导师相关接口换offer派接口，职位列表和职位详情，Nova聊天侧边栏UI重写

src/utils/aiRequest.ts

@@ -105,9 +105,10 @@ export interface NovaChatResponse {
  * Nova AI 对话
  * POST /nova-chat/chat
  * @param params 对话参数
+ * @returns 完整响应体 { code, msg, data: { message } }
  */
 export function sendNovaChat(params: NovaChatParams) {
-  return aiService.post<NovaChatResponse>('/nova-chat/chat', params, {
+  return aiService.post<AiResult<NovaChatResponse>>('/nova-chat/chat', params, {
     headers: {
       Token: DEFAULT_TOKEN,
     },