Fix sidebar repaint and command restart navigation

internal/app/tree.go

@@ -192,9 +192,6 @@ func currentTabFlat(children []*Child, focusID string) []*Child {
 func sidebarNavList(children []*Child, activeAgentID string) []*Child {
 	out := make([]*Child, 0, 8)
 	for _, c := range processList(children) {
-		if c.Status() != StatusRunning {
-			continue
-		}
 		out = append(out, c)
 	}
 	for _, c := range visibleAgentTree(children, activeAgentID) {
@@ -208,9 +205,15 @@ func sidebarNavList(children []*Child, activeAgentID string) []*Child {
 // wrapping at both ends. Empty when there's nothing else to land on.
 func nextChildID(children []*Child, focusID, activeAgentID string, step int) string {
 	flat := sidebarNavList(children, activeAgentID)
-	if len(flat) < 2 {
+	if len(flat) == 0 {
 		return ""
 	}
+	if len(flat) == 1 {
+		if flat[0].ID == focusID {
+			return ""
+		}
+		return flat[0].ID
+	}
 	idx := -1
 	for i, c := range flat {
 		if c.ID == focusID {