Missing the last row when it appears on next page

while reading it with flavor=lattice, it was missing to capture the last row if it comes on the next page.

Start by reproducing the missing-last-row behavior in Camelot when reading a PDF with flavor=lattice and the row appears on the next page. The issue names no files or tests, so locate the lattice extraction entry point and existing pagination tests first. Done means the final row is captured across pages without breaking other lattice extraction cases.

Written by the indexing model from the issue text.