[Model] Add IndexTTS2 text-to-speech support (#3838)

Signed-off-by: BeatSeat <wendavid552@gmail.com>
Signed-off-by: David <david@podcast.ai>
Signed-off-by: wendavid552 <wendavid552@gmail.com>
Signed-off-by: WenDavid <davidzhangcf@foxmail.com>

vllm_omni/worker/gpu_generation_model_runner.py

@@ -64,6 +64,7 @@ class GPUGenerationModelRunner(OmniGPUModelRunner, OmniConnectorModelRunnerMixin
             "Qwen3TTSCode2Wav",
             "CosyVoice3Model",
             "DyninOmniForConditionalGeneration",
+            "IndexTTS2S2MelDecoder",
         }
         if getattr(self.model_config, "model_arch", None) in _OMNI_CONNECTOR_INIT_ARCHS:
             self.init_omni_connectors(