fix: organization creation response handling and add ID validation

[kushalshit27]

🔧 Changes

Root cause:
After the node-auth0 v4→v5 upgrade, client.organizations.create() changed from returning { data: org } to returning org directly. The organizations handler was the only one still destructuring { data: created }, causing created to be undefined — hence TypeError: Cannot read properties of undefined (reading 'id') when it tried to use created.id to add connections.

Fixed:

• OrganizationsHandler.createOrganization() to correctly extract the created organization from the API response. The client method now returns the organization object directly instead of a nested { data } structure.
• Added error handling to validate that the organization ID is present in the response before proceeding with connection/grant associations. If the ID is missing, an error is logged and the response is returned early to prevent downstream failures.

📚 References

• Organization import with connections crashes with TypeError after v8.23.0 (node-auth0 v4→v5 upgrade) #1353

🔬 Testing

• Existing unit tests in test/tools/auth0/handlers/organizations.tests.js have been updated to verify the corrected response structure from the organizations client.
• Three test cases now mock the organizations.create() response as the unwrapped data object, consistent with the implementation change.

📝 Checklist

• All new/changed/fixed functionality is covered by tests (or N/A)
• I have added documentation for all new/changed functionality (or N/A)

[codecov-commenter]

Codecov Report

❌ Patch coverage is 66.66667% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 80.08%. Comparing base (d12a2ff) to head (7c6b41e).

Files with missing lines	Patch %	Lines
src/tools/auth0/handlers/organizations.ts	66.66%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1365      +/-   ##
==========================================
- Coverage   80.10%   80.08%   -0.03%     
==========================================
  Files         152      152              
  Lines        6213     6216       +3     
  Branches     1290     1291       +1     
==========================================
+ Hits         4977     4978       +1     
- Misses        702      703       +1     
- Partials      534      535       +1     

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[ankita10119]

Instead of silently returning here, should we not throw the error?
As the current behaviour creates partial state(org exists, connection missing) with no error propagation