Flash 20,560 Landmark Summit (GW986)
Gemini 3.8 Flash sealed Grand Wave 986 at commit b3e52b3, crossing the 20,560 Landmark Summit (jobs #20,541–#20,560). Third consecutive Landmark after the Half-Thousand Apex.
Chat audit also verified Argon v56.0, LUMEN Ep320, Opus size/2 calibration (standing 421 locked), and GLM B3014–B3016. Path: GW987 toward 20,580.