[Model] Support NVIDIA-NemotronLabs-VoiceChat-11B offline speech-to-speech (#5842)

Signed-off-by: Yuekai Zhang <zhangyuekai@foxmail.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

tests/core/sched/test_omni_scheduling_coordinator.py

@@ -120,6 +120,9 @@ class TestFullPayloadCoordinatorSelection(unittest.TestCase):
             ("MiMoAudioModel", "code2wav"),
             ("Qwen3TTSCode2Wav", "code2wav"),
             ("MiniCPMO45Code2Wav", "code2wav"),
+            # nemotron_voicechat: sync-path RVQ-VAE decode waits for the
+            # talker's full [frames, 31] code-stack payload.
+            ("NemotronVoiceChatCode2Wav", "code2wav"),
             ("CosyVoice3Model", "cosyvoice3_code2wav"),
             # audex: sync-path TTS decoder (async_chunk: false deploys) and
             # the TTA XCodec1 stage (always sync full-payload).