Function validateInitDataEd25519

validateInitDataEd25519(
    initData: string,
    publicKey: string | Uint8Array<ArrayBufferLike>,
    options: Ed25519ValidationOptions,
): Promise<ValidateInitDataResult>
Validates Telegram Mini App initData using Telegram's Ed25519 third-party validation flow.
Parameters
- initData: string
  Raw initData querystring received from the Telegram WebApp bridge.
- publicKey: string | Uint8Array<ArrayBufferLike>
  Telegram public key as a hex string or byte array.
- options: Ed25519ValidationOptions
  Validation options including the required bot id and optional max-age controls.
Returns Promise<ValidateInitDataResult>
Example
```
const result = await validateInitDataEd25519(initData, publicKey, { botId: 123456789 });
if (result.valid) {
  console.log(result.data.user?.username);
}
```