chore: satisfy changed-file policy

Scoped pre-commit over the 27 files this rebase touches: ruff format
reflow, the vLLM-Omni SPDX copyright line on the new modules, and wording
the typos hook rejected.

The Python 3.10 mypy hook still reports 24 errors across five of these
files. All 24 sit on pre-existing lines; none fall on a line this rebase
changed, which the repository documents as the CI-skipped condition.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0146Xu5Sgj4vXxLxvLjV5YPj
Signed-off-by: tzhouam <tzhouam@connect.ust.hk>

tests/diffusion/models/dreamzero/test_qkv_fusion.py

@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: Apache-2.0
-# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM-Omni project
 
 """Equivalence test for DreamZero self-attn QKV fusion.
 

tests/diffusion/models/glm_image/test_glm_image_quantization.py

@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: Apache-2.0
-# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM-Omni project
 """Unit tests for GLM-Image quantization support (W4A16/AutoRound).
 
 These tests verify that the GLM-Image DiT transformer correctly accepts and uses

tests/diffusion/models/mistral_encoder/test_mistral_encoder_tp.py

@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: Apache-2.0
-# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM-Omni project
 from types import SimpleNamespace
 
 import pytest

tests/diffusion/models/sana_video/test_transformer_sana_video.py

@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: Apache-2.0
-# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM-Omni project
 
 import os
 

tests/diffusion/models/sana_video/test_transformer_sana_video_tp.py

@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: Apache-2.0
-# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM-Omni project
 
 """TP unit tests for SANA-Video: distributed RMSNorm, sharded attention and
 sharded GLUMB temporal conv.

tests/diffusion/models/t5_encoder/test_t5_encoder_tp.py

@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: Apache-2.0
-# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM-Omni project
 import pytest
 import torch
 from transformers import T5Config