feat(editor): Add routing middleware, permission checks, RBAC store, RBAC component (#7702)

Github issue / Community forum post (link here to close automatically):

---------

Co-authored-by: Csaba Tuncsik <csaba@n8n.io>

packages/editor-ui/src/rbac/middleware/role.ts

@@ -0,0 +1,16 @@
+import type { RouterMiddleware } from '@/types/router';
+import type { RolePermissionOptions } from '@/types/rbac';
+import { VIEWS } from '@/constants';
+import { hasRole } from '@/rbac/checks';
+
+export const roleMiddleware: RouterMiddleware<RolePermissionOptions> = async (
+	to,
+	from,
+	next,
+	checkRoles,
+) => {
+	const valid = hasRole(checkRoles);
+	if (!valid) {
+		return next({ name: VIEWS.HOMEPAGE });
+	}
+};