Interface UndoableCommand

undo-manager.ts — Command-pattern undo/redo system.

Every undoable user action becomes an UndoableCommand with execute() and undo(). Commands are pushed onto a history stack. Cmd+Z pops and calls undo(). Cmd+Shift+Z re-pushes and calls execute().

interface UndoableCommand {
    label: string;
    execute(): Promise<void>;
    undo(): Promise<void>;
}