Fix PyTorch 2.9+ TF32 API deprecation warning
Author: Fathi7ma
Pull request: yes
Labels: name: Code agent slop

- Update training_args.py to use new PyTorch 2.9+ API with backward compatibility
- Update conftest.py CI configuration for new TF32 API
- Update modular_model_detector.py to use new API
- Update documentation in English, Japanese, and Korean with version-aware examples
- Supports both PyTorch < 2.9.0 (old API) and >= 2.9.0 (new API)
- Fixes vllm#29349 - MoE models can now load on Turing architecture

New API: torch.backends.cuda.matmul.fp32_precision = 'tf32'
Old API: torch.backends.cuda.matmul.allow_tf32 = True (deprecated)

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Fixes # (issue)


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