First start: create the config file and open the Config view

Without a config file arr-tui refused to start. It now creates an empty
one (private, with its directory) and opens the Config view. A service
with neither address nor key is "not configured", which validation
allows: its client returns ErrNotConfigured without a request, its
indicator stays grey, it is logged once as information, and its lists
say so instead of showing errors.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019reK4DUGYqDUjniWYJvwUW

internal/ui/library.go

@@ -363,8 +363,11 @@ func (v *libraryView) reloadPane(p *libPane) {
 				defer v.loadSeriesFiles(false)
 			}
 			if err != nil {
-				// Keep showing the last good list; say why it is stale.
-				v.app.SetMessage("[red]" + kind.service() + ": " + tview.Escape(err.Error()))
+				// Keep showing the last good list; say why it is stale. A service
+				// that is not set up says so in its list instead.
+				if !notConfigured(err) {
+					v.app.SetMessage("[red]" + kind.service() + ": " + tview.Escape(err.Error()))
+				}
 			} else {
 				p.all, p.loaded = items, true
 			}
@@ -418,6 +421,8 @@ func (v *libraryView) renderPane(p *libPane) {
 	}
 	placeholder := "Nothing matches the filter"
 	switch {
+	case notConfigured(p.err):
+		placeholder = p.kind.service() + " is not configured (Config view, F6)"
 	case p.err != nil && !p.loaded:
 		placeholder = "Could not load, press r to retry"
 	case !p.loaded: