A page is a document: drop the sticky chrome and the bounded-frame opt-out

src/ui/data-table.test.ts

@@ -42,9 +42,6 @@ test("data-table renders sortable headers, row-select, typed cells, badges and k
   const html = flat(await render(config));
 
   assert.match(html, /<div class="table-wrap"><table class="table"><caption class="sr-only">People in the directory<\/caption>/);
-  // Opt-in, and only then: the class is what a filled page hands its leftover height to.
-  assert.match(flat(await render({ ...config, scrollRegion: true })), /<div class="table-wrap scroll-region">/);
-
   // Row-select: header select-all + per-row checkbox with a descriptive label.
   assert.match(html, /<th class="col-check" scope="col"><input type="checkbox" aria-label="Select all rows"><\/th>/);
   assert.match(html, /<td class="col-check"><input type="checkbox" class="row-select" aria-label="Select Mara Delgado"><\/td>/);