ParityCheck compares DB-built objects with the cache JSON and logs
table/id/field differences plus a per-table summary. It runs only when
the optional env var MB_PARITY_CHECK=true is set; it is not added to the
ConfigManager enum because init() aborts on any missing enum entry.
First comparator: static_rune_baseclass name vs RUNE obj_name.
No gameplay values change.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>