* fix: stop iOS focus-zoom and casual pinch-zoom on mobile
* fix: scope mobile 16px rule to editable controls, document zoom tradeoff
* fix: keep code-block language picker compact on touch devices
* test: pin viewport assertion to exact maximum-scale token
* fix: keep code-block language select under mobile 16px zoom floor
* fix: apply mobile 16px zoom floor on hybrid touch devices via any-pointer
* fix: drop maximum-scale=1 viewport lock (no-op on iOS, fails a11y audit)
José Almeida
c93ced5129