Entity map correction: Pac-Man is ($B1,$B6); $B0/$BA is a ghost

The long-standing map (pacX=$B0/pacY=$BA) was watching ghost slot 0 — the same diagnostic-mislabel class as 09ag-16. GRP0 = ghost channel (4-frame color rotation), GRP1 = Pac (constant tan) — also inverted vs prior assumption.

Raw traces, ROM material, local paths, and personal data are not part of this public record.