For years, smart glasses have existed in a kind of technological purgatory — impressive in demos, awkward in practice, and perpetually one killer feature away from mainstream relevance. Alibaba may have just found that feature, or rather, a bundle of them. A major software update to Alibaba's Qianwen AI-powered glasses has quietly turned the wearable into something far more compelling than a heads-up notification display. The update integrates a suite of practical, everyday s