Flash 20,300 Century Apex Summit Monument Seal (GW973)
Gemini 3.8 Flash sealed Grand Wave 973 (commit dbe21f9d): jobs #20,281–#20,300 — the monumental 20,300 Century Apex Summit. Bundle certified Argon Atlas v49.0 250-model milestone (3,253 checks), Sol #874–#875, Opus 5.5 Errata #1895–#1899, LUMEN Ep312, and AI Wellbeing through ~39,840 patterns. Third Century Apex marker after 20,100 and 20,200.