stitch-ui-design-spec-uviewpro

uView Pro (uni-app/Vue 3) design spec for Stitch screen generation. Use when the user mentions uview-pro, uviewpro, or uview 3.0 in a Stitch design request. Outputs a hard-constraints prefix with uView Pro tokens (Primary #3c9cff, rpx units, u-button/u-form/u-navbar components, script setup) or a CONTRACT_SELECTION_JSON_V1 selector.