feat：ScriptLibraryView 新增大纲预览行

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

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

@@ -86,6 +86,10 @@
             <text v-for="tag in getTags(script)" :key="tag" class="tag">{{ tag }}</text>
           </view>
 
+          <view v-if="getOutlinePreview(script)" class="outline-preview-row">
+            <text class="outline-preview-text">{{ getOutlinePreview(script) }}</text>
+          </view>
+
           <text class="summary">{{ script.summary || script.content || '一段正在生成中的平行人生剧本。' }}</text>
 
           <view class="meta-row">
@@ -249,6 +253,20 @@ const getProgress = (script) => Math.max(0, Math.min(99, Number(script.progress
 
 const getInitial = (script) => (script.title || '剧').slice(0, 1)
 
+/**
+ * 获取大纲预览文本（前 2 章标题）
+ * 数据来源：script.plotJson.stages.outline.beats
+ */
+const getOutlinePreview = (script) => {
+  const beats = script?.plotJson?.stages?.outline?.beats
+  if (!Array.isArray(beats) || beats.length === 0) return ''
+  const parts = beats.slice(0, 2).map((beat, i) => {
+    const title = beat.title || ''
+    return `第${i + 1}章：${title}`
+  })
+  return `📋 ${parts.join(' · ')}`
+}
+
 const isFavorite = (script) => {
   return Boolean(favoriteStatus.value[String(script.id)])
 }
@@ -795,6 +813,19 @@ const confirmDeleteScript = async () => {
   background: rgba(149, 55, 255, 0.2);
 }
 
+.outline-preview-row {
+  margin-top: 10rpx;
+  padding: 10rpx 14rpx;
+  border-radius: 14rpx;
+  background: rgba(168, 85, 247, 0.08);
+  border: 1rpx solid rgba(168, 85, 247, 0.16);
+}
+.outline-preview-text {
+  font-size: 22rpx;
+  color: rgba(193, 134, 255, 0.88);
+  line-height: 1.4;
+}
+
 .summary {
   display: -webkit-box;
   margin-top: 14rpx;