fix: Add a fallback definition for `is_torch_fx_available` in `transformers.utils.import_utils`.

feat: Add LlamaFlashAttention2 compatibility alias and eager attention implementation for model loading.

fix: Address MPS compatibility issues, ensure explicit model dtype, and improve Gradio file input handling.

Implement warning suppression, ensure pad token ID for generation, enable deterministic sampling, refine Gradio UI CSS and clear functionality, and add `.env` to .gitignore."

Initial commit: DeepSeek-OCR-2 & MedGemma-1.5 multimodal analysis app with ZeroGPU support