* fix(producer): a taken file-server port fails the render, and the late grading test runs in its lane
* test(producer): run the taken-port file-server test under Node, where listen errors are events
* test(producer): every *.integration.test.ts must sit in the integration lane
* fix(producer): drop the explanatory comment on the file-server error handler
* ci: select the remaining orphan tests in their owning runners
* ci: provide FFmpeg for the catalog preview witness
* ci: pass the installed Chrome path to catalog rendering
* test: align creator capability checks with speed ramp support
#4153 added supported speed ramps as rate lanes in data-automation. The
previously unselected capability tests still required preprocessing.
Require the documented rate-lane representation and its precedence over
the constant playback rate, matching the runtime resolver.
Miguel Ángel