Rule Insights Dashboard for organizations [Public Preview]

### Value Prop
The Rule Insights Dashboard now gives enterprise teams an organization-wide view of how repository rules are evaluated and followed across every repo in one place. With custom property filtering, aggregated metrics, CSV export, and REST API access, governance and compliance teams can generate org-wide reports without manually stitching together data from individual repositories. This makes it faster and easier to demonstrate compliance and maintain consistent governance across large codebases.

### Expected Outcome
Enterprise teams responsible for governance and compliance gain reliable, aggregated visibility into rule adherence at the organization level — not just per repository. By centralizing this data with flexible filtering and export options, teams can spend less time on manual reporting and more time acting on insights. The goal is to make org-wide governance practical and scalable, even for organizations managing hundreds or thousands of repositories.

未指定任何仓库文件、测试或入口点。首先查看面向整个组织的 Rule Insights Dashboard 范围，包括自定义属性筛选、聚合指标、CSV 导出和 REST API 访问；当这些功能能够提供可靠的组织级规则遵循报告时，即视为完成。

由索引模型根据 Issue 内容生成。