Unify AI integration

[mabderrahim]

Description

Added Support for Unify AI with the help of which every Mind DB's user would be able to use all the AI Models (open sourced and closed source) with 1 single API Key.

Type of change

• ⚡ New feature (non-breaking change which adds functionality)

Verification Process

To ensure the changes are working as expected:

• Test Location:
  • mindsdb/mindsdb/integrations/handlers/unify_handler/test_unify_handler.py
  • mindsdb/tests/unit/ml_handlers/test_unify.py
• Verification Steps: Outline the steps or queries needed to validate the change. Include any data, configurations, or actions required to reproduce or see the new functionality.

Additional Media:

• I have attached a brief loom video or screenshots showcasing the new functionality or change.
• Walkthrough of the integration : https://drive.google.com/file/d/1g3f4DstYRvSKBVrXCI-v6xDqm-duDNVT/view

Checklist:

• My code follows the style guidelines(PEP 8) of MindsDB.
• I have appropriately commented on my code, especially in complex areas.
• Necessary documentation updates are either made or tracked in issues.
• Relevant unit and integration tests are updated or added.

[mindsdbadmin]

All contributors have signed the CLA ✍️ ✅
_{Posted by the CLA Assistant Lite bot.}

[herjanice]

I have read the CLA Document and I hereby sign the CLA

[mabderrahim]

I have read the CLA Document and I hereby sign the CLA

[mabderrahim]

recheck

[mohamed-abderrahim3]

I have read the CLA Document and I hereby sign the CLA

[ZoranPandovski]

Can you please solve the flake8 warnings https://github.com/mindsdb/mindsdb/actions/runs/11082935834/job/30851728109?pr=9727#step:6:114