4798ce3f18
curses.use_default_colors() raises on terminals (e.g. serial consoles using TERM=linux/vt100) whose terminfo lacks default-color support; init_colors() now falls back to an explicit black background and caps the "disabled" color to 8-color terminals. --reissue without --email silently sent no mail when the CN wasn't in openvpncertupdate-metadata.json, even though its email was already embedded in the cert's index.txt subject (via EASYRSA_REQ_EMAIL) and the TUI already fell back to it. Since build_client_full() always writes that subject field whenever an email is known, metadata.json was a redundant, driftable copy — remove it and have get_email() read index.txt directly, picking the last non-revoked entry for a CN since index.txt can contain revoked/duplicate lines for the same CN. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>