Add current test name per worker to CTRL monitor line
Track which test each gw worker is running via pytest_runtest_logreport
(report.workerid, available in xdist controller). Each CTRL line now shows
e.g. gw2 PSS=2314MB [test_run_wav2vec2_pretraining] so memory spikes are
immediately correlated with the running test without manual log cross-referencing.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
