[CI][ROCm] Add and stabilize HunyuanImage3 nightly coverage (#7934)

Signed-off-by: haic0 <149741444+haic0@users.noreply.github.com>
Signed-off-by: akshatvishu <akshatnayak197@gmail.com>
Signed-off-by: andyluo7 <andy.luo@amd.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: akshatvishu <akshatnayak197@gmail.com>
Co-authored-by: andyluo7 <andy.luo@amd.com>

vllm_omni/platforms/rocm/patch/worker/patch_groupnorm.py

@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM-Omni project
 
 """Patch ``initialize_model`` to replace VAE GroupNorm with AITER GroupNorm on ROCm."""
 
@@ -42,6 +43,13 @@ def _patched_initialize_model(od_config):
     model = _original_initialize_model(od_config)
 
     if hasattr(model, "vae"):
+        # AITER GroupNorm does not preserve the PyTorch autocast behavior required
+        # by Hunyuan Image 3.0. Keep PyTorch GroupNorm until the fix is released:
+        # https://github.com/ROCm/aiter/issues/4780
+        # https://github.com/ROCm/aiter/pull/4779
+        if od_config.model_class_name == "HunyuanImage3ForCausalMM":
+            return model
+
         try:
             from vllm._aiter_ops import is_aiter_found_and_supported