v0.1.1

A moved payload shape is no longer reported as an empty listing. A
page the endpoint served, whose own total says it holds rows, and from
which no row could be read, used to end the run as exit 4 ("the listing
has nothing in it"). It is now exit 5 on page 1 and exit 6 on a later
page, with stop_reason: parser_found_nothing. Measured by renaming the
row container in a real P2P capture that still counted 187 adverts.

Changed

• The sidecar carries core_field_shortfall: for each page, the core
  columns filled on fewer than 99% of its rows. {} on a healthy run. A
  renamed field used to write a complete-looking file with the column null
  on every row and one warning in the log; the daily canary now fails on it.
• The canary names a moved shape on exit 5 and 6.
• CI tests Python 3.9 and 3.14 (was 3.9 and 3.12). 3.9 stays as the floor.
• The AWS WAF token cookie is set on the domain the challenge page lists in
  awsWafCookieDomainList, or on the page's own host when it lists none,
  rather than always on the registrable domain.
• engine-smoke checks that the engine imports, rather than grepping the
  suite's output for a phrase it never printed.