adding advanced features

[venmanyarun]

Description

Advanced Knowledge Features

• Web URL sources (crawl and index websites)
• API data sources (index REST APIs)
• Streaming ingestion for large datasets
• Hybrid search (combining semantic and keyword search)

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• [ x] New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Explain how to reproduce the testing environment.

• [ x] npm run test
• Specific tool test (e.g., npm run test:tools:fs)
• Manual testing (describe below)

Checklist:

• [x ] My code follows the style guidelines of this project
• [ x] I have performed a self-review of my own code
• [x ] I have commented my code, particularly in hard-to-understand areas
• [x ] I have made corresponding changes to the documentation
• [x ] My changes generate no new warnings (run npm run lint)
• [x ] I have added tests that prove my fix is effective or that my feature works
• [x ] New and existing unit tests pass locally with my changes

[sajeerzeji]

I have tested this and found few areas of improvements. Adding AI review comments as well.