修正 OALAUNCH1 登录与业务流回归（05-28-oalaunch1-parallel-closeout）

client/tests/e2e/r89-mobile-login-navigation.spec.ts

@@ -134,6 +134,15 @@ async function mockR89Apis(page: Page) {
       return;
     }
 
+    if (path === "/api/auth/capabilities") {
+      await fulfillJson(route, {
+        emailDelivery: { ready: true, statusReasons: [] },
+        emailLoginCode: { enabled: true },
+        passwordReset: { enabled: true },
+      });
+      return;
+    }
+
     if (path === "/api/auth/sso/providers") {
       await fulfillJson(route, []);
       return;