注册ButlerController bean起别名，解决多个ButlerController项目启动报错问题

cfc-backend/src/main/java/com/etotem/cfc/controller/ai/ButlerController.java

@@ -13,7 +13,7 @@ import java.util.Collections;
 import java.util.Map;
 
 @Tag(name = "AI管家", description = "AI管家会话管理接口")
-@RestController
+@RestController("aiButlerController")
 @RequestMapping("/api/ai/butler")
 public class ButlerController {