fix: 剧情流连续节点重建 StoryPlayer（:key）+ 提交后隐藏选项防重复

ui-src/src/pages/play/play.vue

@@ -47,7 +47,7 @@
 
       <!-- 节点：剧情流（script 非空）或 v1 卡片（回退） -->
       <view v-if="curNode && isStoryNode" class="node story-node">
-        <StoryPlayer :script="storyScript" :character="curNode.character" :show-pinyin="showPinyin" @done="showOptions = true" />
+        <StoryPlayer :key="curNode.node_id" :script="storyScript" :character="curNode.character" :show-pinyin="showPinyin" @done="showOptions = true" />
         <view v-if="showOptions" class="story-options">
           <PropPick v-if="activeInteraction === 'PropPick'" :config="curNode.config" @done="interactionDone" />
           <FindSpot v-else-if="activeInteraction === 'FindSpot'" :config="curNode.config" @done="interactionDone" />
@@ -265,6 +265,7 @@ export default {
             this.sceneFx = ''
             if (this.isStoryNode) {
               this.reply = fb
+              this.showOptions = false // 提交后隐藏选项区，防重复点击
             } else {
               this.feedback = fb
             }