Digital Token version 2.1.0

Bug Fixes

• Short name and long name lookups resolve the same token on every OTP release. An ambiguous name resolves by token type (native first), then curated symbol, then ascending token identifier, and DigitalToken.search/1 returns the candidates in that order, winner first.

• DigitalToken.symbol/2 returns the curated symbol for ETH, BCH and EOS again. The bundled symbol data is regenerated and keyed to Ethereum Ether, Bitcoin Cash and EOS rather than to layer-two deployments of them.

Enhancements

• Adds the standard GitHub Actions CI workflow (Elixir 1.17–1.20 across OTP 26–29, with formatting and dialyzer on the lint row).

• DigitalToken.validate_token/2 and DigitalToken.get_token/1 document how an ambiguous name resolves, and the README gains a section on ambiguous short names.