adibrov: add test copy alert for CI verification (unique rule name)

Made-with: Cursor

environments/dev/adibrov/alerts/self-monitoring/disk_space_low_vcmt_nodes_test_copy.yaml

@@ -0,0 +1,31 @@
+name: "DEV ADIBROV - Low Disk Space (10%) - VCMT Nodes TEST COPY"
+expression: |
+   100 - (
+      node_filesystem_avail_bytes{
+        instance=~"ydx-.*:9100",
+        mountpoint!~"^(/sys.*|/proc.*|/dev.*|/run.*|/boot.*)$",
+        fstype=~"(zfs|xfs|ext.)"
+      }
+      * 100
+      /
+      node_filesystem_size_bytes{
+        instance=~"ydx-.*:9100",
+        mountpoint!~"^(/sys.*|/proc.*|/dev.*|/run.*|/boot.*)$",
+        fstype=~"(zfs|xfs|ext.)"
+      }
+      )
+threshold: 90
+for: "1m"
+condition_type: "gt"
+need_reduce: true
+reducer_type: "min"
+no_data_state: "NoData"
+exec_err_state: "Error"
+labels:
+  service: "system"
+  severity: "critical"
+  status: "test"
+summary: |
+  {{ printf "%.0f" $values.B.Value }}% Usage on {{ $labels.mountpoint }} ({{ $labels.instance }})
+description: |
+  ТЕСТОВЫЙ АЛЛЕРТ (копия для проверки CI) — дев контур.