The release run built its push URL and auth header directly from
`secrets.REGISTRY_USER` / `REGISTRY_TOKEN`. A trailing newline in
REGISTRY_USER produced a malformed remote:
warning: url contains a newline in its username component
fatal: credential url cannot be parsed
Pass the secrets through `env:` and strip CR/LF (`tr -d '\r\n'`) before
building the URL (push step) and the `Authorization: token` header (release
step). Using env instead of inline `${{ }}` also stops a newline from
breaking the shell script itself. Verified the file still parses and the
trim turns `Whitlocktech\n` into a clean single-line URL.
Underlying cause is secret hygiene (the value was saved with a trailing
newline); this makes the workflow robust to it either way.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0114TpmrNW4wNXsHq5CR72jQ
Claude
0550129f8e