Refactor notification event payloads and listener naming

app/Actions/Notifications/NotificationEventPayload.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Actions\Notifications;
+
+use App\Enums\NotificationEventType;
+use Illuminate\Contracts\Support\Arrayable;
+
+/**
+ * @extends Arrayable<string, mixed>
+ */
+interface NotificationEventPayload extends Arrayable
+{
+    public function eventType(): NotificationEventType;
+
+    public function projectId(): int;
+
+    /**
+     * @return array<string, scalar|null>
+     */
+    public function deliveryMetadata(): array;
+
+    /**
+     * @return array<string, string>
+     */
+    public function discordTemplateVariables(): array;
+}