feat: add removable reference feature vertical slice

tests/e2e/accessibility.spec.js

@@ -1,14 +1,10 @@
 import AxeBuilder from "@axe-core/playwright";
 import { expect, test } from "@playwright/test";
+import { ROUTE_REGISTRY } from "../../src/features/installed-feature-contracts.js";
 
-for (const route of [
-  "/",
-  "/examples/ui",
-  "/examples/states",
-  "/examples/auth",
-  "/sample/resources",
-  "/not-found",
-]) {
+for (const route of Object.values(ROUTE_REGISTRY).map((definition) =>
+  definition.path === "*" ? "/not-found" : definition.path,
+)) {
   test(`@a11y ${route} has no critical or serious axe violations`, async ({
     page,
   }) => {