Fix high prio recommendations, add error / health screen

tui_test.go

@@ -1732,3 +1732,26 @@ func TestPeopleMetadataUsesColoredHandles(t *testing.T) {
 		t.Fatal("people handles do not use the deterministic author color")
 	}
 }
+
+func TestDashboardFrameDoesNotChangeWhenBackgroundRefreshStarts(t *testing.T) {
+	m := NewApp(&recordingService{}, "", "", false, 50, time.Minute)
+	m.screen, m.loading, m.width, m.height = dashboardScreen, false, 100, 30
+	m.lastRefresh = time.Date(2026, 7, 28, 12, 0, 0, 0, time.Local)
+	m.details = PRDetails{
+		PullRequest: PullRequest{
+			ID: "pr", Owner: "o", Repository: "r", RepoWithOwner: "o/r",
+			Number: 1, Title: "Stable dashboard", Author: "alice",
+		},
+		BaseRef: "main", HeadRef: "feature",
+	}
+	before := m.View()
+	updated, _ := m.Update(tickMsg(time.Now()))
+	m = updated.(App)
+	after := m.View()
+	if !m.loading {
+		t.Fatal("background refresh did not start")
+	}
+	if after != before {
+		t.Fatal("dashboard frame changed solely because a background refresh started")
+	}
+}