feat: add gpt-6.1-terra and default exploration to high reasoning

apps/showcase_ui/src/app/components/featured-tasks/featured-tasks.component.spec.ts

@@ -35,7 +35,7 @@ describe('Featured tasks',()=>{
     expect(fixture.nativeElement.textContent).not.toContain('旧任务部分配置缺失');
     fixture.nativeElement.querySelector('.configure').click();fixture.detectChanges();flushMicrotasks();
     const select:HTMLSelectElement=fixture.nativeElement.querySelector('app-model-selector select');
-    expect(Array.from(select.options,option=>option.value)).toEqual(['gpt-6-luna','gpt-6.1-sol','gpt-6-astra','mimo-v2.6-pro','__custom__']);
+    expect(Array.from(select.options,option=>option.value)).toEqual(['gpt-6-luna','gpt-6.1-terra', 'gpt-6.1-sol','gpt-6-astra','mimo-v2.6-pro','__custom__']);
     expect(select.value).toBe('__custom__');
     expect(fixture.nativeElement.querySelector('input[aria-label="复跑模型（自定义）"]').value).toBe('original-model');
     select.value='gpt-6-luna';select.dispatchEvent(new Event('change'));fixture.detectChanges();