Strict systematic review per Cochrane v6.5 + PRISMA 2020 + AMSTAR 2: PROSPERO/OSF protocol, PRISMA-S search, dual-blind screening + Cohen's kappa, RoB 2 / ROBINS-I, GRADE, AMSTAR 2. Use when user requests "systematic review", "系统综述", "系统性文献综述", "循证综述（含 RoB/GRADE 等环节）", "PRISMA review", "Cochrane-sty
Strict systematic review per Cochrane v6.5 + PRISMA 2020 + AMSTAR 2: PROSPERO/OSF protocol, PRISMA-S search, dual-blind screening + Cohen's kappa, RoB 2 / ROBINS-I, GRADE, AMSTAR 2. Use when user requests "systematic review", "系统综述", "系统性文献综述", "循证综述（含 RoB/GRADE 等环节）", "PRISMA review", "Cochrane-style review". Trigger when user explicitly requires PRISMA 2020 / Cochrane / RoB / GRADE / AMSTAR 2, O