fix(frontend): remove interview sample fill actions

frontend/src/views/recruit/interview.vue

@@ -105,21 +105,13 @@
           <div class="answer-box">
             <div class="answer-head">
               <span>候选人回答 · {{ activeQuestion.scenario }}</span>
-              <el-button text type="danger" @click="fillSampleAnswer">填入参考回答</el-button>
             </div>
-            <el-input
-              v-model="answers[activeQuestion.id]"
-              type="textarea"
-              :rows="6"
-              resize="none"
-              placeholder="输入候选人真实回答，或点击“填入参考回答”快速推进测试"
-            />
+            <el-input v-model="answers[activeQuestion.id]" type="textarea" :rows="6" resize="none" placeholder="输入候选人真实回答" />
           </div>
 
           <div class="action-row question-actions">
             <el-button @click="moveQuestion(-1)">上一题</el-button>
             <el-button @click="moveQuestion(1)">下一题</el-button>
-            <el-button @click="fillAllSampleAnswers">填满参考回答</el-button>
             <el-button @click="saveDraft">保存草稿</el-button>
             <el-button type="danger" :disabled="!canScore" @click="finishScore">完成评分</el-button>
           </div>
@@ -518,17 +510,6 @@ const generateQuestions = async () => {
   generated.value = true;
 };
 
-const fillSampleAnswer = () => {
-  answers[activeQuestion.value.id] = activeQuestion.value.sampleAnswer;
-};
-
-const fillAllSampleAnswers = () => {
-  questions.value.forEach((question) => {
-    answers[question.id] = question.sampleAnswer;
-  });
-  ElMessage.success('已填入全部参考回答');
-};
-
 const moveQuestion = (offset: number) => {
   const index = questions.value.findIndex((question) => question.id === activeQuestion.value.id);
   const nextIndex = Math.min(Math.max(index + offset, 0), questions.value.length - 1);