Add tests for box brush commands, E2E, geometry, and update scene document serialization test

tests/e2e/box-brush-authoring.e2e.ts

@@ -0,0 +1,35 @@
+import { expect, test } from "@playwright/test";
+
+test("user can create a box brush and keep it through a draft reload", async ({ page }) => {
+  const pageErrors: string[] = [];
+  const consoleErrors: string[] = [];
+
+  page.on("pageerror", (error) => {
+    pageErrors.push(error.message);
+  });
+
+  page.on("console", (message) => {
+    if (message.type() === "error") {
+      consoleErrors.push(message.text());
+    }
+  });
+
+  await page.goto("/");
+  await page.evaluate((storageKey) => {
+    window.localStorage.removeItem(storageKey);
+  }, "webeditor3d.scene-document-draft");
+  await page.reload();
+
+  await page.getByTestId("create-box-brush").click();
+  await expect(page.getByText("Box Brush 1")).toBeVisible();
+  await expect(page.getByText("1 brush selected (Box Brush 1)")).toBeVisible();
+
+  await page.getByRole("button", { name: "Save Draft" }).click();
+  await page.reload();
+
+  await expect(page.getByText("Box Brush 1")).toBeVisible();
+  await expect(page.getByText("1 box brushes loaded. Click a brush in the viewport or outliner to select it.")).toBeVisible();
+
+  expect(pageErrors).toEqual([]);
+  expect(consoleErrors).toEqual([]);
+});