feat: enhance document schema and update attachment handling

- Added attachments support to ZCreateDocumentMutationSchema and ZUpdateDocumentRequestSchema.
- Updated ZDocumentSchema to validate attachments with specific fields.
- Modified updateDocument function to handle attachment creation and deletion.
- Enhanced AddSettingsFormSchema to include attachments with proper validation.

packages/ui/primitives/document-flow/add-settings.tsx

@@ -147,6 +147,8 @@ export const AddSettingsFormPartial = ({
       formId: nanoid(12),
       label: '',
       url: '',
+      // fix this
+      id: '',
     });
   };