webledgers-teller 0.2.0

A teller for Web Ledgers on txbt4: did:nostr accounts, a ledger identified by the hash of its genesis, one taproot deposit address per account by additive tweak of the operator's key, signed join/withdraw/transfer requests (kind 3700) applied once, and payouts signed per input with each deposit's derived secret. Pure, no I/O. A port of solidpayorg/teller by Melvin Carvalho.