fix: retain translated reboot summary in cached health responses

AppImage/scripts/kernel_reboot.py

@@ -108,7 +108,12 @@ def refresh_health_reboot(snapshot):
         if status in issues:
             label = key.replace('_', ' ').capitalize()
             reason = block.get('reason')
-            issues[status].append(f'{label}: {reason}' if reason else label)
+            if key == 'updates' and not reason:
+                # Reuse the existing localized reboot detail contract rather
+                # than introducing an untranslated, context-free "Updates".
+                issues[status].append(block['checks']['reboot_required']['detail'])
+            else:
+                issues[status].append(f'{label}: {reason}' if reason else label)
     result['overall'] = ('CRITICAL' if issues['CRITICAL'] else 'WARNING'
                          if issues['WARNING'] or issues['UNKNOWN'] else 'OK')
     primary = next((values for values in issues.values() if values), [])

tests/test_reboot_health_refresh.py

@@ -63,6 +63,7 @@ class FullHealth(unittest.TestCase):
         self.assertTrue(result['health']['details']['updates']['reboot_required'])
         self.assertEqual(result['health']['details']['updates']['count'], 0)
         self.assertEqual(result['health']['timestamp'], 'original')
+        self.assertEqual(result['health']['summary'], 'Reboot required: running 7.0.14-25-pve; installed 7.0.14-26-pve')
         self.assertEqual(self.cached, before)
         self.owner.get_detailed_status.assert_not_called()
         self.assertEqual(self.probe.call_count, 1)