fix：ScriptView 语音按钮改为麦克风图标

mini-program/src/pages/main/ScriptView.vue

@@ -272,7 +272,7 @@
           @touchend.prevent="endVoicePress"
           @touchcancel.prevent="cancelVoicePress"
         >
-          <text>语音</text>
+          <text class="voice-icon">🎤</text>
         </view>
         <view class="result-input-shell" :class="{ twoLine: resultInputLevel === 'two', expanded: resultInputLevel === 'multi' }">
           <text v-if="!resultChatInput" class="custom-input-placeholder result-input-placeholder">继续提修改建议，或确认后重新生成</text>
@@ -3056,6 +3056,11 @@ onUnmounted(() => {
   box-shadow: 0 0 30rpx rgba(168, 85, 247, 0.38);
 }
 
+.voice-icon {
+  font-size: 32rpx;
+  line-height: 1;
+}
+
 .result-input-shell {
   position: relative;
   flex: 1;