Storefront Brief issue 4: Apple published Creative Assets rules — 4+ ceiling, fall launch with iOS 27

English issue: On 2026-08-05 Apple published App Store Creative Assets best practices ahead of a fall launch with iOS 27 — product page headers, search results slots, and Asset Library submission. Storefront-facing assets must meet a 4+ rating even when the app is higher. Connect keyword analytics (impressions, conversion, retention) live since 2026-07-01. Not a fee change. Operator intel, not…