Enhancement: Define KRAI docs structure

[Oleksandr123234]

Current Functionality

Currently, we have no documentation for the project.

Current Limitations

No places to find guidelines.

Proposed Improvement

Write documentation for the project.

Component

Documentation

Impact Level

Low (Minor quality of life improvement)

Expected Benefits

Better user experience.

Implementation Examples

No response

Compatibility Considerations

• [ ] This would be a breaking change
• [ ] This requires new dependencies
• [ ] This affects configuration files
• [ ] This changes command line interface
• [ ] This maintains backward compatibility
• [ ] This improves existing APIs

Testing Considerations

No response

Additional Context

The goal of this task is to fill in the documentation project with content.