Phase 3a of migration #2: syncs FILEBROWSER_USERS from homelab/prod /filebrowser via read-only infisical-operator/infisical-auth, template-remapped to the lowercase 'users' key Traefik basic-auth requires, into parallel-name filebrowser-auth-infisical. Old plaintext filebrowser-auth secret + the Traefik Middleware untouched (repoint=3b, removal of the Secret stanza=3c). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>