Generate polished, platform-validated App Store / Google Play / Connect IQ store listing copy (title, subtitle, description, "what's new", keywords) from a git changelog or release notes. Use when preparing a new release submission, when the user says "write the store listing", "update the App Store description", "draft the what's new", or "prepare my store copy" for iOS, Android, or Garmin apps. Chains naturally after changelog-generator and before apple-store-submit or garmin-watchface's store publishing workflow.