fix(aiot): 移除实时视频菜单项

从后端菜单定义中彻底删除实时视频菜单条目，
而非仅设置 visible=False，确保前端不再显示该菜单。

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/routers/yudao_auth.py

@@ -328,18 +328,6 @@ def _build_aiot_menus():
                     "visible": True,
                     "keepAlive": True,
                 },
-                {
-                    "id": 2030,
-                    "parentId": 2000,
-                    "name": "实时视频",
-                    "path": "video/live",
-                    "component": "aiot/video/live/index",
-                    "componentName": "AiotVideoLive",
-                    "icon": "ep:video-camera",
-                    "sort": 5,
-                    "visible": False,
-                    "keepAlive": True,
-                },
                 {
                     "id": 2040,
                     "parentId": 2000,