feat: add core domain model foundations

commands/command.ts

@@ -0,0 +1,11 @@
+import type { ImageDocument } from "@core/document";
+
+export type CommandContext = {
+  document: ImageDocument;
+};
+
+export type Command<TPayload = void> = {
+  id: string;
+  name: string;
+  execute(context: CommandContext, payload: TPayload): ImageDocument;
+};

commands/index.ts

@@ -0,0 +1 @@
+export type { Command, CommandContext } from "./command";