add webhook support

packages/server/src/notifiers/notifiers.ts

@@ -0,0 +1,17 @@
+import type { DocumentUpsertEvent } from '@morten-olsen/fluxcurrent-core/services/documents/documents.schemas.ts';
+
+import type { Notifier } from './notifier.types.ts';
+
+class Notifiers {
+  #notifiers: Notifier[];
+
+  constructor(notifiers: Notifier[]) {
+    this.#notifiers = notifiers;
+  }
+
+  public upsert = async (event: DocumentUpsertEvent) => {
+    await Promise.all(this.#notifiers.map((notifier) => notifier.upsert(event)));
+  };
+}
+
+export { Notifiers };