2026-08-31 — itd-185 folds invisible and compatibility-equivalent runes

2026-08-31 — itd-185 folds invisible and compatibility-equivalent runes (Unicode spaces, Cf + Other_Default_Ignorable_Code_Point + Variation_Selector, NFKC) before signature matching and before every blankness rule, and DISCLOSES the script-confusable class as open. Ground: the registry's own phrasing with a byte substituted is an evasion of the gate, not the calibration residue; a confusables table is a new dependency and the maintainer's call. Rejected: filing the invisible-rune class under the disclosed residue.