fix(traffic): объединять чтения истории общего сервера

docs/ux-ui/acceptance/traffic-users193-source193-result.json

@@ -0,0 +1,10 @@
+{
+  "date": "2026-10-13",
+  "block": "12.5.193",
+  "matched": {
+    "backend": 462,
+    "frontend": 0
+  },
+  "different": [],
+  "missing": []
+}