Explicitly import Buffer. Specify jsdoc local extensions

src/middleware/basicAuth.js

@@ -2,6 +2,7 @@
  * When applied, this middleware will ensure the request contains the required header for basic authentication and only
  * allow access to the endpoint after successful authentication.
  */
+import { Buffer } from 'node:buffer';
 import storage from 'node-persist';
 import { getAllUserHandles, toKey, getPasswordHash } from '../users.js';
 import { getConfig, getConfigValue } from '../util.js';

src/middleware/multerMonkeyPatch.js

@@ -1,3 +1,5 @@
+import { Buffer } from 'node:buffer';
+
 /**
  * Decodes a file name from Latin1 to UTF-8.
  * @param {string} str Input string