fix(traffic): сохранять точность объёмов и обозначать бинарные единицы

docs/ux-ui/acceptance/traffic-volume-api-2026-10-12.json

@@ -0,0 +1,26 @@
+{
+  "date": "2026-10-12",
+  "block": "12.5.180",
+  "version": "1.0.0-test.volume180",
+  "passed": true,
+  "method": "Read-only actual application volume API; no new native RouterOS commands; exact edge values covered separately by owned SQL",
+  "cases": [
+    {
+      "sourceId": "1",
+      "volumeUnit": "GiB",
+      "rxTotalGiB": 0.013485109433531761,
+      "txTotalGiB": 0.001898050308227539,
+      "currentState": "current"
+    },
+    {
+      "sourceId": "2",
+      "volumeUnit": "GiB",
+      "rxTotalGiB": 0.0021370751783251762,
+      "txTotalGiB": 0.0023917602375149727,
+      "currentState": "current"
+    }
+  ],
+  "newRouterOSCommands": 0,
+  "passwordChanges": 0,
+  "messages": 0
+}