fix(mobile): confirm host revoke and keep the model on refetch failure

apps/mobile/src/components/tool-summary-translation-settings-screen.tsx

@@ -45,7 +45,14 @@ export function ToolSummaryTranslationSettingsScreen() {
   // failed state through the refetch leaves the block in place and lets the
   // Retry button show the busy state until the request settles. Same contract
   // as `use-current-user-id`.
-  const catalogueError = isError || (isLoading && isFetched);
+  //
+  // Only a catalogue with nothing to fall back on is an error: a failed
+  // background refetch (remount after `staleTime`, or reconnect) still holds
+  // the populated cache, so the stored model and the loaded catalogue keep
+  // working. Blanking the row to `—` and disabling the picker there would drop
+  // a working selection, which the voice-input sibling never does (it treats a
+  // failed refetch as `error` only while `models` is empty).
+  const catalogueError = (isError || (isLoading && isFetched)) && models.length === 0;
 
   // Only a live catalogue can open the picker; while off, loading, failed, or
   // empty there is nothing to pick (retry lives in the state below).

apps/mobile/src/components/trusted-hosts-screen.tsx

@@ -1,6 +1,6 @@
 import { useRouter } from 'expo-router';
 import { useTranslation } from 'react-i18next';
-import { Pressable, View } from 'react-native';
+import { Alert, Pressable, View } from 'react-native';
 
 import { EmptyState } from '@/components/empty-state';
 import { ScreenHeader } from '@/components/screen-header';
@@ -18,6 +18,22 @@ export function TrustedHostsScreen() {
   const colors = useThemeColors();
   const { trustedHosts, hasLoaded } = useTrustedHosts();
 
+  // Revoking is destructive and one tap away on a single row, so it confirms
+  // first, the way the passkey and device-session removal rows do
+  // (apps/mobile/AGENTS.md).
+  const confirmRevoke = (host: string) => {
+    Alert.alert(t('trustedHosts.revoke', { host }), t('trustedHosts.revokeMessage'), [
+      { text: t('common.cancel'), style: 'cancel' },
+      {
+        text: t('organization.members.revokeConfirm'),
+        style: 'destructive',
+        onPress: () => {
+          revokeHost(host);
+        },
+      },
+    ]);
+  };
+
   return (
     <View className="flex-1 bg-background">
       <ScreenHeader title={t('trustedHosts.title')} />
@@ -67,7 +83,7 @@ export function TrustedHostsScreen() {
                   </Text>
                   <Pressable
                     onPress={() => {
-                      revokeHost(host);
+                      confirmRevoke(host);
                     }}
                     hitSlop={8}
                     accessibilityRole="button"

apps/mobile/src/i18n/locales/en.json

@@ -2724,6 +2724,7 @@
     "emptyTitle": "No trusted hosts",
     "emptyDescription": "When you trust a link's host, it opens without asking again.",
     "revoke": "Revoke {{host}}",
+    "revokeMessage": "Links to this host will ask for confirmation again.",
     "backToPreferences": "Back to preferences"
   },
   "forceUpdate": {