refactor: 调整默认返回值逻辑的处理范围

src/Application.php

@@ -238,21 +238,11 @@ class Application implements ClientInterface
 
         if ($response->getStatusCode() >= 500) {
             if ($this->logger) {
-                $this->logger->error("sdk error, paypal service fail", $context);
+                $this->logger->error("sdk error, Upstream service fail", $context);
             }
-            throw new SdkException("SDK Upstream Failed", $request, $response, []);
+            throw new ApplicationException("SDK Upstream Failed", $request, []);
         }
 
-        if (in_array($response->getStatusCode(), [404, 405])) {
-            if ($this->logger) {
-                $this->logger->error("sdk error, endpoint not found", $context);
-            }
-            throw new ApplicationException("Api Endpoint Not Found.", $request, []);
-        }
-
-        $rpcResult = [];
-
-        if ($response->getStatusCode() != 304) {
         try {
             $rpcResult = $this->option->handlingPolicy()->process($response);
         } catch (GuiltyResultException $exception) {
@@ -273,8 +263,6 @@ class Application implements ClientInterface
             }
             throw new ApplicationException("Content Format error.", $request, []);
         }
-        }
-
 
         $version = $response->getHeader('ETag');
         if (!empty($version)) {