revert: restore matplotlib for GradCAM colormap - better visualization quality

perf: aggressive build optimizations - remove albumentations, use plain uvicorn, multi-stage docker build

perf: major build optimizations - remove matplotlib, fix duplicate endpoint, optimize dependencies

Update inference.py

fixes to model building in huggingface

changes to gradcam

major fixes in app.py and inference.py accordingly for path issue

changes to load_model

fixes to paths

adding first commit