Ports Divinum Officium's getantcross/depunct (horas.pl): finds where a
displayed antiphon's words stop matching a psalm's first verse, so the
mark can later show where the antiphon leaves off and the psalm's own
text resumes. Not yet wired into any hour builder.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UCvvgFLrhXNVFUThz6kanw
