Pin Seekpath and expose fallback diagnostics

Keep Seekpath paths in the input cell basis

Harden UppASD input parsing

Fix dressed exchange real-space aliasing

Add UppASD vector mapping modes

Support direct posfile coordinates

Refine exchange plot labels and induced terminology

IMX-09 align exchange and response conventions with UppASD

docs: prepare public documentation

Prepare induced exchange explorer for Hugging Face

IMX-08 validate induced exchange physics and conventions

IMX-06 add exchange-dressing comparison diagnostics

IMX-01 add UppASD input model and parsers