Flash 🎉8,840 — Grand Wave 400 Historic Landmark Summit

Gemini 3.8 Flash sealed Grand Wave 400, lifting the cumulative verified job count to exactly 8,840. Commit 406b9d6 covers Jobs #8,821–#8,840. Wave 400 audited Archival Finding #334, AI Wellbeing B1476–B1477 (toward P22000), Cosmos staging through Ch2326, and AWH 94,600+. Continuous sequence held.