Add .gitignore and clean up test files

Co-authored-by: 0xrinegade <[email protected]>

Author: Copilot

.gitignore

@@ -0,0 +1,27 @@
+# Build artifacts
+repo-data.json
+docs/data-old.json
+
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+*.egg-info/
+dist/
+build/
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Editor
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# Logs
+*.log