feat: grab sensor firmware version for detail sheet

lib/data/repositories/phoenix_sensor_repository.dart

@@ -52,6 +52,9 @@ class PhoenixSensorRepository implements SensorRepository {
   Future<Sensor> unplaceSensor(int id) async =>
       Sensor.fromJson(await client.unplaceSensor(id));
 
+  @override
+  Future<String?> getVersion(int id) => client.getVersion(id);
+
   @override
   Stream<Map<String, dynamic>> sensorEvents() => realtime
       .channelMessages('sensors')

lib/data/repositories/sensor_repository.dart

@@ -11,6 +11,8 @@ abstract class SensorRepository {
       {required int roomId, required double x, required double y});
   Future<Sensor> unplaceSensor(int id);
 
+  Future<String?> getVersion(int id);
+
   /// Stream of raw SensorsChannel messages. Each map contains an `event` key
   /// (`sensor_announced` or `sensor_enrollment_timeout`) plus the payload.
   Stream<Map<String, dynamic>> sensorEvents();

lib/data/sources/localiser/sensor_client.dart

@@ -13,30 +13,46 @@ class SensorClient extends LocaliserdClient {
       await get('/api/sensors/$id') as Map<String, dynamic>;
 
   Future<Map<String, dynamic>> updateSensor(
-          int id, Map<String, dynamic> params) async =>
-      await put('/api/sensors/$id', params) as Map<String, dynamic>;
+    int id,
+    Map<String, dynamic> params,
+  ) async => await put('/api/sensors/$id', params) as Map<String, dynamic>;
 
   Future<void> deleteSensor(int id) => delete('/api/sensors/$id');
 
   Future<Map<String, dynamic>> placeSensor(
-          int id, Map<String, dynamic> params) async =>
+    int id,
+    Map<String, dynamic> params,
+  ) async =>
       await put('/api/sensors/$id/place', params) as Map<String, dynamic>;
 
   Future<Map<String, dynamic>> unplaceSensor(int id) async =>
       await deleteBody('/api/sensors/$id/place') as Map<String, dynamic>;
 
-  Future<Map<String, dynamic>> createSensor(String sensorId,
-          {String? name}) async =>
+  Future<Map<String, dynamic>> createSensor(
+    String sensorId, {
+    String? name,
+  }) async =>
       await post('/api/sensors', {
-        'sensor_id': sensorId,
-        if (name != null) 'name': name,
-      }) as Map<String, dynamic>;
+            'sensor_id': sensorId,
+            if (name != null) 'name': name,
+          })
+          as Map<String, dynamic>;
 
   Future<Map<String, dynamic>> startCalibration(
-          int id, double referenceDistance) async =>
-      await post('/api/sensors/$id/calibration/start',
-          {'reference_distance': referenceDistance}) as Map<String, dynamic>;
+    int id,
+    double referenceDistance,
+  ) async =>
+      await post('/api/sensors/$id/calibration/start', {
+            'reference_distance': referenceDistance,
+          })
+          as Map<String, dynamic>;
 
   Future<Map<String, dynamic>> stopCalibration(int id) async =>
       await post('/api/sensors/$id/calibration/stop') as Map<String, dynamic>;
+
+  Future<String> getVersion(int id) async {
+    final response =
+        (await get('/api/sensors/$id/version') as Map<String, dynamic>);
+    return response['version']!;
+  }
 }