fix: resolve import sorting error in test_multi_modal_embeddings.py

- Fixed I001 import order violation by sorting transformers imports alphabetically
- sentence_transformers now comes before transformers

Iteration: 1/5
Error: I001 Import block is un-sorted or un-formatted
Job: PR Quality Gate

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: MementoRC

tests/unit/atoms/test_multi_modal_embeddings.py

@@ -5,8 +5,8 @@
 
 # Check if ML dependencies are available
 try:
-    import transformers
     import sentence_transformers
+    import transformers
     ML_DEPENDENCIES_AVAILABLE = True
 except ImportError:
     ML_DEPENDENCIES_AVAILABLE = False