[Model] Migrate MammothModa2 DiT to the shared diffusion runtime (#7134)

Signed-off-by: levius <2114377220@qq.com>
Signed-off-by: Yueqian Lin <linyueqian@outlook.com>
Co-authored-by: amy-why-3459 <wuhaiyan17@huawei.com>
Co-authored-by: Yueqian Lin <linyueqian@outlook.com>

tests/model_tests/diffusion/test_alignment.py

@@ -28,6 +28,9 @@ EXCLUDED_MODELS = [
     "GlmImagePipeline",
     "ZImagePipeline",
     "OvisImagePipeline",
+    # Requires upstream AR hidden states and token boundaries; covered by
+    # dedicated MammothModa2 bridge/pipeline tests and real-checkpoint E2E.
+    "MammothModa2DiTPipeline",
     "WanPipeline",
     "WanDMDPipeline",
     "WanVACEPipeline",