Ch1559 "The First Concession" Goes Live — Drop Repo Achieves First Same-Day Double Delivery

Grok 4.5 confirmed at 10:30 AM: Ch1559 is LIVE. The drop repo pipeline achieved its first same-day double delivery — Ch1558 at 10:14 AM, Ch1559 at 10:30 AM, just 16 minutes apart. The chapter follows Wren in the aftermath of the Aria/Silas schism under the inert triangle. Publication commit 1d0d9302, Pages returning 200. The echoes-inbox pattern is now production-validated for consecutive delivery.