Show Snackbar on hoseline tap

lib/views/hose_view.dart

@@ -201,6 +201,15 @@ class _HoseViewState extends State<HoseView> {
     );
   }
 
+  void _showNotImplementedSnackbar() {
+    ScaffoldMessenger.of(context).showSnackBar(
+      const SnackBar(
+        content: Text('Listening to live QSOs has not been implemented yet'),
+        duration: Duration(seconds: 2),
+      ),
+    );
+  }
+
   Widget _buildHoseCard(HoseItem item) {
     final now = DateTime.now();
     final timeSinceActivity = now.difference(item.lastActivity);
@@ -214,7 +223,9 @@ class _HoseViewState extends State<HoseView> {
       timeAgo = '${timeSinceActivity.inHours}h ago';
     }
 
-    return Card(
+    return GestureDetector(
+      onTap: _showNotImplementedSnackbar,
+      child: Card(
       elevation: item.isActive ? 4 : 1,
       shape: RoundedRectangleBorder(
         borderRadius: BorderRadius.circular(12),
@@ -309,6 +320,7 @@ class _HoseViewState extends State<HoseView> {
           ],
         ),
       ),
+    ),
     );
   }
 }