feat: lazysecrets list prints everything lazysecrets can find, for fzf and editor pickers (#70)

`lazysecrets list` prints every source, vault and secret lazysecrets can find, one per line, for fzf, editor pickers and scripts: what Go to searches, without the TUI. What's cached prints at once; what's missing or older than `--max-age` loads in the background and streams in. It stops when the reader goes (a pick in fzf), saving what it loaded.

- Text: kind, mark (✗/⚠, ★, ◷ and the provider icon), name, status (why it couldn't be read, or expired / expires in 12d), note, account and link, tab-separated; kind first and account and link last, so new fields go between. Coloured from the theme; `--color never`, `--icons=false`, `--stars=false`, `--recent`, `--notes=false`, `--expiry=false`.
- `--format json`: an object per line, with starred, recent, lastUsed and uses, expires, enabled, note, reference and url too.
- `--kind` lists only some kinds, and doesn't load lists only other kinds need; `--cached` loads nothing.
- `lazysecrets open --action go|copy|show` skips the "what to do" menu and ends in the list, like Go to; `open` and `get` take `--account`, the account list printed, rather than asking which.
- The cache file moved to `internal/cachefile`: saves merge with the file under a lock, so list and the TUI don't undo each other.
- `ui.recentIcon` marks items used lately with ◷ in the TUI's lists too; Recent now means the last 90 days.
- --demo has stars, notes, recent use, and expired, expiring and disabled secrets.
- docs/integration.md documents get, list and an fzf picker; docs/links.md is docs/sharing.md.

Reviewed-on: #70
Co-authored-by: Karl-Einar Bergstrøm <karl-einarb@outlook.com>

internal/ui/app/favourites_test.go

@@ -6,6 +6,7 @@ import (
 	"slices"
 	"strings"
 	"testing"
+	"time"
 
 	tea "charm.land/bubbletea/v2"
 	"charm.land/lipgloss/v2"
@@ -394,7 +395,7 @@ func TestStarWhileFiltering(t *testing.T) {
 	t.Parallel()
 	d := newDriver(t)
 	d.keys("3", "/")
-	for _, r := range "api" {
+	for _, r := range "api-k" {
 		d.send(tea.KeyPressMsg{Code: r, Text: string(r)})
 	}
 	d.send(tea.KeyPressMsg{Code: 'f', Mod: tea.ModCtrl})
@@ -434,3 +435,20 @@ func TestStarIsPerAccount(t *testing.T) {
 		t.Errorf("favourites should list alice's star only: %q", labels)
 	}
 }
+
+func TestRecentIcon(t *testing.T) {
+	t.Parallel()
+	mem, _ := store.Load("")
+	_ = mem.Use("lazysecrets://azure/"+kv+"/secrets/api-key", time.Now(), func(*store.Node) {})
+	d := newDriverOpts(t, Options{Store: mem, RecentIcon: true})
+	d.keys("3")
+	scr := d.screen()
+	if !strings.Contains(scr, "◷ api-key") || strings.Contains(scr, "◷ db-password") {
+		t.Errorf("want ◷ on api-key only:\n%s", scr)
+	}
+	off := newDriverOpts(t, Options{Store: mem})
+	off.keys("3")
+	if strings.Contains(off.screen(), "◷") {
+		t.Errorf("◷ without ui.recentIcon:\n%s", off.screen())
+	}
+}