App Store submission: iOS App Store listing, screenshots, review preparation

[CodeCreatorManMike]

Final step for public availability on iOS.

• App Store Connect listing: name, description, keywords, category
• Screenshots for all required device sizes (6.9in, 6.5in, 5.5in)
• App Privacy disclosure (HealthKit, push notifications, camera if Phase 3)
• TestFlight beta before public submission
• Review guidelines: HealthKit apps have specific review criteria