fix: resolve TypeScript errors in frontend build

node_modules/@tiptap/extension-document/src/document.ts

@@ -0,0 +1,19 @@
+import { Node } from '@tiptap/core'
+
+/**
+ * The default document node which represents the top level node of the editor.
+ * @see https://tiptap.dev/api/nodes/document
+ */
+export const Document = Node.create({
+  name: 'doc',
+  topNode: true,
+  content: 'block+',
+
+  renderMarkdown: (node, h) => {
+    if (!node.content) {
+      return ''
+    }
+
+    return h.renderChildren(node.content, '\n\n')
+  },
+})

node_modules/@tiptap/extension-document/src/index.ts

@@ -0,0 +1,5 @@
+import { Document } from './document.js'
+
+export * from './document.js'
+
+export default Document