fix: support max reasoning and custom model selection for 1.0.0

apps/showcase_ui/src/app/components/model-settings/model-settings.component.spec.ts

@@ -36,6 +36,47 @@ describe('持久化模型与功能设置', () => {
     expect(component.message()).toContain('保存');
   });
 
+  it('预设按钮填入名称，自定义模型与 max 可以保存并重新加载', async () => {
+    const fixture = TestBed.createComponent(ModelSettingsComponent);
+    fixture.detectChanges();
+    http.expectOne('/api/system/model-settings').flush(config);
+    fixture.detectChanges();
+    await fixture.whenStable();
+    const root: HTMLElement = fixture.nativeElement;
+    const presets = root.querySelectorAll<HTMLButtonElement>('.model-presets button');
+    expect(presets.length).toBe(2);
+    presets[0].click();
+    fixture.detectChanges();
+    await fixture.whenStable();
+    const input = root.querySelector<HTMLInputElement>('#model-name')!;
+    expect(input.value).toBe('gpt-5.6-luna');
+    expect(presets[0].getAttribute('aria-pressed')).toBe('true');
+    expect(input.getAttribute('list')).toBeNull();
+    expect(input.autocomplete).toBe('off');
+    input.value = 'custom/model-v2';
+    input.dispatchEvent(new Event('input'));
+    const reasoning = root.querySelector<HTMLSelectElement>('#model-reasoning')!;
+    reasoning.value = 'max';
+    reasoning.dispatchEvent(new Event('change'));
+    fixture.detectChanges();
+    await fixture.whenStable();
+    expect(presets[0].getAttribute('aria-pressed')).toBe('false');
+    root.querySelector<HTMLFormElement>('form')!.dispatchEvent(new Event('submit', { cancelable: true }));
+    const request = http.expectOne('/api/system/model-settings');
+    expect(request.request.body.model).toBe('custom/model-v2');
+    expect(request.request.body.reasoning_effort).toBe('max');
+    const saved = { ...config, model: 'custom/model-v2', reasoning_effort: 'max' };
+    request.flush(saved);
+    fixture.destroy();
+    const reopened = TestBed.createComponent(ModelSettingsComponent);
+    reopened.detectChanges();
+    http.expectOne('/api/system/model-settings').flush(saved);
+    reopened.detectChanges();
+    await reopened.whenStable();
+    expect(reopened.nativeElement.querySelector('#model-name').value).toBe('custom/model-v2');
+    expect(reopened.nativeElement.querySelector('#model-reasoning').value).toBe('max');
+  });
+
   it('连接测试使用当前输入而不写入保存接口', () => {
     const fixture = TestBed.createComponent(ModelSettingsComponent);
     fixture.detectChanges();