feat: add tag picker in sensor calibration flow

lib/data/repositories/phoenix_sensor_repository.dart

@@ -80,6 +80,12 @@ class PhoenixSensorRepository implements SensorRepository {
     );
   }
 
+  @override
+  Future<int> setCalibrationTag(int id, String tagId) async {
+    final json = await client.setCalibrationTag(id, tagId);
+    return json['samples_needed'] as int;
+  }
+
   @override
   Future<void> cancelCalibration(int id) => client.cancelCalibration(id);