awg-ctrl: commands for the secret path, connection log, metrics, hub, check

The new features were only reachable from the web panel. awg-ctrl now has:

- panel [path new|off|<path>] — the panel address; a new random, own or no
  secret path (cli.env, panel restarted, VPN untouched);
- log [<search>] [-n N] and log seen — the connection log of this server and
  who was online when, with sen:// device and master key names from ui.db when
  the panel is on the same machine;
- metrics [token|revoke] — the metrics-only token for an external Prometheus,
  printed once with a ready prometheus.yml fragment that carries the path;
- hub [legacy on|off|auto] — nodes with and without the pre-upgrade signature
  and the HUB_LEGACY mode;
- check — what this server gives away: shared pre-randomization VPN values or
  no own I1, no secret path, plain-HTTP panel and subscription, the generic
  "sen"/"awg-node" certificate names, an open hub — each with the fix.

The interactive menu gets items 10–13: panel address and path, connection log,
who was online, and the check. Columns are padded by runes, not bytes, so
Cyrillic names line up.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013bNGYiDst62wH3ZGTRPFLJ

internal/cli/cmds.go

@@ -495,9 +495,15 @@ func (c *CLI) interactiveMenu() {
   %s  Переустановить
   %s  Удалить
   %s
+  %s  Адрес панели и секретный путь
+  %s  Журнал подключений
+  %s  Кто когда был в VPN
+  %s  Проверка скрытности
+  %s
   %s  Выход
 
-`, bold("1"), bold("2"), bold("3"), bold("4"), sep, bold("5"), bold("6"), sep, bold("7"), bold("8"), bold("9"), sep, bold("0"))
+`, bold("1"), bold("2"), bold("3"), bold("4"), sep, bold("5"), bold("6"), sep, bold("7"), bold("8"), bold("9"), sep,
+			bold("10"), bold("11"), bold("12"), bold("13"), sep, bold("0"))
 	}
 	for {
 		printMenu()
@@ -528,6 +534,14 @@ func (c *CLI) interactiveMenu() {
 			c.runInstaller("reinstall", true)
 		case "9":
 			c.runInstaller("uninstall", true)
+		case "10":
+			c.panelMenu()
+		case "11":
+			c.logCmd(nil)
+		case "12":
+			c.logCmd([]string{"seen"})
+		case "13":
+			c.checkCmd()
 		case "0":
 			os.Exit(0)
 		default: