Site Storage Heatmap

Generates an interactive HTML site map showing storage breakdown and hot/cold activity heatmap across all document libraries, lists, and site pages on a SharePoint site.

Includes a site-wide summary with stacked horizontal bars showing hot/warm/cool/cold activity tiers, and per-library click-through drill-downs with file count, total size, file type breakdown, and activity heatmap. Saves the file as {FirstName}-Site-Storage-Heatmap.html and navigates the user directly to it.