Fixes 23223: Mentions from incidents/entities not showing in Notifications

[Rohit0301]

Describe your changes:

Problem:
Mentions made inside Incidents or Entities were not appearing in the Notifications → Mentions tab.

Root causes:

• The mentions API in Notifications was using a hard filter: type = conversation, which excluded Incident mentions.
• Incidents use type = task, and the Mentions tab logic was not handling that type.

Changes made:

1. Removed the type = conversation filter from the Mentions API call.

   • This allows mentions from Incidents, Conversations, and Entities to appear.

2. Mapped type task to conversation for rendering

   • Only for the Mentions tab UI, task-based mentions are treated as conversation types.
   • This prevents them from showing as “task assigned” notifications.

Fixes #23223

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.

[github-actions]

Hi there 👋 Thanks for your contribution!

The OpenMetadata team will review the PR shortly! Once it has been labeled as safe to test, the CI workflows
will start executing and we'll be able to make sure everything is working as expected.

Let us know if you need any help!

[github-actions]

The Python checkstyle failed.

Please run make py_format and py_format_check in the root of your repository and commit the changes to this PR.
You can also use pre-commit to automate the Python code formatting.

You can install the pre-commit hooks with make install_test precommit_install.

[github-actions]

The Python checkstyle failed.

Please run make py_format and py_format_check in the root of your repository and commit the changes to this PR.
You can also use pre-commit to automate the Python code formatting.

You can install the pre-commit hooks with make install_test precommit_install.

[github-actions]

Jest test Coverage

UI tests summary

Lines	Statements	Branches	Functions
	63.36% (46183/72890)	40.54% (21748/53647)	43.67% (6944/15901)

[sonarqubecloud]

Quality Gate passed for 'open-metadata-ui'

Issues
4 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 SonarQube Cloud