fix: Notification opens ComposeMainActivity, WiFi-Only toggle in own section

Fixes:
1. Notification click now opens ComposeMainActivity instead of legacy MainActivity
2. WiFi-Only toggle moved to its own 'Network Restriction' section at top of sync settings
3. Added hint explaining WiFi-Connect trigger is not affected by WiFi-Only setting

UI Changes:
- New section header: 'Network Restriction' / 'Netzwerk-Einschränkung'
- WiFi-Only toggle now clearly separated from sync triggers
- Info card shows when WiFi-Only is enabled explaining the exception

android/app/src/main/java/dev/dettmer/simplenotes/sync/NetworkMonitor.kt

@@ -68,15 +68,20 @@ class NetworkMonitor(private val context: Context) {
                     
                     lastConnectedNetworkId = currentNetworkId
                     
-                    // Auto-Sync check
-                    val autoSyncEnabled = prefs.getBoolean(Constants.KEY_AUTO_SYNC, false)
-                    Logger.d(TAG, "    Auto-Sync enabled: $autoSyncEnabled")
+                    // WiFi-Connect Trigger prüfen - NICHT KEY_AUTO_SYNC!
+                    // Der Callback ist registriert WEIL KEY_SYNC_TRIGGER_WIFI_CONNECT = true
+                    // Aber defensive Prüfung für den Fall, dass Settings sich geändert haben
+                    val wifiConnectEnabled = prefs.getBoolean(
+                        Constants.KEY_SYNC_TRIGGER_WIFI_CONNECT,
+                        Constants.DEFAULT_TRIGGER_WIFI_CONNECT
+                    )
+                    Logger.d(TAG, "    WiFi-Connect trigger enabled: $wifiConnectEnabled")
                     
-                    if (autoSyncEnabled) {
-                        Logger.d(TAG, "    ✅ Triggering WorkManager...")
+                    if (wifiConnectEnabled) {
+                        Logger.d(TAG, "    ✅ Triggering WiFi-Connect sync...")
                         triggerWifiConnectSync()
                     } else {
-                        Logger.d(TAG, "    ❌ Auto-sync disabled - not triggering")
+                        Logger.d(TAG, "    ⏭️ WiFi-Connect trigger disabled in settings")
                     }
                 } else {
                     Logger.d(TAG, "    ⚠️ Same WiFi network as before - ignoring (no network change)")
@@ -140,23 +145,55 @@ class NetworkMonitor(private val context: Context) {
     
     /**
      * Startet WorkManager mit Network Constraints + NetworkCallback
+     * 
+     * 🆕 v1.7.0: Überarbeitete Logik - WiFi-Connect Trigger funktioniert UNABHÄNGIG von KEY_AUTO_SYNC
+     * - KEY_AUTO_SYNC + KEY_SYNC_TRIGGER_PERIODIC → Periodic Sync
+     * - KEY_SYNC_TRIGGER_WIFI_CONNECT → WiFi-Connect Trigger (unabhängig!)
      */
     fun startMonitoring() {
-        val autoSyncEnabled = prefs.getBoolean(Constants.KEY_AUTO_SYNC, false)
+        Logger.d(TAG, "🚀 NetworkMonitor.startMonitoring() called")
         
-        if (!autoSyncEnabled) {
-            Logger.d(TAG, "Auto-sync disabled - stopping all monitoring")
-            stopMonitoring()
-            return
+        val autoSyncEnabled = prefs.getBoolean(Constants.KEY_AUTO_SYNC, false)
+        val periodicEnabled = prefs.getBoolean(Constants.KEY_SYNC_TRIGGER_PERIODIC, Constants.DEFAULT_TRIGGER_PERIODIC)
+        val wifiConnectEnabled = prefs.getBoolean(Constants.KEY_SYNC_TRIGGER_WIFI_CONNECT, Constants.DEFAULT_TRIGGER_WIFI_CONNECT)
+        
+        Logger.d(TAG, "    Settings: autoSync=$autoSyncEnabled, periodic=$periodicEnabled, wifiConnect=$wifiConnectEnabled")
+        
+        // 1. Periodic Sync (nur wenn KEY_AUTO_SYNC UND KEY_SYNC_TRIGGER_PERIODIC aktiv)
+        if (autoSyncEnabled && periodicEnabled) {
+            Logger.d(TAG, "📅 Starting periodic sync...")
+            startPeriodicSync()
+        } else {
+            WorkManager.getInstance(context).cancelUniqueWork(AUTO_SYNC_WORK_NAME)
+            Logger.d(TAG, "⏭️ Periodic sync disabled (autoSync=$autoSyncEnabled, periodic=$periodicEnabled)")
         }
         
