feat: show who an Azure account signs in as, in Details on its row

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

internal/ui/panes/detail.go

@@ -47,6 +47,7 @@ type Detail struct {
 	versions []provider.Object // newest first; nil while unknown
 	note     string            // the user's note on what's shown
 	message  string            // shown instead of the hint when nothing is selected: an error
+	account  []provider.Attr   // shown instead of the hint on a provider's row: who it signs in as
 
 	offset int
 	w, h   int
@@ -76,6 +77,10 @@ func (d *Detail) Clear() {
 // selected, such as why an account has nothing to show; "" for the hint.
 func (d *Detail) SetMessage(s string) { d.message = s }
 
+// SetAccount sets the account shown on a provider's row when nothing is
+// selected; nil for the hint.
+func (d *Detail) SetAccount(fields []provider.Attr) { d.account = fields }
+
 // SetDescribing marks extra metadata as being fetched.
 func (d *Detail) SetDescribing() { d.describing, d.describeErr = true, nil }
 
@@ -191,6 +196,12 @@ func (d Detail) lines(st styles.Styles) []string {
 	muted := st.Muted.Render
 
 	if d.container == nil {
+		if d.message == "" && len(d.account) > 0 {
+			for _, a := range d.account {
+				field(a.Label, a.Value)
+			}
+			return out
+		}
 		if d.message != "" {
 			for _, l := range strings.Split(ansi.Hardwrap(d.message, max(1, inner-2), true), "\n") {
 				out = append(out, " "+st.Error.Render(l))