[EvaluationResult Convert]Counts only for primary metrics when multiple metrics and exclude errored counts for passed/failed

[YoYoJa]

Description

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[Copilot]

Pull Request Overview

This PR introduces filtering logic to skip non-primary metrics when calculating AOAI evaluation summaries. The primary metric is defined as the first metric in the list for evaluators that produce multiple metrics.

• Added a new _is_primary_metric function to determine if a metric is a primary metric
• Modified _calculate_aoai_evaluation_summary to skip counting non-primary metrics
• Reordered the rouge_score metrics list to make rouge_f1_score the primary metric instead of rouge_precision

Reviewed Changes

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

File	Description
sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/_evaluate/_evaluate.py	Added _is_primary_metric function and integrated primary metric filtering into _calculate_aoai_evaluation_summary
sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/_constants.py	Updated documentation for _EvaluatorMetricMapping and reordered rouge_score metrics