-        Logger.d(TAG, "🚀 Starting NetworkMonitor (WorkManager + WiFi Callback)")
-        
-        // 1. WorkManager für periodic sync
-        startPeriodicSync()
-        
-        // 2. NetworkCallback für WiFi-Connect Detection
+        // 2. WiFi-Connect Trigger (🆕 UNABHÄNGIG von KEY_AUTO_SYNC!)
+        if (wifiConnectEnabled) {
+            Logger.d(TAG, "📶 Starting WiFi monitoring...")
             startWifiMonitoring()
+        } else {
+            stopWifiMonitoring()
+            Logger.d(TAG, "⏭️ WiFi-Connect trigger disabled")
+        }
+        
+        // 3. Logging für Debug
+        if (!autoSyncEnabled && !wifiConnectEnabled) {
+            Logger.d(TAG, "🛑 No background triggers active")
+        }
+    }
+    
+    /**
+     * 🆕 v1.7.0: Stoppt nur WiFi-Monitoring, nicht den gesamten NetworkMonitor
+     */
+    private fun stopWifiMonitoring() {
+        try {
+            connectivityManager.unregisterNetworkCallback(networkCallback)
+            Logger.d(TAG, "🛑 WiFi NetworkCallback unregistered")
+        } catch (e: Exception) {
+            // Already unregistered - das ist OK
+            Logger.d(TAG, "    WiFi callback already unregistered")
+        }
     }
     
     /**

android/app/src/main/java/dev/dettmer/simplenotes/ui/settings/screens/SyncSettingsScreen.kt

@@ -85,6 +85,31 @@ fun SyncSettingsScreen(
                 Spacer(modifier = Modifier.height(8.dp))
             }
             
+            // ═══════════════════════════════════════════════════════════════
+            // 🆕 v1.7.0: NETZWERK-EINSCHRÄNKUNG Section (Global für alle Trigger)
+            // ═══════════════════════════════════════════════════════════════
+            
+            SettingsSectionHeader(text = stringResource(R.string.sync_section_network))
+            
+            // WiFi-Only Sync Toggle - Gilt für ALLE Trigger außer WiFi-Connect
+            SettingsSwitch(
+                title = stringResource(R.string.sync_wifi_only_title),
+                subtitle = stringResource(R.string.sync_wifi_only_subtitle),
+                checked = wifiOnlySync,
+                onCheckedChange = { viewModel.setWifiOnlySync(it) },
+                icon = Icons.Default.Wifi,
+                enabled = isServerConfigured
+            )
+            
+            // Info-Hinweis dass WiFi-Connect davon ausgenommen ist
+            if (wifiOnlySync && isServerConfigured) {
+                SettingsInfoCard(
+                    text = stringResource(R.string.sync_wifi_only_hint)
+                )
+            }
+            
+            SettingsDivider()
+            
             // ═══════════════════════════════════════════════════════════════
             // SOFORT-SYNC Section
             // ═══════════════════════════════════════════════════════════════
@@ -111,16 +136,6 @@ fun SyncSettingsScreen(
                 enabled = isServerConfigured
             )
             
-            // 🆕 v1.7.0: WiFi-Only Sync Toggle
-            SettingsSwitch(
-                title = stringResource(R.string.sync_wifi_only_title),
-                subtitle = stringResource(R.string.sync_wifi_only_subtitle),
-                checked = wifiOnlySync,
-                onCheckedChange = { viewModel.setWifiOnlySync(it) },
-                icon = Icons.Default.Wifi,
-                enabled = isServerConfigured
-            )
-            
             SettingsDivider()
             
             // ═══════════════════════════════════════════════════════════════

android/app/src/main/java/dev/dettmer/simplenotes/utils/NotificationHelper.kt

@@ -11,7 +11,7 @@ import android.os.Handler
 import android.os.Looper
 import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
-import dev.dettmer.simplenotes.MainActivity
+import dev.dettmer.simplenotes.ui.main.ComposeMainActivity
 
 object NotificationHelper {
     
@@ -58,7 +58,7 @@ object NotificationHelper {
      * Zeigt Erfolgs-Notification nach Sync
      */
     fun showSyncSuccessNotification(context: Context, syncedCount: Int) {
-        val intent = Intent(context, MainActivity::class.java).apply {
+        val intent = Intent(context, ComposeMainActivity::class.java).apply {
             flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
         }
         
