ListRepliableNotificationsTool
Lists active notifications that expose a free-form RemoteInput reply action (WhatsApp, Signal, Messenger, Slack, SMS, Gmail, etc.), read from NotificationStore.repliableSnapshot. Requires the listener service bound and notification listener access granted, else an error naming which precondition failed. Results are sorted most-recent-first and capped by limit (default 20, clamped 1-100). Each entry includes the app's display label (resolved via PackageManager, cached per call) alongside the notification's key, title, text, post time, and reply-action label/hint — everything ReplyToNotificationTool needs.