Axiom Swiftui Debugging Diag

When you've already tried the standard SwiftUI debugging checklist and your view still won't update, this is the second-level diagnostic. It sits between the primary debugging skill and a full architecture audit, handling the cases where state is wired correctly on paper but something subtle is breaking reactivity. Think identity collisions, observation scope bugs, or structural view problems that only show up under specific conditions. The skill tree positions this as the "still broken after debugging" escape hatch, which is honest. It won't prevent most issues, but when you're 90 minutes into a state update mystery, having a structured escalation path beats random StackOverflow searches.