redbear-power: show process count in tab bar

Tab bar now displays 'Process (42)' with live process count,
giving at-a-glance visibility into how many processes are tracked.

local/recipes/system/redbear-power/source/src/render.rs

@@ -354,6 +354,7 @@ fn mem_bar_line<'a>(
 /// with the active tab highlighted. Hotkeys `1`/`2`/`3`/`4` switch
 /// directly; `T` cycles through them in order.
 pub fn render_tab_bar<'a>(app: &'a App) -> Tabs<'a> {
+    let proc_count = app.processes.processes.len();
     let titles: Vec<Line<'a>> = [
         TabId::PerCpu,
         TabId::System,
@@ -366,7 +367,14 @@ pub fn render_tab_bar<'a>(app: &'a App) -> Tabs<'a> {
         TabId::Process,
     ]
     .iter()
-    .map(|t| Line::from(t.name()))
+    .map(|t| {
+        let name = t.name();
+        if matches!(t, TabId::Process) && proc_count > 0 {
+            Line::from(format!("{} ({})", name, proc_count))
+        } else {
+            Line::from(name)
+        }
+    })
     .collect();
     let selected = match app.current_tab {
         TabId::PerCpu => 0,