feat(tv): add user switching from settings

hooks/useTVUserSwitchModal.ts

@@ -0,0 +1,42 @@
+import { useCallback } from "react";
+import useRouter from "@/hooks/useAppRouter";
+import { tvUserSwitchModalAtom } from "@/utils/atoms/tvUserSwitchModal";
+import type {
+  SavedServer,
+  SavedServerAccount,
+} from "@/utils/secureCredentials";
+import { store } from "@/utils/store";
+
+interface UseTVUserSwitchModalOptions {
+  onAccountSelect: (account: SavedServerAccount) => void;
+}
+
+export function useTVUserSwitchModal() {
+  const router = useRouter();
+
+  const showUserSwitchModal = useCallback(
+    (
+      server: SavedServer,
+      currentUserId: string,
+      options: UseTVUserSwitchModalOptions,
+    ) => {
+      // Need at least 2 accounts (current + at least one other)
+      if (server.accounts.length < 2) {
+        return;
+      }
+
+      store.set(tvUserSwitchModalAtom, {
+        serverUrl: server.address,
+        serverName: server.name || server.address,
+        accounts: server.accounts,
+        currentUserId,
+        onAccountSelect: options.onAccountSelect,
+      });
+
+      router.push("/(auth)/tv-user-switch-modal");
+    },
+    [router],
+  );
+
+  return { showUserSwitchModal };
+}