Feature request: Export zpub/vpub for BIP84 BTC/LTC accounts #1410

Please add support for exporting zpub / vpub for BIP84 BTC/LTC accounts.

Right now Stack Wallet appears to expose generic extended public keys, but not the BIP84-serialized zpub / vpub form. This creates unnecessary friction when using software that expects explicit BIP84 account exports for native SegWit.

zpub / vpub export would improve compatibility for watch-only and other external wallet tools.

Thanks for considering it.