fix(backups): читать экспорт RouterOS порциями без потери данных

docs/ux-ui/acceptance/backup231-deployment.json

@@ -0,0 +1,21 @@
+{
+  "date": "2026-10-14",
+  "block": "12.5.231",
+  "backendSourceMatched": 500,
+  "compiledMatched": 1060,
+  "frontendChanged": false,
+  "services": {
+    "backend": {
+      "image": "mmapp-test/backend:ux-backup231",
+      "imageId": "sha256:a52c0243525dd141a10be8a6f615fed99faa04db16b6c250eb87879881b06133",
+      "running": true,
+      "health": "healthy"
+    },
+    "frontend": {
+      "image": "mmapp-test/frontend:ux-routing218",
+      "imageId": "sha256:ec658b9da88c19d60987be5bfc0c15fb339a0310d7a42dc761b40a70a3428c5a",
+      "running": true,
+      "health": null
+    }
+  }
+}

docs/ux-ui/acceptance/backup231-source.json

@@ -0,0 +1,10 @@
+{
+  "date": "2026-10-14",
+  "block": "12.5.231",
+  "kinds": [
+    {
+      "kind": "backend",
+      "matched": 500
+    }
+  ]
+}

docs/ux-ui/acceptance/native-export231.json

@@ -0,0 +1,24 @@
+{
+  "date": "2026-10-14",
+  "block": "12.5.231",
+  "devices": [
+    {
+      "host": "194.226.121.150",
+      "passed": true,
+      "bytes": 917,
+      "sha256": "a7d636db2db403a98718098c0a38e142c6b5634ef2c7ff73b88647da45288fbe",
+      "native": true,
+      "filesBaselineMatched": true
+    },
+    {
+      "host": "104.165.244.7",
+      "passed": true,
+      "bytes": 782,
+      "sha256": "c8f5cf4662e5b5b32d900fe3c38f93c5592977ca77bfef79c8ae82a09f20c0c7",
+      "native": true,
+      "filesBaselineMatched": true
+    }
+  ],
+  "configurationWrites": 0,
+  "passed": true
+}