🎨 优化前端对话页面 && 优化ai流式传输

Signed-off-by: Echo <1711788888@qq.com>

web-app/src/api/conversation.ts

@@ -106,4 +106,9 @@ export const conversationApi = {
   updateConversationSettings: (conversationId: number, settings: Record<string, any>) => {
     return apiClient.put(`/app/conversation/${conversationId}/settings`, { settings })
   },
+
+  // 重新生成最后一条 AI 回复（非流式）
+  regenerateMessage: (conversationId: number) => {
+    return apiClient.post<Message>(`/app/conversation/${conversationId}/regenerate`)
+  },
 }