Refactor .gitignore to streamline file exclusions and improve organization

- Consolidated and updated entries to exclude unnecessary files and directories, including build artifacts, logs, and environment files.
- Added specific patterns for temporary editor files and OS-specific files to reduce clutter in the repository.
- Enhanced clarity by grouping related exclusions, ensuring a cleaner and more maintainable .gitignore structure.

.gitignore

@@ -1,140 +1,35 @@
-# Byte-compiled / optimized / DLL files
-__pycache__/
-*.py[cod]
-*$py.class
+# dirs
+build/
+data/
+data_backup/
+exps/
+summary/
 
-# C extensions
-*.so
 
-# Distribution / packaging
+# Most frequently used
+*.log              
+__pycache__/       
+*.py[cod]    
+.vscode/           # VS Code
+.idea/             # PyCharm
+*.pth              # PyTorch models
+*.csv              
+
+
+# Python
+*$py.class
+*.so
 .Python
-build/
-develop-eggs/
+*.egg
+*.egg-info/
 dist/
-downloads/
 eggs/
-.eggs/
-lib/
-lib64/
 parts/
-sdist/
 var/
 wheels/
-pip-wheel-metadata/
-share/python-wheels/
-*.egg-info/
 .installed.cfg
-*.egg
 MANIFEST
 
-# PyInstaller
-#  Usually these files are written by a python script from a template
-#  before PyInstaller builds the exe, so as to inject date/other infos into it.
-*.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/
-
-# Translations
-*.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
-#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
-#   However, in case of collaboration, if having platform-specific dependencies or dependencies
-#   having no cross-platform support, pipenv may install dependencies that don't work, or not
-#   install all needed dependencies.
-#Pipfile.lock
-
-# PEP 582; used by e.g. github.com/David-OConnor/pyflow
-__pypackages__/
-
-# Celery stuff
-celerybeat-schedule
-celerybeat.pid
-
-# SageMath parsed files
-*.sage.py
-
-# Environments
-.env
-.venv
-env/
-venv/
-ENV/
-env.bak/
-venv.bak/
-
-# Spyder project settings
-.spyderproject
-.spyproject
-
-# Rope project settings
-.ropeproject
-
-# mkdocs documentation
-/site
-
-# mypy
-.mypy_cache/
-.dmypy.json
-dmypy.json
-
-# Pyre type checker
-.pyre/
-
-
-data_backup/
-data/
-exps/
-summary/
-*.csv
-
 # CMake
 CMakeCache.txt
 CMakeFiles/
@@ -147,23 +42,34 @@ Makefile
 compile_commands.json
 CTestTestfile.cmake
 _deps/
-build/
 libtorch/
 
-# Logs
-*.log
+# Environment
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Project specific
+data_backup/
+exps/
+summary/
+*.zip
+
+# Logs (additional)
 log/
 logs/
 *.log.*
-.log
 .logs/
 
-# IDE specific
-.vscode/
-.idea/
+# Editor temp files
 *.swp
 *.swo
 *~
 
-*.pth
-*.zip
+# OS specific
+.DS_Store          # Mac
+Thumbs.db          # Windows