4c0cba5984
- Added remaps property to HashlineMismatchError to store a map of stale references to their corrected versions with quick fix suggestions. - Added diagnostic output for no-op edits that displays target lines from failed edit operations to help users understand why edits had no effect. - Added computeLineHash and parseLineRef helper functions to public exports for use in diagnostic and validation logic. - Enhanced error messages in HashlineMismatchError with quick fix suggestions showing stale references and their corrected versions. - Updated hashline edit tool documentation with critical guidelines on preserving formatting, recovery procedures, and pre-submission verification checklist.