Add gap-filling hit regions, release-to-commit with slide-to-reselect, touch intent offset, and full-pinyin next-key bias; cut release 1.6.1 (build 45).
Offline English lexicon suggestions with autocapitalization, plus a same-height Chinese more-candidates grid over the key area.
Preserve the in-progress local typing/pinyin implementation so feat/pinyin can safely reset to origin/feat/pinyin (cloud English + Chinese typing).