add adr section

[khalilCodeX]

Description

Type of Change

• Documentation update

Related Issues

N/A

Changes Made

• Create ADR section
• Update readme roadmap list

Testing

• Unit tests pass (pytest tests/)
• Lint passes (ruff check .)
• Format passes (ruff format --check .)
• Manual testing completed

Screenshots (if applicable)

Checklist

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