docs(readme): add project logo to README.md

What does this MR do and why?

This Merge Request adds a logo to the project repository. The goal is to enhance the project's visual identity, improve branding, and make the repository more visually engaging for contributors and users.

The logo is included in a new /assets/ directory and integrated at the top of the README.md. This helps improve discoverability, credibility, and community engagement by giving the project a recognizable face.

References

Closes #25

Screenshots or Screen Recordings

Before	After

How to Test or Validate Locally

• Pull this branch.
• Open README.md in your local Markdown viewer or on the repository homepage.
• Confirm the logo displays correctly with proper alignment and scaling.
• Check that the /assets/ directory contains the logo image.

MR Acceptance Checklist

Use this checklist to ensure the MR meets project quality and contribution standards.

• Code is clear, concise, and follows project conventions
• Unit or integration tests are updated or added (if applicable)
• Documentation is updated (if applicable)
• Functionality is tested manually or automatically
• Changes do not introduce regressions or side effects