v1.2修复优化

app/Controllers/ChatController.php

@@ -84,6 +84,9 @@ class ChatController
             ob_end_flush();
         }
 
+        // 使用供应商配置中的 type 字段确定实际驱动
+        $providerType = $providerConfig['type'] ?? 'newapi';
+
         $options = [
             'provider' => $providerConfig,
             'systemPrompt' => $systemPrompt,
@@ -91,7 +94,7 @@ class ChatController
         ];
 
         try {
-            AIService::streamChat($providerKey, $model, $messages, $options, function ($chunk, $type = 'content') {
+            AIService::streamChat($providerType, $model, $messages, $options, function ($chunk, $type = 'content') {
                 if ($type === 'thinking') {
                     self::sendSSE(['thinking' => $chunk]);
                 } else {