功能：接入Ubuntu和麒麟云桌面并归档验证记录

docs/evidence/linux-desktops-20261104/final-stream-check.json

@@ -0,0 +1,20 @@
+[
+  {
+    "desktop": "Ubuntu",
+    "endpoint": "192.168.1.72",
+    "hardware_decode_ready": true,
+    "still_running": true
+  },
+  {
+    "desktop": "Kylin",
+    "endpoint": "192.168.1.71",
+    "hardware_decode_ready": true,
+    "still_running": true
+  },
+  {
+    "desktop": "Windows",
+    "endpoint": "192.168.1.70",
+    "hardware_decode_ready": true,
+    "still_running": true
+  }
+]