Daily News #2026-02-21

Apple researchers develop on-device AI agent that interacts with apps for you 2026春节红包大战：AI“春秋五霸”的差异化战略与行业转向 AI情感陪伴产品的破局之道：引入“关系导演”解决用户迷茫 Claude 智能体团队从零构建 C 编译器的实验与反思 AI 多智能体量化交易系统 AIQuantAgent Announcing Swift System Metrics 1.0: Process-Level Monitoring PhoneNumberKit