fix: harden agent snapshot restore flow

main/manager-mobile/src/i18n/en.ts

@@ -130,6 +130,7 @@ export default {
   'agent.saving': 'Saving...',
   'agent.saveSuccess': 'Save successful',
   'agent.saveFail': 'Save failed',
+  'agent.ttsOptionsLoadFailed': 'Voice options could not be loaded. The previous voice settings were kept.',
   'agent.loadFail': 'Load failed',
   'agent.pleaseInputAgentName': 'Please input agent name',
   'agent.pleaseInputRoleDescription': 'Please input role description',
@@ -161,7 +162,7 @@ export default {
   'agentSnapshot.detailTitle': 'Change Details',
   'agentSnapshot.restorePreviewTitle': 'Restore Preview',
   'agentSnapshot.confirmRestore': 'Confirm Restore',
-  'agentSnapshot.currentVersion': 'Current Version',
+  'agentSnapshot.currentVersion': 'Latest Snapshot',
   'agentSnapshot.beforeChange': 'Before',
   'agentSnapshot.afterChange': 'After',
   'agentSnapshot.beforeRestore': 'Before Restore',
@@ -169,11 +170,22 @@ export default {
   'agentSnapshot.configValue': 'Config Value',
   'agentSnapshot.emptyValue': 'None',
   'agentSnapshot.secretRedacted': 'Secret hidden',
+  'agentSnapshot.redactedValueChanged': 'The value is hidden, but it did change',
   'agentSnapshot.noChangedContent': 'No displayable changes',
-  'agentSnapshot.restoreConfirm': 'Restore to version #{version}? The current config will be saved as a new version first.',
+  'agentSnapshot.recordedChange': 'Changed when recorded',
+  'agentSnapshot.noRestoreNeeded': 'The current configuration already matches this version',
+  'agentSnapshot.unsavedChangesTitle': 'Unsaved changes',
+  'agentSnapshot.unsavedChangesWarning': 'Continuing will discard the unsaved changes on this page.',
+  'agentSnapshot.discardAndRestore': 'Discard and restore',
+  'agentSnapshot.restoreConfirm': 'Restore to version #{version}? The current configuration will remain available in history.',
   'agentSnapshot.restoreMemoryWarning': 'Restoring to a no-memory version will clear this agent\'s chat history. Please confirm the risk.',
+  'agentSnapshot.restoreChatHistoryDestructiveWarning': 'This restore will permanently delete this agent\'s existing chat history. Chat history is not included in configuration snapshots and cannot be recovered from version history.',
   'agentSnapshot.restoreSuccess': 'Version restored',
   'agentSnapshot.restoreFailed': 'Failed to restore version',
+  'agentSnapshot.reloadAfterRestorePending': 'Reloading the restored configuration and tags. Saving is disabled until this completes.',
+  'agentSnapshot.reloadAfterRestoreFailed': 'The restored configuration or tags could not be reloaded. Saving remains disabled to prevent stale data from overwriting the restore. Please retry.',
+  'agentSnapshot.retryReload': 'Reload',
+  'agentSnapshot.mutationBusy': 'The configuration is being saved or reloaded. Wait for it to finish before opening version history or restoring.',
   'agentSnapshot.deleteConfirm': 'Delete version #{version}? This cannot be undone.',
   'agentSnapshot.deleteSuccess': 'Version deleted',
   'agentSnapshot.deleteFailed': 'Failed to delete version',
@@ -182,7 +194,7 @@ export default {
   'agentSnapshot.correctWordCount': '{count} replacement words',
   'agentSnapshot.source.config': 'Config Save',
   'agentSnapshot.source.current': 'Current Config',
-  'agentSnapshot.source.restore': 'Before Restore',
+  'agentSnapshot.source.restore': 'Restored',
   'agentSnapshot.source.initial': 'Initial Version',
   'agentSnapshot.field.initial': 'Initial Snapshot',
   'agentSnapshot.field.agentCode': 'Agent Code',