Add a SECURITY.md file for responsible disclosure guidelines

### 📌 Suggestion:
Add a SECURITY.md file to provide clear responsible disclosure protocols for potential vulnerabilities in this repository.

### ✅ Why This Is Important:
- It improves the professionalism and trust of the repo.
- Helps external contributors understand how to report vulnerabilities securely and privately.
- Recommended by GitHub's best practices.

### 📂 Suggested Structure:
You can include sections like:
- Supported Versions
- Reporting a Vulnerability (e.g., via email or GitHub Security Advisories)
- Timeline for responses and fixes

Hello @abhirajadhikary06 , Would be happy to contribute this if approved! 😊