migrate to "export default"

also, set no-use-before-define in linter

src/passkeys.js

@@ -1,8 +1,8 @@
 import assert from 'node:assert';
 import BoxError from './boxerror.js';
 import crypto from 'node:crypto';
-import * as dashboard from './dashboard.js';
-import * as database from './database.js';
+import dashboard from './dashboard.js';
+import database from './database.js';
 import debugModule from 'debug';
 import safe from 'safetydance';
 import {
@@ -11,25 +11,10 @@ import {
     generateAuthenticationOptions as generateWebAuthnAuthenticationOptions,
     verifyAuthenticationResponse
 } from '@simplewebauthn/server';
-import * as _ from './underscore.js';
+import _ from './underscore.js';
 
 const debug = debugModule('box:passkeys');
 
-export {
-    list,
-    get,
-    getByCredentialId,
-    add,
-    del,
-    updateCounter,
-
-    generateRegistrationOptions,
-    verifyRegistration,
-    generateAuthenticationOptions,
-    verifyAuthentication,
-
-    removePrivateFields
-};
 
 const PASSKEY_FIELDS = [ 'id', 'userId', 'credentialId', 'publicKey', 'counter', 'transports', 'name', 'creationTime', 'lastUsedTime' ].join(',');
 
@@ -314,3 +299,19 @@ async function verifyAuthentication(user, response) {
 
     return { verified: true, passkeyId: passkey.id };
 }
+
+export default {
+    list,
+    get,
+    getByCredentialId,
+    add,
+    del,
+    updateCounter,
+
+    generateRegistrationOptions,
+    verifyRegistration,
+    generateAuthenticationOptions,
+    verifyAuthentication,
+
+    removePrivateFields
+};