feat: add Open-Meteo weather forecast

hooks/use-forecast.ts

@@ -0,0 +1,16 @@
+"use client";
+
+import { useQuery } from "@tanstack/react-query";
+import { fetchForecast } from "@/lib/forecast-api";
+import { QUERY_GC_TIME } from "@/lib/constants";
+
+export function useForecast(latitude?: number, longitude?: number) {
+  return useQuery({
+    queryKey: ["forecast", latitude, longitude],
+    queryFn: ({ signal }) => fetchForecast(latitude as number, longitude as number, signal),
+    enabled: Number.isFinite(latitude) && Number.isFinite(longitude),
+    staleTime: 15 * 60 * 1000,
+    gcTime: QUERY_GC_TIME,
+    retry: 2,
+  });
+}