fix: ci issue

[rahulguptajss]

No description provided.

[Copilot]

Pull request overview

This PR adjusts the MetricAgent compute-metric behavior to avoid dropping derived metrics in single-matrix mode when a non-primary operand metric exists but has no value for a given instance (treating that missing operand as 0 instead of skipping the derived metric), and adds a regression test for the scenario.

Changes:

• Update computeMetrics to only skip derived metric computation on missing operand values in the multi-matrix case.
• Add a unit test covering single-matrix computation when optional operands are missing for an instance.
• Minor import ordering cleanup in the test file.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
cmd/poller/plugin/metricagent/metric_agent.go	Changes missing-operand handling so single-matrix rules don’t skip derived metrics when an operand value is absent.
cmd/poller/plugin/metricagent/metric_agent_test.go	Adds a regression test ensuring missing optional operands are treated as 0 (and fixes import order).

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