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.gitignore

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+# OS
+.DS_Store
+Thumbs.db
+
+# IDE / Editor
+.idea/
+.vscode/
+*.swp
+*.swo
+
+# Python
+__pycache__/
+*.py[cod]
+*.pyo
+*.pyd
+.Python
+.pytest_cache/
+.mypy_cache/
+.ruff_cache/
+.coverage
+.coverage.*
+htmlcov/
+.tox/
+.nox/
+.venv/
+venv/
+env/
+
+# Environment variables / secrets
+.env
+.env.*
+!.env.example
+
+# Backend runtime artifacts
+backend/problem_bank.db
+backend/*.db
+backend/uploads/
+
+# Frontend (Node/Vite)
+frontend/node_modules/
+frontend/dist/
+frontend/.vite/
+frontend/.cache/
+frontend/*.tsbuildinfo
+
+# Logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+# Cursor / local generated artifacts
+.cursor/
+!.cursor/rules/
+!.cursor/rules/**