[MM-56757] Expand NotificationsLog to include websocket and email, adding much more varied logging across the entire process (#26273)

* [MM-56757] Expand NotificationsLog to include websocket and email, adding much more varied logging across the entire process

* Rework the status/notify prop calls

* Avoid some repetition in the logging calls

* Fix one log

* Wrap error

---------

Co-authored-by: Mattermost Build <build@mattermost.com>

server/channels/api4/system.go

@@ -631,15 +631,19 @@ func pushNotificationAck(c *Context, w http.ResponseWriter, r *http.Request) {
 	err := c.App.SendAckToPushProxy(&ack)
 	if ack.IsIdLoaded {
 		if err != nil {
-			// Log the error only, then continue to fetch notification message
 			c.App.NotificationsLog().Error("Notification ack not sent to push proxy",
-				mlog.String("ackId", ack.Id),
-				mlog.String("type", ack.NotificationType),
-				mlog.String("postId", ack.PostId),
-				mlog.String("status", err.Error()),
+				mlog.String("type", model.TypePush),
+				mlog.String("status", model.StatusServerError),
+				mlog.String("reason", model.ReasonServerError),
+				mlog.String("ack_id", ack.Id),
+				mlog.String("push_type", ack.NotificationType),
+				mlog.String("post_id", ack.PostId),
+				mlog.String("ack_type", ack.NotificationType),
+				mlog.String("device_type", ack.ClientPlatform),
+				mlog.Int("received_at", ack.ClientReceivedAt),
+				mlog.Err(err),
 			)
 		}
-
 		// Return post data only when PostId is passed.
 		if ack.PostId != "" && ack.NotificationType == model.PushTypeMessage {
 			if _, appErr := c.App.GetPostIfAuthorized(c.AppContext, ack.PostId, c.AppContext.Session(), false); appErr != nil {