feat: l for details; details for vaults, scopes and files; getting started; the age of cached lists (#17)

- `l` goes to the details of what is selected; `enter` still drills in
- vaults, scopes and files show their details (vault settings from the listing, no extra requests)
- with nothing to show, the right pane says how to get started
- a list from the cache says how old it is while it reloads
- what is expiring, in the status pane and `lazysecrets expiring`
- when access is refused, what to check, for Azure and Databricks
- no group list in an account's details, and no Microsoft Graph call for it

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

internal/ui/panes/list.go

@@ -34,6 +34,9 @@ type List[T any] struct {
 	Empty   string // shown when loaded with no items
 	Loading bool
 	Err     error
+	// Age says how old the items are ("2h ago") while they reload, by
+	// the counter.
+	Age string
 
 	item    Item[T]
 	items   []T
@@ -88,6 +91,7 @@ func (l *List[T]) SetError(err error) {
 func (l *List[T]) Refresh() {
 	l.Loading = true
 	l.Err = nil
+	l.Age = ""
 }
 
 func (l *List[T]) SetLoading() {
@@ -330,7 +334,7 @@ func (l List[T]) View(st styles.Styles, focused bool, spin string) string {
 	case l.Loading && len(l.items) == 0:
 		body = append(body, " "+spin+" loading…")
 	case l.Err != nil:
-		for _, line := range strings.Split(ansi.Wrap(l.Err.Error(), inner-1, " -/"), "\n") {
+		for _, line := range wrapLines(l.Err.Error(), inner-1) {
 			body = append(body, st.Error.Render(" "+line))
 		}
 	case len(l.visible) == 0 && len(l.items) > 0:
@@ -369,6 +373,9 @@ func (l List[T]) View(st styles.Styles, focused bool, spin string) string {
 	if len(l.visible) > 0 {
 		counter = fmt.Sprintf("%d of %d", l.cursor+1, len(l.visible))
 	}
+	if l.Loading && l.Age != "" && len(l.items) > 0 {
+		counter = "cached " + l.Age + " · " + counter
+	}
 	return BoxCounted(st, title, "", counter, body, l.w, l.h, focused)
 }
 
@@ -386,3 +393,22 @@ func (l *List[T]) scroll() {
 	}
 	l.offset = max(0, min(l.offset, len(l.visible)-rows))
 }
+
+// wrapLines wraps text to width, line by line; a "• " item's further
+// lines line up under its text.
+func wrapLines(text string, width int) []string {
+	var out []string
+	for _, line := range strings.Split(text, "\n") {
+		indent := ""
+		if strings.HasPrefix(line, "• ") {
+			indent = "  "
+		}
+		for i, l := range strings.Split(ansi.Wrap(line, max(1, width-len(indent)), " -/"), "\n") {
+			if i > 0 {
+				l = indent + l
+			}
+			out = append(out, l)
+		}
+	}
+	return out
+}