refactor: move status filter from per-tab pills to global search bar

- Remove FilterTabs from inside each booking tab
- Add compact status chips (Все/Новая/Связались/Подтверждено/Отказ)
  below the search bar — one global filter for all tabs
- Filter chips hidden during active text search
- Status filter toggles on click (click again to deselect)
- GenericBookingsList accepts filter as prop instead of managing internally

src/app/admin/bookings/McRegistrationsTab.tsx

@@ -2,7 +2,7 @@
 
 import { useState, useEffect, useMemo } from "react";
 import { adminFetch } from "@/lib/csrf";
-import { type BaseBooking, type BookingGroup } from "./types";
+import { type BookingFilter, type BaseBooking, type BookingGroup } from "./types";
 import { LoadingSpinner } from "./BookingComponents";
 import { GenericBookingsList } from "./GenericBookingsList";
 
@@ -13,7 +13,7 @@ interface McRegistration extends BaseBooking {
 interface McSlot { date: string; startTime: string }
 interface McItem { title: string; slots: McSlot[] }
 
-export function McRegistrationsTab() {
+export function McRegistrationsTab({ filter }: { filter: BookingFilter }) {
   const [regs, setRegs] = useState<McRegistration[]>([]);
   const [mcDates, setMcDates] = useState<Record<string, string>>({});
   const [loading, setLoading] = useState(true);
@@ -73,6 +73,7 @@ export function McRegistrationsTab() {
     <GenericBookingsList<McRegistration>
       items={regs}
       endpoint="/api/admin/mc-registrations"
+      filter={filter}
       onItemsChange={setRegs}
       groups={groups}
     />