feat(API): Report unhandled app crashes to Sentry (#4548)

* SIGTERM/SIGINT should only be handled once

* move error-handling initialization to commands

* create a new `sleep` function in workflow utils

* detect crashes and report them to Sentry

packages/nodes-base/nodes/Discord/Discord.node.ts

@@ -7,6 +7,7 @@ import {
 	jsonParse,
 	NodeApiError,
 	NodeOperationError,
+	sleep,
 } from 'n8n-workflow';
 
 import { DiscordAttachment, DiscordWebhook } from './Interfaces';
@@ -244,7 +245,7 @@ export class Discord implements INodeType {
 					// remaining requests 0
 					// https://discord.com/developers/docs/topics/rate-limits
 					if (!+remainingRatelimit) {
-						await new Promise<void>((resolve) => setTimeout(resolve, resetAfter || 1000));
+						await sleep(resetAfter ?? 1000);
 					}
 
 					break;
@@ -255,7 +256,7 @@ export class Discord implements INodeType {
 					if (error.statusCode === 429) {
 						const retryAfter = error.response?.headers['retry-after'] || 1000;
 
-						await new Promise<void>((resolve) => setTimeout(resolve, +retryAfter));
+						await sleep(+retryAfter);
 
 						continue;
 					}