Support Uptime Monitor for % Monthly Uptime on Insights Uptime Page

### Problem Statement Currently you can see all your uptime monitors on Insights.Uptime but you have to open each one individually to see the % Monthly Uptime. **Ask:** "How can I see in a report form (or dashboard) a view of all uptimes at once? **Motivation:** "Management wants to review, I want to present to Management" ### Solution Brainstorm **Idea1** Add a column to Insights.Monitors showing % Monthly Uptime. https://demo.sentry.io/insights/uptime/?project=-1&statsPeriod=90d <img width="1697" height="854" alt="Image" src="https://github.com/user-attachments/assets/78c8ce5a-6952-48e9-8059-78950708eea6" /> **Idea2** I'm not sure adding Dashboard Widget support for Uptimes would help, because I'm not sure it would show % Montly Uptime. Anyone know? https://github.com/getsentry/sentry/issues/90607 ### Product Area Alerts