Add set box brush name command and update scene document migration

src/commands/set-box-brush-name-command.ts

@@ -0,0 +1,46 @@
+import { createOpaqueId } from "../core/ids";
+import { normalizeBrushName } from "../document/brushes";
+
+import { getBoxBrushOrThrow, replaceBrush } from "./brush-command-helpers";
+import type { EditorCommand } from "./command";
+
+interface SetBoxBrushNameCommandOptions {
+  brushId: string;
+  name: string | null;
+}
+
+export function createSetBoxBrushNameCommand(options: SetBoxBrushNameCommandOptions): EditorCommand {
+  const normalizedName = normalizeBrushName(options.name);
+  let previousName: string | undefined;
+
+  return {
+    id: createOpaqueId("command"),
+    label: normalizedName === undefined ? "Clear box brush name" : `Rename box brush to ${normalizedName}`,
+    execute(context) {
+      const currentDocument = context.getDocument();
+      const brush = getBoxBrushOrThrow(currentDocument, options.brushId);
+
+      if (previousName === undefined) {
+        previousName = brush.name;
+      }
+
+      context.setDocument(
+        replaceBrush(currentDocument, {
+          ...brush,
+          name: normalizedName
+        })
+      );
+    },
+    undo(context) {
+      const currentDocument = context.getDocument();
+      const brush = getBoxBrushOrThrow(currentDocument, options.brushId);
+
+      context.setDocument(
+        replaceBrush(currentDocument, {
+          ...brush,
+          name: previousName
+        })
+      );
+    }
+  };
+}