feat(oi): add open interest scraper module

add new oi_scraper directory for collecting open interest data
and update the main EA to integrate with the scraper functionality

oi_scraper/.gitignore

@@ -0,0 +1,31 @@
+# Python cache
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+
+# Virtual environments
+venv/
+env/
+ENV/
+
+# Environment variables
+.env
+
+# Output files
+*.csv
+*.png
+*.log
+
+# Session data
+cookies.json
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db