feat(chat): Add overwrite confirmation dialog to /chat save (#5686)

Co-authored-by: Jacob Richman <jacob314@gmail.com>

packages/cli/src/ui/App.tsx

@@ -39,6 +39,7 @@ import { AuthInProgress } from './components/AuthInProgress.js';
 import { EditorSettingsDialog } from './components/EditorSettingsDialog.js';
 import { FolderTrustDialog } from './components/FolderTrustDialog.js';
 import { ShellConfirmationDialog } from './components/ShellConfirmationDialog.js';
+import { RadioButtonSelect } from './components/shared/RadioButtonSelect.js';
 import { Colors } from './colors.js';
 import { loadHierarchicalGeminiMemory } from '../config/config.js';
 import { LoadedSettings, SettingScope } from '../config/settings.js';
@@ -488,6 +489,7 @@ const App = ({ config, settings, startupWarnings = [], version }: AppProps) => {
     pendingHistoryItems: pendingSlashCommandHistoryItems,
     commandContext,
     shellConfirmationRequest,
+    confirmationRequest,
   } = useSlashCommandProcessor(
     config,
     settings,
@@ -912,6 +914,21 @@ const App = ({ config, settings, startupWarnings = [], version }: AppProps) => {
             <FolderTrustDialog onSelect={handleFolderTrustSelect} />
           ) : shellConfirmationRequest ? (
             <ShellConfirmationDialog request={shellConfirmationRequest} />
+          ) : confirmationRequest ? (
+            <Box flexDirection="column">
+              {confirmationRequest.prompt}
+              <Box paddingY={1}>
+                <RadioButtonSelect
+                  items={[
+                    { label: 'Yes', value: true },
+                    { label: 'No', value: false },
+                  ]}
+                  onSelect={(value: boolean) => {
+                    confirmationRequest.onConfirm(value);
+                  }}
+                />
+              </Box>
+            </Box>
           ) : isThemeDialogOpen ? (
             <Box flexDirection="column">
               {themeError && (