Initial commit: Clean SEO analysis system

.gitignore

@@ -0,0 +1,48 @@
+# Configuration
+.env
+.env.local
+
+# Virtual Environment
+venv/
+env/
+ENV/
+.venv
+
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+*.egg-info/
+dist/
+build/
+
+# Input files (sensitive/large)
+input/analytics/
+input/**/*.csv
+input/**/*.txt
+
+# Output files (generated results)
+output/results/
+output/logs/
+output/**/*.csv
+output/**/*.txt
+output/**/*.log
+output/**/*.md
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Backup/rollback files
+*.bak
+rollback_*.csv
+*_backup.csv