Add help screen, connection indicators, README and release builds (M7)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

internal/ui/downloads.go

@@ -194,6 +194,7 @@ func (v *downloadsView) refresh(ctx context.Context) {
 
 	v.app.post(func() {
 		var errs []string
+		v.app.SetService("SABnzbd", "", qerr)
 		if qerr != nil {
 			errs = append(errs, "SABnzbd: "+qerr.Error())
 		} else {
@@ -205,6 +206,7 @@ func (v *downloadsView) refresh(ctx context.Context) {
 			v.renderHistory()
 		}
 		for i, s := range v.sources {
+			v.app.SetService(s.name, "", arrs[i].err)
 			if arrs[i].err != nil {
 				errs = append(errs, s.name+": "+arrs[i].err.Error())
 				continue
@@ -387,7 +389,7 @@ func (v *downloadsView) renderHistory() {
 		case h.Failed():
 			status = "[red]" + status + "[-]"
 			if h.FailMessage != "" {
-				status += " [gray](" + tview.Escape(truncate(h.FailMessage, 28)) + ")[-]"
+				status += " [gray](" + tview.Escape(truncate(h.FailMessage, 60)) + ")[-]"
 			}
 		case h.Status == "Completed":
 			status = "[green]" + status + "[-]"