[Backend] Add cryptographic signature verification to SEP-10 Authentication

[emdevelopa]

Description
This task involves system optimization for the SEP-10 Authentication module.
The goal is to Add cryptographic signature verification to.lower SEP-10 Authentication to enhance the platform's robustness and user experience.

Requirements and context

• Adhere to the Drips Wave design and engineering standards.
• Ensure full test coverage for new logic.
• Must be secure, performant, and well-documented.
• Specifically focused on system optimization.

Suggested execution

1. Fork the repo and create a branch
2. Review existing implementation in SEP-10 Authentication.
3. Apply changes: Add cryptographic signature verification to.
4. Test and commit

Example commit message
backend: Add cryptographic signature verification to SEP-10 Authentication

Guidelines

• Complexity: High (200 points)
• Points: 200