Remove orphaned daemon_cmd_test.go referencing undefined AddDaemonCommand/
DaemonCommandConfig symbols. Update docs to reflect current API types
(CommandSetup, core.Service). Restore .gitignore entries for dist/, .env,
and coverage artefacts. Extract appendLocales helper to deduplicate locale
registration. Fix test reset to clear registeredLocales for proper isolation.
Co-Authored-By: Virgil <virgil@lethean.io>
