slight update

.gitignore

@@ -83,6 +83,8 @@ yarn.lock
 .env.test.local
 .env.production.local
 *.env
+!.env.example
+!backend/.env.example
 
 # ===================================
 # Database
@@ -167,21 +169,69 @@ $RECYCLE.BIN/
 # Generated files
 newsletter_preview.html
 *.log
+*.log.*
 
 # Temporary files
 *.tmp
 *.temp
 *.bak
 *.backup
+*~
 
-# Docker volumes
+# Docker
+docker-compose.override.yml
+.dockerignore.local
+
+# Docker volumes (data should not be in repo)
 mongodb_data/
 ollama_data/
 
+# Database initialization script (may contain sensitive data)
+init-database.sh
+
 # Spec artifacts (optional - uncomment if you don't want to track specs)
-.kiro/specs/
-.vscode
+# .kiro/specs/
+
 # Test outputs
 test-results/
 coverage/
+*.html
+!news_sender/newsletter_template.html
+
+# Build artifacts
+*.pyc
+*.pyo
+*.pyd
+.Python
+build/
+dist/
+
+# Documentation builds
+docs/_build/
+site/
+
+# Local configuration overrides
+config.local.py
+settings.local.py
+
+# Jupyter Notebooks checkpoints
+.ipynb_checkpoints/
+
+# pytest
+.pytest_cache/
+.tox/
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/