Add AI attribution to README and SECURITY docs

Adds a 'Built with Claude AI' badge to the README header and an
'AI Assistance' section acknowledging that the project was designed
and built with Claude by Anthropic. Updates SECURITY.md with an
'AI-Assisted Security Infrastructure' section detailing the specific
security work that was AI-generated — linting rules, unit tests,
CI pipeline, and credential handling design.

README.md

@@ -6,6 +6,7 @@ A self-hosted, full-stack network management platform for MikroTik devices. Moni
 ![License](https://img.shields.io/badge/license-AGPLv3-blue)
 ![Docker](https://img.shields.io/badge/docker-compose-2496ED?logo=docker&logoColor=white)
 ![TypeScript](https://img.shields.io/badge/TypeScript-5.3-3178C6?logo=typescript&logoColor=white)
+![Built with Claude](https://img.shields.io/badge/built%20with-Claude%20AI-blueviolet?logo=anthropic&logoColor=white)
 
 ---
 
@@ -413,6 +414,14 @@ This license was chosen to ensure that improvements made to this project — inc
 
 ---
 
+## AI Assistance
+
+This project was designed and built with the help of [Claude](https://claude.ai) by Anthropic. AI assistance was used throughout development — including architecture decisions, backend services, frontend components, the CI/CD pipeline, security configuration, and unit tests.
+
+We believe in being transparent about how software is made. The code has also been review and tested using AI, and is maintained by the project authors.
+
+---
+
 ## Disclaimer
 
 This project is not affiliated with or endorsed by MikroTik. MikroTik and RouterOS are trademarks of SIA MikroTīkls. Use this software at your own risk. Always test configuration changes in a non-production environment first.