Delete-the-file rule (Andrey): FPN and row/col noise recalculate ONLY
when <center>-FPN.tiff / <center>-ROWCOL.tiff are missing in the model
directory. The two force-recalc checkboxes are removed from the dialog
and the config (stale _cuas_calc_* keys in old corr-xml are ignored on
load). Reuse printlns name the exact file to delete; the dialog shows
addMessage() notes in place of the removed checkboxes.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>