优化新建服务器体验及镜像列表设置排序及删除阿里镜像

dashboard/src2/pages/NewJsiteServer.vue

@@ -36,7 +36,7 @@
 
           <div>
             <label class="block text-sm font-medium text-gray-700 mb-2">镜像选择（Jsite服务器推荐选择Ubuntu-22.04）</label>
-            <select v-model="selectedImageId" class="w-full border rounded px-3 py-2" required @change="onImageChange">
+            <select v-model="selectedImageId" class="w-full border rounded px-3 py-2" required :disabled="!selectedRegionId" @change="onImageChange">
               <option value="">请选择镜像</option>
               <option v-for="image in images" :key="getImageId(image)" :value="getImageId(image)">
                 {{ getImageDisplayName(image) }}

jcloud/api/aliyun_server_light.py

@@ -653,7 +653,21 @@ def get_aliyun_plans(region_id='cn-shanghai'):
 def get_aliyun_images(image_type='system', region_id='cn-shanghai'):
     """获取可用镜像列表"""
     manager = _get_manager()
-    return manager.get_images(image_type, region_id)
+    result = manager.get_images(image_type, region_id)
+    
+    # 如果获取成功且有镜像数据，过滤并排序
+    if result.get('success') and result.get('data') and 'images' in result['data']:
+        images = result['data']['images']
+        # 过滤掉以 "alibaba" 开头的镜像（不区分大小写）
+        filtered_images = [
+            image for image in images 
+            if not image.get('image_name', '').lower().startswith('alibaba')
+        ]
+        # 按镜像名称（image_name）进行字母排序
+        sorted_images = sorted(filtered_images, key=lambda x: x.get('image_name', '').lower())
+        result['data']['images'] = sorted_images
+    
+    return result
 
 @jingrow.whitelist()
 def get_aliyun_regions():