Google Stitch update: AI design assistant supports end-to-end building

Google Stitch更新：AI设计助手实现全流程构建

Google updated its AI design partner Stitch with real-time streaming design builds, direct edits and feedback, codebase or Design.md imports, dynamic UI generation, shareable URL exports, and global availability.

Why it matters: HKR-H/K/R pass: Google Stitch adds streaming builds, codebase/Design.md import, and global access. It stays at the featured threshold because model details, pricing, and measured output quality are not disclosed.