Add Simplifier to the official integrations

[alexgehrke-sim]

Description

The Simplifier MCP enables integration of AI assistants with the Simplifier Low Code Platform. It provides tools and resources for creating and managing Simplifier Connectors and BusinessObjects through the platform's REST API.

Motivation and Context

Initial public release

How Has This Been Tested?

Tested with Claude Code and MCP Inspector on Linux / Windows

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• I have read the MCP Protocol Documentation
• My changes follows MCP security best practices
• I have updated the server's README accordingly
• I have tested this with an LLM client
• My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have documented all environment variables and configuration options

Additional context

Locally run STDIO server