feat(mobile): hidden connection log panel for device-only diagnostics

Connection lifecycle events (probes, transport failures, resume decisions)
are mirrored into an in-memory trail that resets on every launch. A long
press on the connect-screen logo or the instances list opens a panel that
renders the trail with one-tap copy, so release builds can report the exact
probe sequence without a tethered debugger. Details reuse the already-masked
log payloads — no tokens or secrets are captured.

packages/ui/src/lib/i18n/messages/uk.ts

@@ -86,6 +86,11 @@ export const dict: Record<I18nKey, string> = {
   "mobile.instances.label.label": "Назва",
   "mobile.instances.label.placeholder": "Необовʼязкова назва",
   "mobile.instances.saveNew": "Зберегти інстанс",
+  "mobile.connectionDebug.title": "Журнал з'єднання",
+  "mobile.connectionDebug.copy": "Копіювати",
+  "mobile.connectionDebug.copied": "Скопійовано",
+  "mobile.connectionDebug.close": "Закрити",
+  "mobile.connectionDebug.empty": "Поки немає подій з'єднання.",
   "mobile.instances.status.connectedDirect": "Підключено · Локальна мережа",
   "mobile.instances.status.connectedRelay": "Підключено · Приватний relay",
   "mobile.instances.saveEdit": "Зберегти зміни",