erdr2pml imports the stdlib `cgi` module, removed in Python 3.13, so its
tests were skipped on modern interpreters. Add the `legacy-cgi` backport
as a dev dependency so the module imports, and flesh out its tests:
deXOR involution, fixKey known vector / length, cleanPML high-ASCII
escaping, and sanitizeFileName separator/colon/control-char/angle-bracket
handling. The skip guard is kept as a safety net for environments without
the backport.
Suite is now 44 passing, 0 skipped.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
JMR-devandClaude Opus 4.8
9b93b5b789