Add nightly test support to unified run_suite.py (#13941)

test/nightly/test_cpp_radix_cache.py

@@ -3,6 +3,7 @@ from types import SimpleNamespace
 
 from sglang.srt.environ import envs
 from sglang.srt.utils import kill_process_tree
+from sglang.test.ci.ci_register import register_cuda_ci
 from sglang.test.run_eval import run_eval
 from sglang.test.test_utils import (
     DEFAULT_MODEL_NAME_FOR_TEST,
@@ -12,6 +13,8 @@ from sglang.test.test_utils import (
     popen_launch_server,
 )
 
+register_cuda_ci(est_time=60, suite="nightly-1-gpu", nightly=True)
+
 
 class TestCppRadixCache(CustomTestCase):
     @classmethod