feat: add ntfy integration (#2900)

Co-authored-by: Meier Lukas <meierschlumpf@gmail.com>

packages/request-handler/src/notifications.ts

@@ -0,0 +1,20 @@
+import dayjs from "dayjs";
+
+import type { IntegrationKindByCategory } from "@homarr/definitions";
+import type { Notification } from "@homarr/integrations";
+import { createIntegrationAsync } from "@homarr/integrations";
+
+import { createCachedIntegrationRequestHandler } from "./lib/cached-integration-request-handler";
+
+export const notificationsRequestHandler = createCachedIntegrationRequestHandler<
+  Notification[],
+  IntegrationKindByCategory<"notifications">,
+  Record<string, never>
+>({
+  async requestAsync(integration) {
+    const integrationInstance = await createIntegrationAsync(integration);
+    return await integrationInstance.getNotificationsAsync();
+  },
+  cacheDuration: dayjs.duration(5, "minutes"),
+  queryKey: "notificationsJobStatus",
+});