fix: resolve TypeScript errors in frontend build

node_modules/@tiptap/extensions/dist/selection/index.d.cts

@@ -0,0 +1,17 @@
+import { Extension } from '@tiptap/core';
+
+type SelectionOptions = {
+    /**
+     * The class name that should be added to the selected text.
+     * @default 'selection'
+     * @example 'is-selected'
+     */
+    className: string;
+};
+/**
+ * This extension allows you to add a class to the selected text.
+ * @see https://www.tiptap.dev/api/extensions/selection
+ */
+declare const Selection: Extension<SelectionOptions, any>;
+
+export { Selection, type SelectionOptions };