@@ -154,7 +154,7 @@ object NotificationHelper {
      * Zeigt Notification bei erkanntem Konflikt
      */
     fun showConflictNotification(context: Context, conflictCount: Int) {
-        val intent = Intent(context, MainActivity::class.java)
+        val intent = Intent(context, ComposeMainActivity::class.java)
         val pendingIntent = PendingIntent.getActivity(
             context, 0, intent,
             PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT
@@ -229,7 +229,7 @@ object NotificationHelper {
      */
     fun showSyncSuccess(context: Context, count: Int) {
         // PendingIntent für App-Öffnung
-        val intent = Intent(context, MainActivity::class.java).apply {
+        val intent = Intent(context, ComposeMainActivity::class.java).apply {
             flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TOP
         }
         val pendingIntent = PendingIntent.getActivity(
@@ -260,7 +260,7 @@ object NotificationHelper {
      */
     fun showSyncError(context: Context, message: String) {
         // PendingIntent für App-Öffnung
-        val intent = Intent(context, MainActivity::class.java).apply {
+        val intent = Intent(context, ComposeMainActivity::class.java).apply {
             flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TOP
         }
         val pendingIntent = PendingIntent.getActivity(
@@ -297,7 +297,7 @@ object NotificationHelper {
      */
     fun showSyncWarning(context: Context, hoursSinceLastSync: Long) {
         // PendingIntent für App-Öffnung
-        val intent = Intent(context, MainActivity::class.java).apply {
+        val intent = Intent(context, ComposeMainActivity::class.java).apply {
             flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TOP
         }
         val pendingIntent = PendingIntent.getActivity(

android/app/src/main/res/values-de/strings.xml

@@ -206,10 +206,13 @@
     <string name="auto_sync_info">ℹ️ Auto-Sync:\n\n• Prüft alle 30 Min ob Server erreichbar\n• Funktioniert bei jeder WiFi-Verbindung\n• Läuft auch im Hintergrund\n• Minimaler Akkuverbrauch (~0.4%%/Tag)</string>
     
     <!-- 🌟 v1.6.0: Configurable Sync Triggers -->
+    <string name="sync_section_network">📶 Netzwerk-Einschränkung</string>
     <string name="sync_section_instant">📲 Sofort-Sync</string>
     <string name="sync_section_background">📡 Hintergrund-Sync</string>
     <string name="sync_section_advanced">⚙️ Erweitert</string>
     
+    <string name="sync_wifi_only_hint">💡 Der WiFi-Connect Trigger ist davon nicht betroffen \u2013 er synchronisiert immer wenn WiFi verbunden wird.</string>
+    
     <string name="sync_trigger_on_save_title">Nach dem Speichern</string>
     <string name="sync_trigger_on_save_subtitle">Sync sofort nach jeder Änderung</string>
     
@@ -228,7 +231,7 @@
     <!-- 🆕 v1.7.0: WiFi-Only Sync -->
     <string name="sync_wifi_only_title">Sync nur im WLAN</string>
     <string name="sync_wifi_only_subtitle">Sync wird nur durchgeführt wenn WLAN verbunden ist. Spart mobiles Datenvolumen und verhindert lange Wartezeit.</string>
-    <string name="sync_wifi_only_hint">Sync nur im WLAN möglich</string>
+    <string name="sync_wifi_only_blocked">Sync nur im WLAN möglich</string>
     
     <string name="sync_manual_hint">Manueller Sync (Toolbar/Pull-to-Refresh) ist ebenfalls verfügbar.</string>
     <string name="sync_manual_hint_disabled">Sync ist im Offline-Modus nicht verfügbar.</string>

android/app/src/main/res/values/strings.xml

@@ -206,10 +206,13 @@
     <string name="auto_sync_info">ℹ️ Auto-Sync:\n\n• Checks every 30 min if server is reachable\n• Works on any WiFi connection\n• Runs in background\n• Minimal battery usage (~0.4%%/day)</string>
     
     <!-- 🌟 v1.6.0: Configurable Sync Triggers -->
+    <string name="sync_section_network">📶 Network Restriction</string>
     <string name="sync_section_instant">📲 Instant Sync</string>
     <string name="sync_section_background">📡 Background Sync</string>
     <string name="sync_section_advanced">⚙️ Advanced</string>
     
+    <string name="sync_wifi_only_hint">💡 WiFi-Connect Trigger is not affected by this setting \u2013 it always syncs when WiFi is connected.</string>
+    
     <string name="sync_trigger_on_save_title">After Saving</string>
     <string name="sync_trigger_on_save_subtitle">Sync immediately after each change</string>
     
@@ -228,7 +231,7 @@
     <!-- 🆕 v1.7.0: WiFi-Only Sync -->
     <string name="sync_wifi_only_title">WiFi-only sync</string>
     <string name="sync_wifi_only_subtitle">Sync only when connected to WiFi. Saves mobile data and prevents long wait times.</string>
-    <string name="sync_wifi_only_hint">Sync only works when connected to WiFi</string>
+    <string name="sync_wifi_only_blocked">Sync only works when connected to WiFi</string>
     
     <string name="sync_manual_hint">Manual sync (toolbar/pull-to-refresh) is also available.</string>
     <string name="sync_manual_hint_disabled">Sync is not available in offline mode.</string>