Automated monthly photo-to-Mixtiles pipeline. Collects photos from a WhatsApp group, curates the best ones using vision, builds a multi-photo Mixtiles cart link, and sends it. Use when it's time for the monthly Mixtiles order, when asked to "run the monthly tiles", "collect family photos for tiles", or on the monthly cron trigger.

自动化月度照片转Mixtiles流程。从WhatsApp群组收集照片，利用视觉技术精选最佳图片，生成多图Mixtiles购物车链接并发送。适用于每月Mixtiles下单时、收到“运行月度拼贴”“收集家庭照片用于拼贴”指令或每月定时任务触发时使用。