menu formatting update

README.md

@@ -34,6 +34,19 @@ its Git origin. Branch switching is refused when the installed repository has
 local changes or when the destination branch has commits that would be
 discarded.
 
+## Menu presentation
+
+Menus use cyan for the selection and task prompts, muted context and navigation
+help, and text labels alongside success, warning, and error colors. A `>` on the
+right of an item marks a submenu. Extra context appears below the selected item.
+The header stacks host details on narrow terminals and separates update status
+from menu actions. Task output replaces the choices while retaining the header.
+
+The shared menu layout and disk report omit ANSI styling when redirected or when
+`NO_COLOR` is set. Disk reports separate scan coverage from result counts, group
+findings by storage and node, and explain approximate sizes without adding CSV
+columns. CSV content and disk classification are unchanged by the presentation.
+
 ## Direct actions
 
 The menu script also supports these direct actions:
@@ -59,7 +72,7 @@ orphan-disks Report cluster-wide orphan candidates and unused disks (read-only)
 
 ## Orphaned and unused disks
 
-Open **Cluster & Maintenance → Find orphaned / unused disks (read-only)**.
+Open **Cluster & Maintenance → Find orphaned and unused disks [Read-only]**.
 The menu offers CSV export after displaying the report. Direct commands:
 
 ```bash