The storage bar turned red, leadership asked why we are paying for more, and I do not have an answer I can defend

SharePoint tenant storage nears quota while leadership questions extra spend. Admins see large sites but not version bloat, abandoned content, or what must stay. Without a defensible inventory, orgs buy more by default or delete nervously.

This is a researched blocker from SharePoint & Teams Admins. Below is the solution path — from understanding it to a paste-ready asset.