v0.2.7 — Health check, instructions, and client improvements

What's Changed

Added

• instructions parameter on the FastMCP constructor describing all 16 tools
• /health custom HTTP route returning plain-text OK with logging
• get_url() config helper to read client.url from config.yaml
• client section in config.yaml with the client URL for HTTP transport
• Health check call (_check_health()) as the first step in run_client() for HTTP transport
• test_health_check integration test using httpx.ASGITransport
• "Running the Client" section in README.md with usage instructions

Changed

• Replaced manual URL construction in client.py with get_url() from config
• Replaced custom _shutdown_handler / sys.exit(0) in main.py with try/except KeyboardInterrupt, letting FastMCP handle its own signal cleanup

Removed

• _shutdown_handler() function and signal, sys, types imports from main.py