fix imports

apps/server/src/integrations/import/utils/import-formatter.ts

@@ -99,6 +99,15 @@ export function defaultHtmlFormatter($: CheerioAPI, $root: Cheerio<any>) {
   });
 }
 
+const COLUMN_LAYOUTS = [
+  '',
+  '',
+  'two_equal',
+  'three_equal',
+  'four_equal',
+  'five_equal',
+] as const;
+
 export function notionFormatter($: CheerioAPI, $root: Cheerio<any>) {
   // remove page header icon and cover image
   $root.find('.page-header-icon').remove();
@@ -109,6 +118,31 @@ export function notionFormatter($: CheerioAPI, $root: Cheerio<any>) {
     if (!$(el).text().trim()) $(el).remove();
   });
 
+  // columns
+  $root.find('div.column-list').each((_, el) => {
+    const $list = $(el);
+    const $cols = $list.find('div.column');
+
+    if ($cols.length <= 1) {
+      $list.replaceWith($cols.html() || '');
+      return;
+    }
+
+    const layout = COLUMN_LAYOUTS[$cols.length] ?? 'two_equal';
+    let cells = '';
+    $cols.each((_, col) => {
+      const $col = $(col);
+      $col.children('div[style*="display:contents"]').each((_, wrapper) => {
+        $(wrapper).replaceWith($(wrapper).html() || '');
+      });
+      cells += `<div data-type="column">${$col.html()}</div>`;
+    });
+
+    $list.replaceWith(
+      `<div data-type="columns" data-layout="${layout}">${cells}</div>`,
+    );
+  });
+
   // block math → mathBlock
   $root.find('figure.equation').each((_: any, fig: any) => {
     const $fig = $(fig);