[Diffusion] [Model] Dreamid omni (#1855)

Signed-off-by: dengyunyang <584797741@qq.com>

vllm_omni/diffusion/models/interface.py

@@ -13,6 +13,11 @@ class SupportImageInput(Protocol):
     color_format: ClassVar[str] = "RGB"  # Default color format
 
 
+@runtime_checkable
+class SupportAudioInput(Protocol):
+    support_audio_input: ClassVar[bool] = True
+
+
 @runtime_checkable
 class SupportAudioOutput(Protocol):
     support_audio_output: ClassVar[bool] = True