Refactor app.py and download_qwen_image_models.py for improved model handling

Add edit model version handling and filename generation

Refactor app.py to update prefix/suffix naming conventions for metadata creation and enhance UI with new training hyperparameter inputs. Modify train_QIE.sh to utilize dynamic hyperparameter values for training execution, improving configurability and user experience.

Update app.py to remove outdated startup instructions from the UI, enhance train_QIE.sh to dynamically set cache_directory, and modify requirements.txt to specify a custom index URL for torchvision installation.

Add Torch version check in train_QIE.sh to log availability and version information, enhancing debugging and environment validation.

Implement initial project structure and setup