feat: chat 模式传 messageType/versionLabel/新 emits 给 MessageCard

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

@@ -221,18 +221,28 @@
               >
                 <MessageCard
                   v-if="message.sender === 'assistant' || message.type === 'script'"
+                  message-type="script"
+                  :version-label="formatVersionLabel(message)"
+                  :has-children="messageHasChildren(message)"
+                  :can-delete="message.id !== currentVersionMessageId && message.parentMessageId !== null"
+                  :can-rewrite="true"
+                  :can-continue="true"
                   :content="message.content"
                   :collapsed="isMessageCollapsed(message)"
                   :content-length="message.content.length"
-                  :is-short-message="message.content.length < 100"
+                  :is-short-message="false"
                   :tts-icon="ttsPlayer.playing.value ? 'Ⅱ' : '▶'"
                   :tts-text="ttsPlayer.playing.value ? '暂停' : '播放'"
                   @toggle-collapse="toggleMessageCollapse(message)"
                   @copy="copyMessageContent(message)"
+                  @rewrite="rewriteMessage(message)"
+                  @continue-script="continueMessage(message)"
+                  @view-versions="viewMessageVersions(message)"
+                  @delete-version="removeVersion(message)"
+                  @play-tts="playMessageTts(message)"
                   @change-direction="changeDirection"
                   @not-like-me="notLikeMe"
                   @continue="continueMessage(message)"
-                  @play-tts="playMessageTts(message)"
                 />
                 <view v-else class="chat-bubble user">
                   <text>{{ message.content }}</text>
@@ -719,6 +729,66 @@ const initializeFirstAIMessage = async () => {
   }
 }
 
+/**
+ * 格式化版本标签，显示在 MessageCard 上
+ */
+const formatVersionLabel = (message) => {
+  if (message.type !== 'script') return ''
+  const versionNum = message.versionNumber || 1
+  const isCurrent = message.id === currentVersionMessageId.value
+  return isCurrent ? `V${versionNum} (当前)` : `V${versionNum}`
+}
+
+/**
+ * 判断消息是否有子版本
+ */
+const messageHasChildren = (message) => {
+  if (!message || message.type !== 'script') return false
+  // 通过 versions 列表判断是否有子版本
+  return versions.value.some(v => v.parentMessageId === message.id)
+}
+
+/**
+ * 查看消息的版本历史
+ */
+const viewMessageVersions = async (message) => {
+  try {
+    const res = await listMessageVersions(message.id)
+    const versionList = res.data || []
+    if (versionList.length === 0) {
+      uni.showToast({ title: '暂无历史版本', icon: 'none' })
+      return
+    }
+
+    const items = versionList.map(v => {
+      const isCurrent = v.id === currentVersionMessageId.value
+      return `${isCurrent ? '★ ' : ''}V${v.versionNumber || '-'}`
+    })
+
+    uni.showActionSheet({
+      itemList: items,
+      success: async (actionRes) => {
+        const selected = versionList[actionRes.tapIndex]
+        if (!selected) return
+        if (selected.id === currentVersionMessageId.value) {
+          uni.showToast({ title: '已是当前版本', icon: 'none' })
+          return
+        }
+        try {
+          await switchVersion({ scriptId: scriptId.value, messageId: selected.id })
+          currentVersionMessageId.value = selected.id
+          await loadMessages()
+          uni.showToast({ title: `已切换到 V${selected.versionNumber}`, icon: 'success' })
+        } catch (switchErr) {
+          uni.showToast({ title: switchErr.message || '切换失败', icon: 'none' })
+        }
+      }
+    })
+  } catch (error) {
+    uni.showToast({ title: error.message || '加载版本失败', icon: 'none' })
+  }
+}
+
 const sendChat = async () => {
   if (!chatInput.value.trim() || generating.value) return
   const content = chatInput.value.trim()