🧹 Clean up repository:

Remove unnecessary files and directories:
- Remove generated files (coverage, reports, cache)
- Remove temporary documentation
- Remove old workflow validation scripts
- Remove redundant shell scripts
- Keep only essential project files

Essential files kept:
- .github/workflows/ (CI/CD)
- config/ (test configuration)
- data/ (test data)
- schemas/ (API schemas)
- tests/ (test files)
- utils/ (utilities)
- images/ (README images)
- Core config files (pytest.ini, requirements.txt, etc.)

Author: SaahilParmar