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 =>
+    int id,
-      await put('/api/sensors/$id', params) as Map<String, dynamic>;
+    Map<String, dynamic> params,
+  ) async => await put('/api/sensors/$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,
+  Future<Map<String, dynamic>> createSensor(
-          {String? name}) async =>
+    String sensorId, {
+    String? name,
+  }) async =>
       await post('/api/sensors', {
             'sensor_id': sensorId,
             if (name != null) 'name': name,
-      }) as Map<String, dynamic>;
+          })
+          as Map<String, dynamic>;
 
   Future<Map<String, dynamic>> startCalibration(
-          int id, double referenceDistance) async =>
+    int id,
-      await post('/api/sensors/$id/calibration/start',
+    double referenceDistance,
-          {'reference_distance': referenceDistance}) as Map<String, dynamic>;
+  ) async =>
+      await post('/api/sensors/$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']!;
+  }
 }

lib/domain/models/sensor.dart

@@ -7,6 +7,7 @@ class Sensor {
     this.roomId,
     this.x,
     this.y,
+    this.version,
   });
 
   final int id;
@@ -16,6 +17,7 @@ class Sensor {
   final int? roomId;
   final double? x;       // room relative
   final double? y;       // room relative
+  final String? version;
 
   bool get isPlaced => roomId != null && x != null && y != null;
   String get displayName => name ?? sensorId;
@@ -28,6 +30,7 @@ class Sensor {
         roomId: json['room_id'] as int?,
         x: (json['x'] as num?)?.toDouble(),
         y: (json['y'] as num?)?.toDouble(),
+        version: json['version'] as String?,
       );
 
   Sensor copyWith({
@@ -35,7 +38,7 @@ class Sensor {
     int? roomId,
     double? x,
     double? y,
-    double? rssiRef,
+    String? version,
   }) =>
       Sensor(
         id: id,
@@ -45,5 +48,6 @@ class Sensor {
         roomId: roomId ?? this.roomId,
         x: x ?? this.x,
         y: y ?? this.y,
+        version: version ?? this.version,
       );
 }

lib/features/sensors/sensor_detail_sheet.dart

@@ -89,6 +89,7 @@ class _SensorDetailSheetState extends ConsumerState<SensorDetailSheet> {
   Widget build(BuildContext context) {
     final sensorAsync = ref.watch(sensorProvider(widget.sensorId));
     final roomsAsync = ref.watch(roomsProvider);
+    final versionAsync = ref.watch(sensorVersionProvider(widget.sensorId));
 
     return sensorAsync.when(
       loading: () => const SizedBox(
@@ -110,9 +111,12 @@ class _SensorDetailSheetState extends ConsumerState<SensorDetailSheet> {
               ?.name,
         );
 
+        final version = versionAsync.whenOrNull(data: (v) => v);
+
         return _SheetBody(
           sensor: sensor,
           roomName: roomName,
+          version: version,
           editing: _editing,
           nameCtrl: _nameCtrl,
           onEditToggle: () => setState(() {
@@ -132,6 +136,7 @@ class _SheetBody extends StatelessWidget {
   const _SheetBody({
     required this.sensor,
     required this.roomName,
+    required this.version,
     required this.editing,
     required this.nameCtrl,
     required this.onEditToggle,
@@ -142,6 +147,7 @@ class _SheetBody extends StatelessWidget {
 
   final Sensor sensor;
   final String? roomName;
+  final String? version;
   final bool editing;
   final TextEditingController nameCtrl;
   final VoidCallback onEditToggle;
@@ -210,6 +216,7 @@ class _SheetBody extends StatelessWidget {
                   ? '(${sensor.x!.toStringAsFixed(2)}, ${sensor.y!.toStringAsFixed(2)})'
                   : 'Not placed',
             ),
+            _InfoRow(label: 'Firmware', value: version ?? '—'),
             const SizedBox(height: 24),
             FilledButton.icon(
               icon: Icon(Icons.my_location),

lib/providers.dart

@@ -145,6 +145,11 @@ final sensorProvider =
   return ref.watch(sensorRepositoryProvider).getSensor(id);
 });
 
+final sensorVersionProvider =
+    FutureProvider.autoDispose.family<String?, int>((ref, id) {
+  return ref.watch(sensorRepositoryProvider).getVersion(id);
+});
+
 // ---------------------------------------------------------------------------
 // Tag data
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