Storage Pattern Rules Default: In-Memory with Sample Data Unless the user explicitly requests persistence (words like "save", "persist", "database", "storage", "SwiftData"), use in-memory data with rich dummy data : | Data Type | Storage | API | |-----------|---------|-----| | App data (notes, tasks, items) | In-memory (DEFAULT) | Plain , arrays | | Simple flags and settings (sort order, preferred units) | UserDefaults | | | Transient UI state (sheet shown, selected tab) | In-memory | | In-Memory Models (Default) Models are plain structs with a static array: In-Memory ViewModel (Default) View…