The publish job aborted at the top-of-job NPM_TOKEN assert, so every tag run
since 0.1.1 failed before checkout and nothing was ever published. Lift both
optional secrets into job-level env (the secrets context is not allowed in a
step if) and gate each publish step: the Gitea release on GITEA_TOKEN, npm
publish on NPM_TOKEN. An absent secret now skips only its step, so a tag without
the maintainer's secrets stays green after the packaging checks.