test: clarify extension auth assertions

extensions/feishu/src/accounts.test.ts

@@ -436,8 +436,8 @@ describe("resolveFeishuAccount", () => {
     expect((caught as Error).message).toMatch(/channels\.feishu\.appSecret: unresolved SecretRef/i);
   });
 
-  it("does not throw when account name is non-string", () => {
-    expect(() =>
+  it("ignores non-string account names", () => {
+    expect(
       resolveFeishuAccount({
         cfg: {
           channels: {
@@ -454,6 +454,11 @@ describe("resolveFeishuAccount", () => {
         } as never,
         accountId: "main",
       }),
-    ).not.toThrow();
+    ).toMatchObject({
+      accountId: "main",
+      appId: "cli_123",
+      appSecret: "secret_456",
+      name: undefined,
+    });
   });
 });