Orin power options: one confirmation that chooses power off or reboot

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DDwfd6Ki8UfG4hK6W5YpJz

lib/main.dart

@@ -262,9 +262,9 @@ class LinkBar extends StatelessWidget {
               ),
               if (b.state == LinkState.up && b.hello?['boot_id'] is String)
                 TextButton.icon(
-                  onPressed: () => shutDownOrin(context, b),
+                  onPressed: () => orinPowerOptions(context, b),
                   icon: const Icon(Icons.power_settings_new),
-                  label: const Text('Shut down Orin'),
+                  label: const Text('Orin power options'),
                 ),
             ],
           ),
@@ -276,33 +276,42 @@ class LinkBar extends StatelessWidget {
 
 /// Confirm, then send `poweroff` once (contracts BOUNDARY.md): it carries this
 /// connection's boot id, so it can never take effect on a later boot.
-Future<void> shutDownOrin(BuildContext context, Boundary b) async {
+/// Power off or reboot the Orin: one confirmation that is also the choice. Sent once,
+/// never resent (contracts BOUNDARY.md: the ack cache does not survive the restart).
+Future<void> orinPowerOptions(BuildContext context, Boundary b) async {
   final host = b.hello?['host'] ?? 'the Orin';
-  final yes = await showDialog<bool>(
+  final verb = await showDialog<String>(
     context: context,
     builder: (context) => AlertDialog(
-      title: Text('Shut down $host?'),
+      title: Text('Power options: $host'),
       content: const Text(
-        'Recording stops and the session is closed cleanly. '
+        'Either way, recording stops and the session is closed cleanly.\n\n'
-        'The Orin stays off until its power button is pressed.',
+        'Power off: the Orin stays off until its power button is pressed.\n'
+        'Reboot: it is back in about a minute; this screen reconnects by itself.',
       ),
       actions: [
         TextButton(
-          onPressed: () => Navigator.of(context).pop(false),
+          onPressed: () => Navigator.of(context).pop(),
           child: const Text('Cancel'),
         ),
-        FilledButton(
+        OutlinedButton.icon(
+          onPressed: () => Navigator.of(context).pop('reboot'),
+          icon: const Icon(Icons.restart_alt),
+          label: const Text('Reboot'),
+        ),
+        FilledButton.icon(
           style: FilledButton.styleFrom(backgroundColor: Colors.red.shade700),
-          onPressed: () => Navigator.of(context).pop(true),
+          onPressed: () => Navigator.of(context).pop('poweroff'),
-          child: const Text('Shut down'),
+          icon: const Icon(Icons.power_settings_new),
+          label: const Text('Power off'),
         ),
       ],
     ),
   );
-  if (yes != true || !context.mounted) return;
+  if (verb == null || !context.mounted) return;
   final messenger = ScaffoldMessenger.of(context);
-  final id = b.commandOnce('poweroff', {
+  final id = b.commandOnce(verb, {
-    'confirm': 'poweroff',
+    'confirm': verb,
     'boot_id': b.hello?['boot_id'],
   });
   if (id == null) {
@@ -312,11 +321,12 @@ Future<void> shutDownOrin(BuildContext context, Boundary b) async {
     return;
   }
   final ack = await b.ackFor(id);
+  final what = verb == 'reboot' ? 'rebooting' : 'shutting down';
   messenger.showSnackBar(
     SnackBar(
       content: Text(
         ack == null
-            ? 'No reply: the Orin may or may not be shutting down'
+            ? 'No reply: the Orin may or may not be $what'
             : ack.ok
             ? 'Orin: ${ack.detail}'
             : 'Refused: ${ack.detail}',