chore: Remove virtual environment from version control and update .gitignore

- Remove accidentally committed .venv_ci/ directory (287MB) from git tracking
- Add comprehensive virtual environment ignore patterns to .gitignore
- Ignore all common virtual environment directories: .venv/, .venv_ci/, venv/, env/, ENV/, env.bak/, venv.bak/
- Prevent future accidental commits of virtual environments and dependencies
- Follows best practice of not tracking virtual environments in version control

Author: vinod0m

.gitignore

@@ -279,6 +279,38 @@ MSG*.bin
 # python
 *.pyc
 
+# Python Virtual Environments (all variants)
+.venv/
+.venv_*/
+venv/
+venv_*/
+env/
+env_*/
+.env/
+.pyenv/
+pyvenv.cfg
+site-packages/
+
+# Python package management
+__pycache__/
+*.py[cod]
+*$py.class
+dist/
+build/
+*.egg-info/
+*.egg
+.eggs/
+.tox/
+.pytest_cache/
+.mypy_cache/
+.coverage
+htmlcov/
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+.hypothesis/
+
 **/Generated Files/
 **/Merged/*
 **/Unmerged/*