功能：接入Linux原生光标并完善设备接入工具

docs/evidence/native-cursor-20261105/test2-preflight.json

@@ -0,0 +1,7 @@
+{
+  "host": "192.168.1.72",
+  "ready": false,
+  "samples": [],
+  "stderr": "Traceback (most recent call last):\n  File \"/home/test2/vdi-terminal/native-cursor-v1/host.py\", line 211, in <module>\n    main()\n  File \"/home/test2/vdi-terminal/native-cursor-v1/host.py\", line 205, in main\n    stream()\n  File \"/home/test2/vdi-terminal/native-cursor-v1/host.py\", line 154, in stream\n    raise RuntimeError('guard not ready')\nRuntimeError: guard not ready\n",
+  "exit": 1
+}