fixed

frontend/src/hooks/usePomodoro.ts

@@ -0,0 +1,27 @@
+import { useCallback, useEffect, useState } from "react";
+import { api, PomodoroStatus } from "../api/client";
+
+export function usePomodoro(pollMs = 1000) {
+  const [status, setStatus] = useState<PomodoroStatus | null>(null);
+  const [error, setError] = useState<string | null>(null);
+
+  const refresh = useCallback(async () => {
+    try {
+      const data = await api.pomodoroStatus();
+      setStatus(data);
+      setError(null);
+    } catch (err) {
+      setError(err instanceof Error ? err.message : "Ошибка загрузки таймера");
+    }
+  }, []);
+
+  useEffect(() => {
+    refresh().catch(console.error);
+    const timer = setInterval(() => {
+      refresh().catch(console.error);
+    }, pollMs);
+    return () => clearInterval(timer);
+  }, [refresh, pollMs]);
+
+  return { status, error, refresh };
+}