feat: add complete config-converter-cli implementation

- Add all source files and tests
- Fix CI linting and type checking issues
- Ensure code passes ruff and mypy checks

.gitignore

@@ -3,139 +3,32 @@ __pycache__/
 *.py[cod]
 *$py.class
 
-# C extensions
-*.so
-
 # Distribution / packaging
-.Python
-build/
-develop-eggs/
-dist/
-downloads/
-eggs/
-.eggs/
-lib/
-lib64/
-parts/
-sdist/
-var/
-wheels/
-pip-wheel-metadata/
-share/python-wheels/
 *.egg-info/
-.installed.cfg
+build/
+dist/
 *.egg
-MANIFEST
 
-# PyInstaller
+# Testing
-*.manifest
-*.spec
-
-# Installer logs
-pip-log.txt
-pip-delete-this-directory.txt
-
-# Unit test / coverage reports
-htmlcov/
-.tox/
-.nox/
-.coverage
-.coverage.*
-.cache
-nosetests.xml
-coverage.xml
-*.cover
-*.py,cover
-.hypothesis/
 .pytest_cache/
-.venv/
+.coverage
-venv/
+htmlcov/
-ENV/
-env/
-.venv/
 
-# Translations
+# Environment
-*.mo
-*.pot
-
-# Django stuff:
-*.log
-local_settings.py
-db.sqlite3
-db.sqlite3-journal
-
-# Flask stuff:
-instance/
-.webassets-cache
-
-# Scrapy stuff:
-.scrapy
-
-# Sphinx documentation
-docs/_build/
-
-# PyBuilder
-target/
-
-# Jupyter Notebook
-.ipynb_checkpoints
-
-# IPython
-profile_default/
-ipython_config.py
-
-# pyenv
-.python-version
-
-# pipenv
-Pipfile.lock
-
-# PEP 582
-__pypackages__/
-
-# Celery stuff
-celerybeat-schedule
-celerybeat.pid
-
-# SageMath parsed files
-*.sage.py
-
-# Environments
 .env
-.venv
+.venv/
-env/
 venv/
 ENV/
-env.bak/
-venv.bak/
 
-# Spyder project settings
+# IDE
-.spyderproject
-.spyproject
-
-# Rope project settings
-.ropeproject
-
-# mkdocs documentation
-/site
-
-# mypy
-.mypy_cache/
-.dmypy.json
-dmypy.json
-
-# Pyre type checker
-.pyre/
-
-# IDEs
 .vscode/
 .idea/
 *.swp
 *.swo
-*~
-.DS_Store
 
-# Project specific
+# MyPy
-*.bak
+.mypy_cache/
-temp/
+.dmypy.json
-output/
+
+# Ruff
+.ruff_cache/