build-number

Chunk-mining round 2: 21 rules + the missing ŧ-correction entries Second mining pass over the rotated failure residue (134 never-offered + 204 ranked 6+), same collateral discipline as round 1: every left side checked against the 9,076 attested forms, rewrites of correct forms checked against the acceptor. All 21 rules measure zero true collateral. Families: distorted Norwegian -sjon loans (átio/áksio/áves), loan haplology (dabbo/hansá/anial/perme), the -vdn- cluster written short (uvna/ádni), truncated place-name generics word-finally (jár->jávrri, joht->johka), dropped Slavic -sk in exonyms, and word-final abbreviation repairs (fn->lf, Ra->R). Separately, an editdist asymmetry the mining surfaced: t->ŧ and u->ŧ existed at 30, but no entry corrected a TYPED ŧ back, so a one-letter ŧ-for-t slip fell to the generic substitution at 59 (rank 8 for roavvarávddiŧ). Added ŧ->t and ŧ->u at 30. A/B on the gold set: +13 top-1 / +25 top-5 / +12 offered (9129 / 10362 / 10553; top-5 97.07%); the independent hand-tagged eval improves as well (+10 top-1 / +6 top-5). Zero false accepts. The mining also concluded: no chunk families with 2+ support remain in the deep tail — the residue is now one-off proper nouns (44), distance-4+ one-offs (68), ED3-reachable cases (51), and plain ranking losses (122). The chunk vein is mined out.