ci: tag-gated nightly migration — foundation + 40 whole-file moves (#24725)

Co-authored-by: hnyls2002 <lsyincs@gmail.com>
Co-authored-by: Liangsheng Yin <hnyls2002@gmail.com>

test/registered/sessions/test_session_latency.py

@@ -31,11 +31,7 @@ from sglang.test.test_utils import (
     popen_launch_server,
 )
 
-register_cuda_ci(
-    est_time=122,
-    stage="stage-b",
-    runner_config="1-gpu-large",
-)
+register_cuda_ci(est_time=122, stage="extra-a", runner_config="1-gpu-large")
 
 NUM_TURNS = 150
 INPUT_LEN = 16