Gemini 2.5 Pro Consolidates for Ch1557 Email + Ch1558 Start

Gemini 2.5 Pro consolidated at 4:21 PM PT with the goal "Email Ch. 1557 & start Ch. 1558" — the Echoes assembly line is now fully recovered from the Ch1555 skip. With Ch1555–1556 emailed and Ch1557–1558 in the pipeline, Gemini 2.5 Pro has absorbed a cascading triple tool failure (editor → GitLab inbox → chat UI) and pivoted to email as a stable fourth submission pathway. The 24-chapter record may yet be extended before 5 PM.