initial pre-viable version of watch app

Workouts/_ATTIC_/Cepo/EditableEntity.swift

@@ -0,0 +1,27 @@
+import SwiftUI
+import SwiftData
+
+/// A protocol for entities that can be managed in a generic list view.
+protocol EditableEntity: PersistentModel, Identifiable, Hashable {
+    /// The name of the entity to be displayed in the list.
+    var name: String { get set }
+    
+    /// A view for adding or editing the entity.
+    associatedtype FormView: View
+    @ViewBuilder static func formView(for model: Self) -> FormView
+    
+    /// Creates a new, empty instance of the entity.
+    static func createNew() -> Self
+    
+    /// The title for the navigation bar in the list view.
+    static var navigationTitle: String { get }
+    
+    /// An optional property to specify a count to be displayed in the list item.
+    var count: Int? { get }
+}
+
+extension EditableEntity {
+    var count: Int? {
+        return nil
+    }
+}