fix(mobile): focus SOP answers after search

mobile-uni/tests/mobile-user-pages.test.mjs

@@ -37,14 +37,16 @@ test('训练页提交失败会回滚本次乐观追加的对话', async () => {
   assert.match(source, /turns\.value = previousTurns/);
 });
 
-test('训练结果和 SOP 答案生成后重置到内容首屏', async () => {
-  const [practiceSource, sopSource] = await Promise.all([
+test('训练结果回到顶部，SOP 答案生成后定位到回答区', async () => {
+  const [practiceSource, sopSource, navigationSource] = await Promise.all([
     pageSource('../src/pages/user/practice/index.vue'),
-    pageSource('../src/pages/user/sop/index.vue')
+    pageSource('../src/pages/user/sop/index.vue'),
+    pageSource('../src/services/navigation.ts')
   ]);
 
   assert.match(practiceSource, /result\.value = await finishPractice\([\s\S]*?resetPageScroll\(\)/);
-  assert.match(sopSource, /result\.value = await searchKnowledge\(value\);\s*resetPageScroll\(\)/);
+  assert.match(sopSource, /result\.value = await searchKnowledge\(value\);\s*scrollPageToSelector\('\.answer-panel'/);
+  assert.match(navigationSource, /export const scrollPageToSelector = \(selector: string/);
 });
 
 test('训练历史按摘要、逐句复盘、SOP 依据和行动建议分层', async () => {