fix(v0.11): Feign/OpenFeign 与走查后续整改

- intelligent-cwoscomponent-rest：全部 Feign Fallback 改为 CloudwalkResult.fail(76260800, …)
- 各 FeignClient 与 cloudwalk-cloud-common POM 调整（与既有未提交变更一致）
- cloud：GroupEventListener 日志类名与异常分支收窄；校验切面 Pointcut 方法拼写修正
- elevator-web：AbstractCloudwalkController 请求上下文判空；getKey 停用明文密钥仅保留对时字段

Made-with: Cursor

maven-cloudwalk-cloud/cloudwalk-common-service/src/main/java/cn/cloudwalk/service/aop/CloudwalkParamsValidateAspect.java

@@ -39,9 +39,9 @@ public class CloudwalkParamsValidateAspect {
     }
 
     @Pointcut("@annotation(cn.cloudwalk.cloud.annotation.CloudwalkParamsValidate)")
-    public void validatePointcat() {}
+    public void validatePointcut() {}
 
-    @Around("validatePointcat()")
+    @Around("validatePointcut()")
     public Object around(ProceedingJoinPoint joinPoint) throws Throwable {
         MethodSignature methodSignature = (MethodSignature)joinPoint.getSignature();
         Method targetMethod =