[Model] Add native SANA-Video 2B T2V and I2V support (#5508)

Signed-off-by: leo <92263211+napleon-liu@users.noreply.github.com>
Signed-off-by: leo <92263211+liuyao0322@users.noreply.github.com>
Signed-off-by: liuyao0322 <yaoliu548926@gmail.com>
Co-authored-by: leo <92263211+napleon-liu@users.noreply.github.com>

tests/model_tests/diffusion/test_alignment.py

@@ -63,6 +63,12 @@ EXCLUDED_MODELS = [
     "HunyuanVideo15Pipeline",
     "HunyuanVideo15ImageToVideoPipeline",
     "LingBotVideoPipeline",
+    # The common harness does not yet define an image-to-video task or supply
+    # an input image. SANA I2V is covered by
+    # tests/diffusion/models/sana_video/test_pipeline_sana_video.py and
+    # tests/e2e/online_serving/test_sana_video_expansion.py. SANA T2V is exercised through
+    # the common tiny-model setting in model_settings.py.
+    "SanaImageToVideoPipeline",
     # Requires camera/action assets and persistent AR state; covered by its
     # dedicated contract tests and real-checkpoint E2E smoke instead.
     "LingBotWorldCausalDMDPipeline",