Function aes_encrypt 

pub fn aes_encrypt(key: &str, data: &str) -> Result<String, Error>

Encrypts data using AES-256-GCM-SIV with a static nonce.

Arguments

• key - The encryption key
• data - The plaintext data to encrypt

Returns

• Ok(String) - Base64 encoded ciphertext
• Err(Error) - If encryption fails