refactor(core): Instrument multi-main to report failures to renew lea…

…se (#7970)

## Summary
Instrument multi-main to report failures to renew the lease

https://linear.app/n8n/issue/PAY-1105
...

#### How to test the change:
1. ...


## Issues fixed
Include links to Github issue or Community forum post or **Linear
ticket**:
> Important in order to close automatically and provide context to
reviewers

...


## Review / Merge checklist
- [ ] PR title and summary are descriptive. **Remember, the title
automatically goes into the changelog. Use `(no-changelog)` otherwise.**
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- [ ] [Docs updated](https://github.com/n8n-io/n8n-docs) or follow-up
ticket created.
- [ ] Tests included.
> A bug is not considered fixed, unless a test is added to prevent it
from happening again. A feature is not complete without tests.
  >
> *(internal)* You can use Slack commands to trigger [e2e
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or [deploy test
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packages/cli/src/services/orchestration/main/MultiMainSetup.ee.ts

@@ -3,6 +3,7 @@ import { Service } from 'typedi';
 import { TIME } from '@/constants';
 import { SingleMainSetup } from '@/services/orchestration/main/SingleMainSetup';
 import { getRedisPrefix } from '@/services/redis/RedisServiceHelper';
+import { ErrorReporterProxy as EventReporter } from 'n8n-workflow';
 
 @Service()
 export class MultiMainSetup extends SingleMainSetup {
@@ -79,6 +80,10 @@ export class MultiMainSetup extends SingleMainSetup {
 			if (config.getEnv('multiMainSetup.instanceType') === 'leader') {
 				this.emit('leadershipChange', leaderId); // stop triggers, pruning, etc.
 
+				EventReporter.report('[Multi-main setup] Leader failed to renew leader key', {
+					level: 'info',
+				});
+
 				config.set('multiMainSetup.instanceType', 'follower');
 			}
 

packages/workflow/src/ErrorReporterProxy.ts

@@ -33,5 +33,7 @@ export const error = (e: unknown, options?: ReportingOptions) => {
 	if (toReport) instance.report(toReport, options);
 };
 
+export const report = error;
+
 export const warn = (warning: Error | string, options?: ReportingOptions) =>
 	error(warning, { level: 'warning', ...options });

packages/workflow/src/errors/application.error.ts

@@ -1,7 +1,7 @@
 import callsites from 'callsites';
 import type { Event } from '@sentry/node';
 
-type Level = 'warning' | 'error' | 'fatal';
+type Level = 'warning' | 'error' | 'fatal' | 'info';
 
 export type ReportingOptions = {
 	level?: Level;