fix: createMessage 补 userId 字段 + 使用 senderType/contentType

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

@@ -694,6 +694,18 @@ const loadMessages = async () => {
   }
 }
 
+const getCurrentUserId = () => {
+  try {
+    const token = uni.getStorageSync('access_token')
+    if (!token) return ''
+    const payload = token.split('.')[1]
+    const decoded = JSON.parse(decodeURIComponent(Array.from(atob(payload), c => '%' + ('00' + c.charCodeAt(0).toString(16)).slice(-2)).join('')))
+    return decoded.sub || ''
+  } catch (e) {
+    return ''
+  }
+}
+
 /**
  * 历史剧本兼容：基于 plotJson 初始化首条 AI 剧本消息
  * 触发条件：loadMessages 返回空列表，且 currentResult.plotJson.fullContent 存在
@@ -703,11 +715,13 @@ const initializeFirstAIMessage = async () => {
   if (!content) return
 
   try {
+    const userId = getCurrentUserId()
     // 先保存用户心愿消息（theme）
     const theme = currentResult.value?.theme || currentResult.value?.title || ''
     if (theme) {
       await createMessage({
         conversationId: conversationId.value,
+        userId,
         content: theme,
         senderType: 'user',
         contentType: 'chat'
@@ -717,6 +731,7 @@ const initializeFirstAIMessage = async () => {
     // 再保存 AI 剧本消息
     await createMessage({
       conversationId: conversationId.value,
+      userId,
       content,
       senderType: 'assistant',
       contentType: 'script',
@@ -796,6 +811,7 @@ const sendChat = async () => {
 
   const userMessageRes = await createMessage({
     conversationId: conversationId.value,
+    userId: getCurrentUserId(),
     content,
     senderType: 'user',
     contentType: 'chat'
@@ -847,6 +863,7 @@ const rewriteMessage = (msg) => {
 const sendRewrite = async (targetMessageId, content) => {
   const userMessageRes = await createMessage({
     conversationId: conversationId.value,
+    userId: getCurrentUserId(),
     content,
     senderType: 'user',
     contentType: 'chat'