Fixes #17718 : Notification Debuggability

[Siddhanttimeline]

Describe your changes:

Fixes #17718

Created below APIs:

1. Diagnostic info by eventSubscription ID/Name.
2. Failed events by eventSubscription ID/Name
3. List all failed events
4. List destinations by eventSubscription ID/Name.
5. List Successfully sent changeEvents by eventSubscription ID/Name.
6. listEvents API, filtered by 'failed,' 'successful,' and 'unprocessed' events.

Failed events can further be filtered by source (errors directed toward the publisher or subscriber).

Type of change:

• Bug fix
• Improvement
• New feature
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation

Checklist:

• I have read the CONTRIBUTING document.
• My PR title is Fixes <issue-number>: <short explanation>
• I have commented on my code, particularly in hard-to-understand areas.
• For JSON Schema changes: I updated the migration scripts or explained why it is not needed.

[notion-workspace]

Notification Debuggability

[sonarqubecloud]

Quality Gate passed for 'open-metadata-ingestion'

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud