SwiftData: Model Container fails completely when CloudKit storage is full

struct ModelContainerSetup {

static let shared = ModelContainerSetup()

private static let containerIdentifier = "iCloud.Journal"

func setupModelContainer() -> ModelContainer {
    let schema = Schema([User.self])
    let modelConfiguration = ModelConfiguration(
        schema: schema,
        isStoredInMemoryOnly: false,
        cloudKitDatabase: .private(Self.containerIdentifier)
    )
   
    do {
        return try ModelContainer(for: schema, configurations: [modelConfiguration])
    } catch {
        fatalError("Could not create ModelContainer: \(error)")
    }
}

**Expected Behavior: ** When CloudKit storage is full, the app should continue functioning with local storage Data should persist locally even if cloud sync fails Sync should resume when storage becomes available

**Actual Behavior: ** ModelContainer initialization fails completely Local data also stops getting saved

**Environment: ** iOS 17.0+ SwiftData Private CloudKit database

Ideal Behaviour: When iCloud fails, the data should still be saved locally. I do not want to have two different containers so that I can maintain data consistency.