test(ui): fix ingestion bot playwright

[karanh37]

Describe your changes:

Fixes

I worked on ... because ...

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.

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Summary by Gitar

• Test reliability fix:
  • Replaced DOM loader waiting with network response waiting in playwright/utils/domain.ts to eliminate race conditions
• Removed helper function:
  • Deleted waitForAssetModalInitialLoad in favor of Playwright's page.waitForResponse() pattern
• Updated test utilities:
  • Applied fix to addAssetsToDomain, addServicesToDomain, and addAssetsToDataProduct functions

_{This will update automatically on new commits.}

---

[github-actions]

Jest test Coverage

UI tests summary

Lines	Statements	Branches	Functions
	64.3% (50893/79150)	41.89% (24754/59097)	45.38% (7807/17204)

[sonarqubecloud]

Quality Gate passed for 'open-metadata-ui'

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 SonarQube Cloud

[github-actions]

Failed to cherry-pick changes to the 1.11.4 branch.
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