Use key-only DeMemWM pose geometry

Fix DeMemWM memory dropout and inference stabilization

Update DeMemWM validation metrics and launchers

Add DeMemWM optimizer LR groups and warmup

Document DeMemWM noise routes

Simplify DeMemWM memory noise modes

Add DeMemWM trainability controls

Add DeMemWM memory noise routing

Add DeMemWM step 1-4 dataset scaffold

update evaluation and fix psnr

update trainning pipeline and datasets