wifi connection established by app, process socket binding, primary os connection untouched

app/lib/services/database/app_settings_repository.dart

@@ -22,6 +22,7 @@ class AppSettingsRepository {
         ConnectionType connectionType,
         String? connectionWifiHost,
         int connectionWifiPort,
+        String connectionWifiSsidPrefix,
       })> load() async {
     final row = await (_db.select(_db.appSettingsTable)
           ..where((s) => s.id.equals(_rowId)))
@@ -37,6 +38,8 @@ class AppSettingsRepository {
       ),
       connectionWifiHost: row?.connectionWifiHost,
       connectionWifiPort: row?.connectionWifiPort ?? kDefaultWifiPort,
+      connectionWifiSsidPrefix:
+          row?.connectionWifiSsidPrefix ?? kDefaultWifiSsidPrefix,
     );
   }
 
@@ -104,6 +107,18 @@ class AppSettingsRepository {
     ));
   }
 
+  /// SSID-Praefix fuer den app-initiierten WLAN-Verbindungsaufbau (Doku
+  /// Kommunikationsschicht v2 Abschnitt 4/8), Standard "mLRS-".
+  Future<String> loadConnectionWifiSsidPrefix() async =>
+      (await load()).connectionWifiSsidPrefix;
+
+  Future<void> setConnectionWifiSsidPrefix(String prefix) async {
+    await _upsert(AppSettingsTableCompanion(
+      id: const Value(_rowId),
+      connectionWifiSsidPrefix: Value(prefix),
+    ));
+  }
+
   Future<void> _upsert(AppSettingsTableCompanion companion) async {
     await _db.into(_db.appSettingsTable).insertOnConflictUpdate(companion);
   }