushSubscription, removeUserSubscriptions, sendPushNotification } from "./push.js";
 
 const emailService = new EmailService(storage);
 const aiService = new AiService(storage);
@@ -2219,6 +2220,126 @@ ${activeTasksWithLabels.slice(0, 5).map(t => `- [${t.priority}] [${t.label}] ${t
     }
   });
 
+  // ============================================
+  // PUSH NOTIFICATION ROUTES
+  // ============================================
+
+  // Get VAPID public key (needed by client to subscribe)
+  app.get("/api/push/vapid-public-key", async (req, res) => {
+    try {
+      const publicKey = await getVapidPublicKey();
+      if (!publicKey) {
+        return res.status(503).json({ error: "Push notifications not configured" });
+      }
+      res.json({ publicKey });
+    } catch (e) {
+      console.error("Get VAPID key failed:", e);
+      res.status(500).json({ error: "Failed to get VAPID key" });
+    }
+  });
+
+  // Subscribe to push notifications
+  app.post("/api/push/subscribe", async (req, res) => {
+    if (!req.isAuthenticated()) return res.sendStatus(401);
+    const userId = (req.user as User).id;
+    try {
+      const { subscription } = req.body;
+      if (!subscription || !subscription.endpoint || !subscription.keys) {
+        return res.status(400).json({ error: "Invalid subscription data" });
+      }
+
+      const userAgent = req.headers['user-agent'];
+      const success = await savePushSubscription(userId, subscription, userAgent);
+
+      if (success) {
+        // Send a welcome notification to confirm it works
+        await sendPushNotification(userId, {
+          title: "Notifications Enabled",
+          body: "You'll now receive task reminders even when the app is closed!",
+          tag: "welcome"
+        });
+        res.json({ success: true });
+      } else {
+        res.status(500).json({ error: "Failed to save subscription" });
+      }
+    } catch (e) {
+      console.error("Subscribe failed:", e);
+      res.status(500).json({ error: "Failed to subscribe" });
+    }
+  });
+
+  // Unsubscribe from push notifications
+  app.post("/api/push/unsubscribe", async (req, res) => {
+    if (!req.isAuthenticated()) return res.sendStatus(401);
+    try {
+      const { endpoint } = req.body;
+      if (!endpoint) {
+        return res.status(400).json({ error: "Endpoint required" });
+      }
+
+      const success = await removePushSubscription(endpoint);
+      res.json({ success });
+    } catch (e) {
+      console.error("Unsubscribe failed:", e);
+      res.status(500).json({ error: "Failed to unsubscribe" });
+    }
+  });
+
+  // Unsubscribe all devices for current user
+  app.delete("/api/push/subscriptions", async (req, res) => {
+    if (!req.isAuthenticated()) return res.sendStatus(401);
+    const userId = (req.user as User).id;
+    try {
+      const success = await removeUserSubscriptions(userId);
+      res.json({ success });
+    } catch (e) {
+      console.error("Remove subscriptions failed:", e);
+      res.status(500).json({ error: "Failed to remove subscriptions" });
+    }
+  });
+
+  // Handle subscription changes (from service worker)
+  app.post("/api/push/resubscribe", async (req, res) => {
+    if (!req.isAuthenticated()) return res.sendStatus(401);
+    const userId = (req.user as User).id;
+    try {
+      const { oldEndpoint, newSubscription } = req.body;
+
+      // Remove old subscription
+      if (oldEndpoint) {
+        await removePushSubscription(oldEndpoint);
+      }
+
+      // Save new subscription
+      if (newSubscription) {
+        const userAgent = req.headers['user-agent'];
+        await savePushSubscription(userId, newSubscription, userAgent);
+      }
+
+      res.json({ success: true });
+    } catch (e) {
+      console.error("Resubscribe failed:", e);
+      res.status(500).json({ error: "Failed to resubscribe" });
+    }
+  });
+
+  // Test notification (useful for debugging)
+  app.post("/api/push/test", async (req, res) => {
+    if (!req.isAuthenticated()) return res.sendStatus(401);
+    const userId = (req.user as User).id;
+    try {
+      const result = await sendPushNotification(userId, {
+        title: "Test Notification",
+        body: "Push notifications are working!",
+        tag: "test"
+      });
+      res.json(result);
+    } catch (e) {
+      console.error("Test notification failed:", e);
+      res.status(500).json({ error: "Failed to send test notification" });
+    }
+  });
+
   // End of routes
   return httpServer;
 }

shared/schema.ts

@@ -524,3 +524,28 @@ export const encouragementLogs = pgTable("encouragement_logs", {
 });
 
 export type EncouragementLog = typeof encouragementLogs.$inferSelect;
+
+// ============================================
+// PUSH NOTIFICATIONS
+// ============================================
+
+// Push Subscriptions - Store Web Push subscriptions for each user/device
+export const pushSubscriptions = pgTable("push_subscriptions", {
+  id: varchar("id").primaryKey().default(sql`gen_random_uuid()`),
+  userId: varchar("user_id").references(() => users.id).notNull(),
+  endpoint: text("endpoint").notNull().unique(),
+  p256dh: text("p256dh").notNull(), // Public key
+  auth: text("auth").notNull(), // Auth secret
+  userAgent: text("user_agent"), // To identify device
+  createdAt: timestamp("created_at").defaultNow(),
+  lastUsedAt: timestamp("last_used_at").defaultNow(),
+});
+
+export const insertPushSubscriptionSchema = createInsertSchema(pushSubscriptions).omit({
+  id: true,
+  createdAt: true,
+  lastUsedAt: true,
+});
+
+export type InsertPushSubscription = z.infer<typeof insertPushSubscriptionSchema>;
+export type PushSubscription = typeof pushSubscriptions.$inferSelect;