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

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

@@ -0,0 +1,39 @@
+{
+  "date": "2026-10-12",
+  "method": "Read-only current source reproduction: positive measured deltas are rounded before aggregation; binary quantity carries decimal label",
+  "cases": [
+    {
+      "bytes": 1024,
+      "actualGiB": 9.5367431640625e-7,
+      "apiTotal": 0,
+      "display": "0.0 ГБ",
+      "observed": true
+    },
+    {
+      "bytes": 1048576,
+      "actualGiB": 0.0009765625,
+      "apiTotal": 0,
+      "display": "0.0 ГБ",
+      "observed": true
+    },
+    {
+      "bytes": 1073741824,
+      "actualGiB": 1,
+      "apiTotal": 1,
+      "display": "1.0 ГБ",
+      "observed": true
+    },
+    {
+      "bytes": 1000000000,
+      "actualGiB": 0.9313225746154785,
+      "apiTotal": 0.9,
+      "display": "0.9 ГБ",
+      "observed": true
+    }
+  ],
+  "merged100MiB": {
+    "apiTotal": 0,
+    "actualGiB": 0.09765625
+  },
+  "fixed": false
+}