[OMEGA-400] import-kb | add ASI Cloud embeddings support

[paul-v-snet]

Description

• Added ASI Cloud support as an embedding provider (both for the initial knowledge import and the src/rag.py module)*
• Updated all relevant documentation in docs/
• Updated autotests
• Added a new config value - embeddingModel
• Updated the import-kb dependency to 0.2.4**

*This PR supersedes #333
**0.2.4 has not been published yet. This PR must be merged only after import-kb version 0.2.4 is published.

How Has This Been Tested?

Tested with the updated import-kb version 0.2.4. Knowledge imports were successfully completed using all three supported embedding providers: Local, OpenAI, and ASI Cloud. The same providers were successfully tested with the src/rag.py module.

Checklist

• PR contains autogenerated code
• Self-review completed
• Test scenarios above are passed with the version of the code from PR

[paul-v-snet]

The tests are failing because the new import-kb version has not been published yet - this is expected and does not block the review.