【8/6 3時】Google AI部門トップ交代（LEAD）・Cloudflare OS・Mistral Shieldstral

8月6日 3時のAI速報をお届けします。

▼ トピック
1. Google AI部門トップ交代（LEAD）
https://www.reuters.com/business/google-shakes-up-ai-leadership-deepmind-chief-shifts-role-2026-08-05/
2. Cloudflare OS
https://siliconangle.com/2026/08/05/cloudflare-launches-cloudflare-os-open-source-ai-agentic-workspace-enterprise/
3. Mistral Shieldstral
https://siliconangle.com/2026/08/05/mistral-introduces-shieldstral-provide-lightweight-policy-aware-moderation-ai-models/
4. ケニア証券取引所 AI特化ETF
https://www.reuters.com/world/africa/kenyas-stock-exchange-plans-east-africas-first-ai-focused-etf-2026-08-05/
5. 米空軍 X-62 AI自律インターセプト試験
https://defensescoop.com/2026/08/05/air-force-x-62-vista-have-heat-have-holiday/