Add f7push webhook for support replies and ticket deep links.

OCS endpoint for support.f7cloud.ru, notification notifier, and ?ticket= URL opening in the client UI.

js/main.js

@@ -1589,6 +1589,10 @@
       .catch((e) => showError(e.message))
       .finally(() => {
         scheduleTicketsBoardPolling();
+        const ticketFromUrl = new URLSearchParams(window.location.search).get("ticket");
+        if (ticketFromUrl) {
+          void tryOpenTicket(ticketFromUrl.trim());
+        }
       });
   });
 })();