LoreKeeper MCP

# Implement Comprehensive Live MCP Tests ## Why The current live test scripts (`test_mcp_tools.py` and `test_mcp_tools_live.py`) provide basic validation but lack comprehensive coverage of real-world scenarios, edge cases, error handling, and cache behavior with actual API data. We need a pytest-based suite that validates: - Complete MCP tool functionality against live APIs - Error handling and recovery mechanisms - Cache performance and correctness with real data - API response validation and schema conformance - Rate limiting and retry behavior ## What Changes - Create comprehensive pytest-based live test suite in `tests/test_tools/test_live_mcp.py` - Add pytest markers for live tests (`@pytest.mark.live`) - Implement test fixtures for live API testing (optional cache clearing, rate limiting) - Add validation for API response schemas and data types - Test error scenarios (network failures, invalid queries, missing data) - Validate cache hit/miss behavior with live data - Add performance benchmarks for API calls and cache retrieval - Document how to run live tests and interpret results - **BREAKING**: Deprecate standalone `test_mcp_tools_live.py` script in favor of pytest suite ## Impact - **Affected specs**: New capability `mcp-live-testing` - **Affected code**: - `tests/test_tools/test_live_mcp.py` (new comprehensive test suite) - `tests/conftest.py` (add live test fixtures and markers) - `pyproject.toml` (add pytest marker configuration) - `test_mcp_tools_live.py` (deprecate after migration) - `test_mcp_tools.py` (keep as example/manual testing script) - **Dependencies**: None (uses existing testing infrastructure) - **Documentation**: `docs/testing.md` (add live testing section)