Update storage display format to match CLAUDE.md specification

Remove parentheses from drive temperature/wear display to match the
hierarchical format specified in documentation. Drive details now show
directly with status icons as 'nvme0n1 T: 25°C W: 4%' format.

dashboard/src/ui/widgets/system.rs

@@ -263,7 +263,7 @@ impl SystemWidget {
                     }
                     
                     if !drive_details.is_empty() {
-                        format!("{} ({})", pool.name, drive_details.join(" "))
+                        format!("{} {}", pool.name, drive_details.join(" "))
                     } else {
                         pool.name.clone()
                     }