feat: human error states, operator toasts and a queue/origin view in the omp UI

- classify transport and API failures into a short state with the next step
- count undelivered messages and show them next to the sent counter
- toast on owner paired, connection recovered and reply not delivered (throttled)
- second status line previews the next queued turns
- host spinner names the Telegram prompt while its turn runs
- sanitize every Telegram-controlled string that reaches the widget

lib/updates.ts

@@ -850,6 +850,7 @@ export function createTelegramPairedUpdateRuntime<
       setAllowedUserId: deps.setAllowedUserId,
       persistConfig: deps.persistConfig,
       updateStatus: deps.updateStatus,
+      onPaired: deps.onPaired,
     }).pairIfNeeded,
     answerCallbackQuery: deps.answerCallbackQuery,
     answerGuestQuery: deps.answerGuestQuery,