feat: add validation and hardcoded paths badges to README

- Included badges for skill validation and hardcoded paths checks in the README.md to enhance visibility of CI workflows.
- This addition improves the documentation by providing immediate feedback on the project's health and code quality.

Author: i-stack

README.md

@@ -4,6 +4,8 @@
 [![iOS Engineer Skill](https://img.shields.io/badge/iOS%20Engineer-Swift%20%7C%20SwiftUI%20%7C%20UIKit-0A84FF)](skills-engineering/ios-engineer/SKILL.md)
 [![MCP Config Sync](https://img.shields.io/badge/MCP%20Config-8%20Platforms-663399)](sync/README.md)
 [![Universal RAG Gateway](https://img.shields.io/badge/Universal%20RAG%20Gateway-TypeScript%20%7C%20Fastify-34C759)](rag-gateway/README.md)
+[![Validate Skills](https://github.com/i-stack/ai-coding-kit/actions/workflows/validate.yml/badge.svg)](https://github.com/i-stack/ai-coding-kit/actions/workflows/validate.yml)
+[![Check Hardcoded Paths](https://github.com/i-stack/ai-coding-kit/actions/workflows/hardcoded-paths.yml/badge.svg)](https://github.com/i-stack/ai-coding-kit/actions/workflows/hardcoded-paths.yml)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](LICENSE)
 
 > **One kit. All your AI coding tools.** Agent Skills management, MCP configuration sync, iOS engineering rules, and a Universal RAG Gateway — unified for Cursor, CodeBuddy, Codex, Claude Code, Gemini CLI, Continue, Cline, and Xcode Coding Assistant.