fix: reduce idle interval indicator work

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## 26.1.9
+- Reduced idle CPU usage and energy impact by changing the interval indicator from a permanent 60 FPS timer to a 1-second update cadence.
+- Reset the interval indicator cleanly when the refresh interval changes or when the indicator is hidden.
+
 ## 26.1.8
 - Fixed a crash in `PingService` caused by concurrent mutation of shared ping state from multiple async ping tasks.
 - Moved ping state tracking and reboot suppression windows into an actor so ping success/failure handling is serialized safely.

Sources/Views/ServerDetailView.swift

@@ -29,7 +29,7 @@ struct ServerDetailView: View {
     @State private var progress: Double = 0
     @State private var showRestartSheet = false
     @State private var restartFeedback: ServerActionFeedback?
-    let timer = Timer.publish(every: 1.0 / 60.0, on: .main, in: .common).autoconnect()
+    private let indicatorTimer = Timer.publish(every: 1, on: .main, in: .common).autoconnect()
     
     var body: some View {
         VStack(spacing: 0) {
@@ -85,13 +85,21 @@ struct ServerDetailView: View {
                 .padding()
             }
         }
-        .onReceive(timer) { _ in
+        .onReceive(indicatorTimer) { _ in
             guard showIntervalIndicator else { return }
-            withAnimation(.linear(duration: 1.0 / 60.0)) {
+            withAnimation(.linear(duration: 1)) {
-                progress += 1.0 / (Double(refreshInterval) * 60.0)
+                progress += 1.0 / Double(refreshInterval)
                 if progress >= 1 { progress = 0 }
             }
         }
+        .onChange(of: refreshInterval) { _, _ in
+            progress = 0
+        }
+        .onChange(of: showIntervalIndicator) { _, isVisible in
+            if !isVisible {
+                progress = 0
+            }
+        }
         .sheet(isPresented: $showRestartSheet) {
             RestartConfirmationSheet(
                 hostname: server.hostname,