Function resolveInviteLink

resolveInviteLink(link: string): string | undefined
Parses a Telegram invite link and extracts the hash. Supports formats like:
- https://t.me/joinchat/HASH
- https://t.me/+HASH
- tg://join?invite=HASH
Parameters
- link: string
  The invite link
Returns string | undefined
The invite hash, or undefined if not a valid invite link
- Defined in teleproto/Utils.ts:1346