feat: display room name in sensor detail sheet

lib/features/sensors/sensor_detail_sheet.dart

@@ -52,7 +52,7 @@ class _SensorDetailSheetState extends ConsumerState<SensorDetailSheet> {
       context: context,
       builder: (ctx) => AlertDialog(
         title: const Text('Delete sensor?'),
-        content: const Text('This will unenrol the sensor from the system.'),
+        content: const Text('This will unenroll the sensor from the system.'),
         actions: [
           TextButton(
             onPressed: () => Navigator.of(ctx).pop(false),
@@ -88,6 +88,7 @@ class _SensorDetailSheetState extends ConsumerState<SensorDetailSheet> {
   @override
   Widget build(BuildContext context) {
     final sensorAsync = ref.watch(sensorProvider(widget.sensorId));
+    final roomsAsync = ref.watch(roomsProvider);
 
     return sensorAsync.when(
       loading: () => const SizedBox(
@@ -102,8 +103,16 @@ class _SensorDetailSheetState extends ConsumerState<SensorDetailSheet> {
         // Keep controller in sync when not actively editing.
         if (!_editing) _nameCtrl.text = sensor.name ?? '';
 
+        final roomName = roomsAsync.whenOrNull(
+          data: (rooms) => rooms
+              .where((r) => r.id == sensor.roomId)
+              .firstOrNull
+              ?.name,
+        );
+
         return _SheetBody(
           sensor: sensor,
+          roomName: roomName,
           editing: _editing,
           nameCtrl: _nameCtrl,
           onEditToggle: () => setState(() {
@@ -122,6 +131,7 @@ class _SensorDetailSheetState extends ConsumerState<SensorDetailSheet> {
 class _SheetBody extends StatelessWidget {
   const _SheetBody({
     required this.sensor,
+    required this.roomName,
     required this.editing,
     required this.nameCtrl,
     required this.onEditToggle,
@@ -131,6 +141,7 @@ class _SheetBody extends StatelessWidget {
   });
 
   final Sensor sensor;
+  final String? roomName;
   final bool editing;
   final TextEditingController nameCtrl;
   final VoidCallback onEditToggle;
@@ -192,6 +203,7 @@ class _SheetBody extends StatelessWidget {
             ),
             const SizedBox(height: 16),
             _InfoRow(label: 'Device ID', value: sensor.sensorId),
+            _InfoRow(label: 'Room', value: roomName ?? '—'),
             _InfoRow(
               label: 'Position',
               value: sensor.isPlaced