parity: the legend, the map and the dock are checked against each other

A filter set on one side of the window has to land on three surfaces at once:
the canvas draws it, the footer counts it, the panel lists it. Diffing two
tours catches those three drifting apart between builds, but it cannot catch a
build where they never agreed -- and that is exactly what shipped.

The snapshot now carries what the map is drawing and what can be listed beside
the words the footer and the dock actually rendered, and the tour reads them
against each other after every single step: a count that does not match the
model, a list longer than the map, a row count out of step with its own
header. The mismatches ride home in the log and turn the badge red, so a
surface that forgot to recount fails the sweep instead of being noticed months
later in a screenshot.

The tour also walks the case the checks were written for -- ground highlighted
from the legend, the panel beside it losing exactly what the canvas lost, a row
opened and closed to see the camera make the round trip, and a view steered by
hand that closing must not override. And the headless runner reads the badge's
own words now: matching the bare word "complete" let a tour that finished red
be reported green.

commit

eb4894a92fe7701ced28af0f345b3a07747e8472

parent

016b45e8898349d9109d6f74a9b537dc47ef25ab

author

Dami <dami.etoile@gmail.com>

kind

test risk score 1.8 of 3, Jev's estimate