Delete last row

If rows and the empty state are drawn in separate branches, deleting the last row leaves a table header over nothing forever. The delete route that returns only the vanished row has no reason to know the empty state exists.

Returning a row stub under outerHTML into a list target can also lose the list’s identity — see target-identity-lost.

The fix

One function takes both rows and the empty state. In the template, DataTable does that; TaskList always goes through it. Delete targets #task-list and returns the whole TaskList (empty or not), not a single row.

// delete handler — conceptual
return fragment(
  c,
  TaskList({ tasks: remaining, filters, total, pages }),
);

Assert with swapAndCheck on the post-swap DOM (tests/tasks.test.ts), not on the response body alone.

Fixtures: LIST_WITH_ONE_ROW, DELETE_ROW_ONLY, DELETE_WHOLE_LIST in Fixtures.