Fixes #23072: Rebuild cable paths when applying or changing a cable profile (#23091)

Set `_terminations_modified` flag when recreating terminations to ensure
paths are rebuilt even when endpoints remain unchanged.
Reset `_orig_status`, `_orig_profile`, and `_terminations_modified`
after saving a cable to prevent repeated saves from recreating
terminations and paths.
Add comprehensive test coverage for profile changes, trunk regrouping,
and mid-span cables.