Add FolderTrustDialog that shows on launch and enables folderTrust setting (#5815)

packages/cli/src/ui/components/FolderTrustDialog.tsx

@@ -0,0 +1,70 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { Box, Text, useInput } from 'ink';
+import React from 'react';
+import { Colors } from '../colors.js';
+import {
+  RadioButtonSelect,
+  RadioSelectItem,
+} from './shared/RadioButtonSelect.js';
+
+export enum FolderTrustChoice {
+  TRUST_FOLDER = 'trust_folder',
+  TRUST_PARENT = 'trust_parent',
+  DO_NOT_TRUST = 'do_not_trust',
+}
+
+interface FolderTrustDialogProps {
+  onSelect: (choice: FolderTrustChoice) => void;
+}
+
+export const FolderTrustDialog: React.FC<FolderTrustDialogProps> = ({
+  onSelect,
+}) => {
+  useInput((_, key) => {
+    if (key.escape) {
+      onSelect(FolderTrustChoice.DO_NOT_TRUST);
+    }
+  });
+
+  const options: Array<RadioSelectItem<FolderTrustChoice>> = [
+    {
+      label: 'Trust folder',
+      value: FolderTrustChoice.TRUST_FOLDER,
+    },
+    {
+      label: 'Trust parent folder',
+      value: FolderTrustChoice.TRUST_PARENT,
+    },
+    {
+      label: "Don't trust (esc)",
+      value: FolderTrustChoice.DO_NOT_TRUST,
+    },
+  ];
+
+  return (
+    <Box
+      flexDirection="column"
+      borderStyle="round"
+      borderColor={Colors.AccentYellow}
+      padding={1}
+      width="100%"
+      marginLeft={1}
+    >
+      <Box flexDirection="column" marginBottom={1}>
+        <Text bold>Do you trust this folder?</Text>
+        <Text>
+          Trusting a folder allows Gemini to execute commands it suggests. This
+          is a security feature to prevent accidental execution in untrusted
+          directories.
+        </Text>
+      </Box>
+
+      <RadioButtonSelect items={options} onSelect={onSelect} isFocused />
+    </Box>
+  );
+};