chore：往上翻历史记录，不在乱窜了

components/ai-chat-message/ai-chat-message.vue

@@ -438,7 +438,7 @@ export default {
       isAIServiceAvailable: true,
       aiServiceError: null,
 	  isLoadingHistory: false, // 新增：标记历史加载状态
-
+      shouldScrollToBottom: false
     }
   },
   onShow() {
@@ -464,16 +464,24 @@ export default {
     this.initUserNicknameData()
 	this.currentConversationId = aiService.getConversationId();
   },
-  mounted() {
-    this.scrollToBottom()
-  },
+   mounted() {
+      // 初始加载时滚底（仅一次）
+      this.$nextTick(() => {
+        this.scrollToBottom()
+      })
+    },
   watch: {
-    messages: {
-      handler() {
-        this.$nextTick(() => {
-          this.scrollToBottom()
-        })
-      },
+      messages: {
+        handler() {
+          this.$nextTick(() => {
+            // 仅当不是加载历史、且需要滚底时，才执行滚底
+            if (!this.isLoadingHistory && this.shouldScrollToBottom) {
+              this.scrollToBottom()
+              // 滚底后重置状态，避免重复触发
+              this.shouldScrollToBottom = false
+            }
+          })
+        },
       deep: true
     }
   },
@@ -519,38 +527,42 @@ export default {
       }
     },
     // 👇 新增：加载历史记录
-    async loadChatHistoryIfExist() {
-      const convId = aiService.getConversationId();
-      if (convId) {
-        try {
-          const history = await aiService.getConversationHistory({
-            conversation_id: convId,
-            uniacid: this.$store.state.uniacid,
-            user_id: this.$store.state.memberInfo?.id || 'anonymous'
-          });
-    
-          if (history.success && history.messages?.length > 0) {
-            // 格式化消息
-            this.messages = history.messages.map(msg => ({
-              id: msg.message_id || (Date.now() + Math.random() * 10000), 
-              role: msg.role === 'user' ? 'user' : 'assistant',
-              content: msg.content || msg.answer || msg.text || '',
-              timestamp: msg.created_at,
-              actions: msg.role !== 'user' ? [
-                { id: 1, text: '有帮助', type: 'like' },
-                { id: 2, text: '没帮助', type: 'dislike' }
-              ] : []
-            }));
-          }
-        } catch (error) {
-          console.error('加载历史记录失败:', error);
-          // 可选：清除无效ID
-          aiService.clearConversationId();
-		  this.clearConversationIdFromLocal();
-		    this.currentConversationId = null;
-        }
-      }
-    },
+   async loadChatHistoryIfExist() {
+     const convId = aiService.getConversationId();
+     if (convId) {
+       try {
+         const history = await aiService.getChatHistory();
+         if (!history || !Array.isArray(history.messages)) {
+           console.warn('历史记录为空或格式无效');
+           return;
+         }
+   
+         this.messages = history.messages.map(msg => {
+           let content = '';
+           if (msg.role === 'user') {
+             content = msg.query || (typeof msg.inputs === 'string' ? msg.inputs : JSON.stringify(msg.inputs || '')) || '';
+           } else {
+             content = msg.answer || '';
+           }
+           return {
+             id: msg.message_id || (Date.now() + Math.random() * 10000),
+             role: msg.role === 'user' ? 'user' : 'assistant',
+             content: content,
+             timestamp: msg.created_at,
+             actions: msg.role !== 'user' ? [
+               { id: 1, text: '有帮助', type: 'like' },
+               { id: 2, text: '没帮助', type: 'dislike' }
+             ] : []
+           };
+         });
+       } catch (error) {
+         console.error('加载历史记录失败:', error);
+         aiService.clearConversationId();
+         this.clearConversationIdFromLocal();
+         this.currentConversationId = null;
+       }
+     }
+   },
     // 新增：初始化用户昵称（支持缓存持久化）
     initUserNicknameData() {
       // 1. 优先读取本地缓存的昵称
@@ -688,7 +700,7 @@ export default {
         content: this.inputText.trim(),
         timestamp: Date.now()
       }
-      
+       this.shouldScrollToBottom = true
       this.messages.push(userMessage)
       this.inputText = ''
       
@@ -700,7 +712,7 @@ export default {
         content: '',
         timestamp: Date.now()
       }
-      
+      this.shouldScrollToBottom = true
       this.messages.push(loadingMessage)
       
       try {
@@ -736,7 +748,7 @@ export default {
             { id: 1, text: '重试', type: 'retry' }
           ]
         }
-        
+        this.shouldScrollToBottom = true
         this.messages.push(errorMessage)
         this.$emit('ai-response', errorMessage)
       }
@@ -775,7 +787,7 @@ export default {
           { id: 2, text: '没帮助', type: 'dislike' }
         ]
       }
-      
+      this.shouldScrollToBottom = true
       this.messages.push(aiMessage)
       this.$emit('ai-response', aiMessage)
     },
@@ -794,6 +806,7 @@ export default {
       
       // 移除加载状态，添加流式消息
       this.messages = this.messages.filter(msg => msg.type !== 'loading')
+	  this.shouldScrollToBottom = true
       this.messages.push(streamMessage)
       
      // 开始流式响应