Noctua MCP Server

# Changelog ## [Unreleased] ### Added - **`create_model` tool**: Create new empty GO-CAM models with optional titles - Generates new model IDs automatically - Returns model ID for use with other tools - Integrates with `get_noctua_url` from noctua-py for easy access to Noctua editor ### Enhanced - **Comprehensive examples in all tool docstrings**: - Each tool now has 3-12 practical examples - Examples use real GO terms, UniProt IDs, and RO relations - Common evidence codes (ECO) documented with use cases - Relationship types explained with their meanings - **New example scripts**: - `examples/demo_create_model.py` - Demonstrates model creation workflow - `examples/show_tools.py` - Lists all tools with their documentation - `examples/usage_examples.md` - Comprehensive usage guide ### Changed - Refactored to use noctua-py as the core library - MCP server is now a thin shim layer over noctua-py - All business logic moved to upstream noctua-py library ### Fixed - Live tests now properly skip when BARISTA_TOKEN is invalid - Tests marked with `@pytest.mark.live` for easy exclusion ### Testing - Added comprehensive unit tests for create_model functionality - 34 tests pass (excluding live tests) - Tests cover all major functionality including model creation ## Dependencies - Now depends on noctua-py library (local path) - Requires BARISTA_TOKEN environment variable for privileged operations