Twelve more full-feature languages bring the total to 32

1. Plan 100 batch 3 promotes ar, id, fa, he, bg, sr, hr, sk, sl, lt, lv, and et from the degraded path to full feature. Enumeration was data-driven: every language present in both the dictionaries manifest and the models registry that lacked a module, ranked by speakers. ko and ne rank higher by speakers but need Hangul jamo and Devanagari tokenizers outside this batch.
2. Six national keyboard grids (Arabic 101, Persian ISIRI 9147, Hebrew SI-1452, Bulgarian BDS, Serbian Cyrillic, Croatian/Slovenian QWERTZ) plus five parameterized Latin family members. AVAILABLE_LANGUAGES grows 20 to 32. A real bug fixed on the way: the script-aware word regex never reached the ar/fa/he tokenizers, so Kotoshu.check extracted zero words from RTL documents — those tokenizers now declare their script sets (fa includes ZWNJ).
3. Forty-nine specimen pairs engine-verified across the twelve languages, plus RTL sentence round trips. Suite 3,887 examples, 0 failures.

see also Language matrix · gem PR #151