test(AGC): 去掉 findBy 查询后多余的 not.toBeNull 断言

- findBy* 在超时后会直接抛错，末尾的 .not.toBeNull() 永远看不到 null
- 充值弹窗用例内的 dialog / 「可用总额」断言改为直接 await，保持意图清晰

apps/ai-game-creator-shell/tests/appSurface/home.suite.ts

@@ -1019,18 +1019,14 @@ export function registerClientHomeTests() {
     renderLauncherAt('/?launcher');
     fireEvent.click(screen.getByRole('button', { name: '会员与泥点' }));
 
-    expect(
-      await screen.findByRole('dialog', { name: '会员与泥点' }),
-    ).not.toBeNull();
-    expect(await screen.findByText('可用总额 120 泥点')).not.toBeNull();
+    await screen.findByRole('dialog', { name: '会员与泥点' });
+    await screen.findByText('可用总额 120 泥点');
     fireEvent.click(screen.getByRole('button', { name: '关闭会员与泥点' }));
 
     fireEvent.click(screen.getByRole('button', { name: '我的' }));
     fireEvent.click(screen.getByRole('button', { name: '充值泥点' }));
 
-    expect(
-      await screen.findByRole('dialog', { name: '会员与泥点' }),
-    ).not.toBeNull();
+    await screen.findByRole('dialog', { name: '会员与泥点' });
     expect(invoke).toHaveBeenCalledWith(
       'read_profile_recharge_center',
       undefined,
@@ -1043,9 +1039,7 @@ export function registerClientHomeTests() {
     fireEvent.click(
       within(checkoutDialog).getByRole('button', { name: '充值 ¥6' }),
     );
-    expect(
-      await screen.findByRole('dialog', { name: '微信扫码支付' }),
-    ).not.toBeNull();
+    await screen.findByRole('dialog', { name: '微信扫码支付' });
     expect(invoke).toHaveBeenCalledWith('create_profile_recharge_order', {
       productId: 'points_60',
     });
@@ -1053,7 +1047,7 @@ export function registerClientHomeTests() {
     await waitFor(() => {
       expect(screen.queryByRole('dialog', { name: '微信扫码支付' })).toBeNull();
     });
-    expect(await screen.findByText('可用总额 180 泥点')).not.toBeNull();
+    await screen.findByText('可用总额 180 泥点');
 
     fireEvent.click(screen.getByRole('button', { name: '充值 ¥6' }));
     const secondCheckoutDialog = await screen.findByRole('dialog', {
@@ -1070,9 +1064,7 @@ export function registerClientHomeTests() {
       releaseLateRechargeOrder?.();
     });
     fireEvent.click(screen.getByRole('button', { name: '会员与泥点' }));
-    expect(
-      await screen.findByRole('dialog', { name: '会员与泥点' }),
-    ).not.toBeNull();
+    await screen.findByRole('dialog', { name: '会员与泥点' });
     expect(screen.queryByRole('dialog', { name: '微信扫码支付' })).toBeNull();
   });