Add Claude Code integration with SSE support

- Add Server-Sent Events (SSE) endpoint for Claude Code MCP integration
- Create MCP configuration for Claude Code CLI
- Update tool configuration to support modern OpenAPI format
- Add documentation for Claude Code integration options
- Create CLAUDE.md guide for AI coding agents

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

CLAUDE.md

@@ -0,0 +1,27 @@
+# CLAUDE.md - Guide for AI Coding Agents
+
+## Project Overview
+Nomad MCP is a service that enables management of HashiCorp Nomad jobs via REST API, with Claude AI integration.
+
+## Commands
+- **Run server**: `uvicorn app.main:app --reload --host 0.0.0.0 --port 8000`
+- **Tests**: `pytest` (all) or `pytest tests/test_nomad_service.py::test_job_lifecycle` (single)
+- **Build docker**: `docker build -t nomad-mcp .`
+- **Run docker**: `docker-compose up -d`
+
+## Code Style
+- **Imports**: Standard library → Third-party → Local modules (alphabetically)
+- **Type annotations**: Required for all function parameters and returns
+- **Error handling**: Use try/except with proper logging and HTTP exceptions
+- **Logging**: Use Python's logging module with appropriate levels
+- **API responses**: Return consistent JSON structures with Pydantic models
+- **Docstrings**: Required for all functions and classes
+- **Variables**: snake_case for variables, CamelCase for classes
+
+## Structure
+- `/app`: Main code (/routers, /schemas, /services)
+- `/configs`: Configuration files
+- `/static`: Frontend assets
+- `/tests`: Test files
+
+Always maintain backward compatibility with existing API endpoints. Follow REST principles.