refactor: 调整创建会话的接口,返回创建的会话ID

src/main/java/cn/teammodel/controller/frontend/AiController.java

@@ -38,8 +38,8 @@ public class AiController {
     @PostMapping("session/create")
     @ApiOperation("创建聊天会话")
     public R<String> createSession() {
-        chatSessionService.createSession();
-        return R.success("创建会话成功");
+        String sessionId = chatSessionService.createSession();
+        return R.success(sessionId);
     }
 
     @PostMapping("session/remove")

src/main/java/cn/teammodel/service/ChatSessionService.java

@@ -11,7 +11,7 @@ import java.util.List;
  */
 public interface ChatSessionService {
 
-    void createSession();
+    String createSession();
 
     List<ChatSession> listMySession();
 

src/main/java/cn/teammodel/service/impl/ChatSessionServiceImpl.java

@@ -35,7 +35,7 @@ public class ChatSessionServiceImpl implements ChatSessionService {
     private ChatSessionRepository chatSessionRepository;
 
     @Override
-    public void createSession() {
+    public String createSession() {
         User user = SecurityUtil.getLoginUser();
         String userId = user.getId();
         // 初始化欢迎语
@@ -49,7 +49,7 @@ public class ChatSessionServiceImpl implements ChatSessionService {
         chatSession.setCreateTime(Instant.now().toEpochMilli());
         chatSession.setUpdateTime(Instant.now().toEpochMilli());
         chatSession.setHistory(history);
-        chatSessionRepository.save(chatSession);
+        return chatSessionRepository.save(chatSession).getId();
     }
 
     @Override