feat: update README.md with safety first clause

Author: MatanYemini

README.md

@@ -2,6 +2,11 @@
 
 A Model Context Protocol (MCP) server for integrating with Bitbucket Cloud and Server APIs. This MCP server enables AI assistants like Cursor to interact with your Bitbucket repositories, pull requests, and other resources.
 
+## Safety First
+This is a safe and responsible package — no DELETE operations are used, so there’s no risk of data loss.
+Every pull request is analyzed with CodeQL to ensure the code remains secure.
+
+[![CodeQL](https://github.com/MatanYemini/bitbucket-mcp/actions/workflows/github-code-scanning/codeql/badge.svg)](https://github.com/MatanYemini/bitbucket-mcp/actions/workflows/github-code-scanning/codeql)
 [![GitHub Repository](https://img.shields.io/badge/GitHub-Repository-blue.svg)](https://github.com/MatanYemini/bitbucket-mcp)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 [![npm version](https://badge.fury.io/js/bitbucket-mcp.svg)](https://www.npmjs.com/package/bitbucket-mcp)