release: v1.0.1 - FastMCP 2.x migration with multi-Python support

Major changes:
- Migrate from MCP SDK to FastMCP 2.x for modern async/await patterns
- Add Python 3.11, 3.12, and 3.13 support with CI matrix builds
- Fix IntelliJ compatibility and timeout issues
- Update Nix flake to Python 3.12 with fastmcp from nixpkgs
- Consolidate linting/formatting with ruff (remove black/flake8/isort)
- Remove pkg_resources for Python 3.11+ compatibility
- Update README to use single Python versions badge

Technical improvements:
- Convert all tools to async with @mcp.tool() decorators
- Fix all 334 tests for async architecture
- Add separate CI jobs for Python matrix and Nix testing
- Enhance type safety with FastMCP's built-in types
- Maintain 100% backward compatibility

This release modernizes the codebase while maintaining all existing
functionality. The migration to FastMCP 2.x is entirely internal with
no user-facing API changes.

Author: jamesbrink

README.md

@@ -3,9 +3,7 @@
 [![CI](https://github.com/utensils/mcp-nixos/actions/workflows/ci.yml/badge.svg)](https://github.com/utensils/mcp-nixos/actions/workflows/ci.yml)
 [![codecov](https://codecov.io/gh/utensils/mcp-nixos/graph/badge.svg?token=kdcbgvq4Bh)](https://codecov.io/gh/utensils/mcp-nixos)
 [![PyPI](https://img.shields.io/pypi/v/mcp-nixos.svg)](https://pypi.org/project/mcp-nixos/)
-[![Python 3.11](https://img.shields.io/badge/python-3.11-blue.svg)](https://www.python.org/downloads/)
-[![Python 3.12](https://img.shields.io/badge/python-3.12-blue.svg)](https://www.python.org/downloads/)
-[![Python 3.13](https://img.shields.io/badge/python-3.13-blue.svg)](https://www.python.org/downloads/)
+[![Python versions](https://img.shields.io/pypi/pyversions/mcp-nixos.svg)](https://pypi.org/project/mcp-nixos/)
 [![smithery badge](https://smithery.ai/badge/@utensils/mcp-nixos)](https://smithery.ai/server/@utensils/mcp-nixos)
 [![Verified on MseeP](https://mseep.ai/badge.svg)](https://mseep.ai/app/99cc55fb-a5c5-4473-b315-45a6961b2e8c)