feat: add notification prompting logic; implement methods to track and set notification prompts in PreferencesManager

CollabTableAndroid/app/src/main/java/com/collabtable/app/data/preferences/PreferencesManager.kt

@@ -179,6 +179,12 @@ class PreferencesManager(
         _notifyListContentUpdated.value = enabled
     }
 
+    fun hasPromptedNotifications(): Boolean = prefs.getBoolean(KEY_HAS_PROMPTED_NOTIFICATIONS, false)
+
+    fun setHasPromptedNotifications(prompted: Boolean) {
+        prefs.edit().putBoolean(KEY_HAS_PROMPTED_NOTIFICATIONS, prompted).apply()
+    }
+
     // Persist per-list column widths (fieldId -> widthDp)
     // Stored as a JSON object string in SharedPreferences under key: COLUMN_WIDTHS_PREFIX + listId
     fun getColumnWidths(listId: String): Map<String, Float> {
@@ -283,6 +289,7 @@ class PreferencesManager(
         private const val KEY_NOTIFY_LIST_REMOVED = "notify_list_removed"
         private const val KEY_NOTIFY_LIST_CONTENT_UPDATED = "notify_list_content_updated"
         private const val KEY_LAST_LIST_NOTIFY_CHECK_TS = "last_list_notify_check_ts"
+        private const val KEY_HAS_PROMPTED_NOTIFICATIONS = "has_prompted_notifications"
         private const val COLUMN_WIDTHS_PREFIX = "column_widths_" // + listId
         private const val COLUMN_ALIGN_PREFIX = "column_align_" // + listId
         private const val DEFAULT_SERVER_URL = "http://10.0.2.2:3000/api/"

CollabTableAndroid/app/src/main/java/com/collabtable/app/ui/screens/ListsScreen.kt

@@ -119,6 +119,7 @@ fun ListsScreen(
                     var notifPrompted by remember { mutableStateOf(false) }
                     val permissionLauncher =
                         rememberLauncherForActivityResult(ActivityResultContracts.RequestPermission()) { granted ->
+                            prefsLocal.setHasPromptedNotifications(true)
                             // Mirror setup behavior: toggle all list notifications to granted state
                             prefsLocal.setNotifyListAddedEnabled(granted)
                             prefsLocal.setNotifyListEditedEnabled(granted)
@@ -132,7 +133,7 @@ fun ListsScreen(
                     ConnectionStatusAction(
                         prefs = prefsLocal,
                         onBecameConnected = {
-                            if (Build.VERSION.SDK_INT >= 33 && !notifPrompted) {
+                            if (Build.VERSION.SDK_INT >= 33 && !notifPrompted && !prefsLocal.hasPromptedNotifications()) {
                                 val granted =
                                     ContextCompat.checkSelfPermission(
                                         context,

CollabTableAndroid/app/src/main/java/com/collabtable/app/ui/screens/ServerSetupScreen.kt

@@ -68,6 +68,7 @@ fun ServerSetupScreen(onSetupComplete: () -> Unit) {
     fun finishOnce() {
         if (!completed) {
             completed = true
+            preferencesManager.setHasPromptedNotifications(true)
             onSetupComplete()
         }
     }