v1.2.1

Changed

• ines_parser.mappers: MAPPER_DATABASE now covers all mapper numbers listed in MAME’s nes_ines.hxx mmc_list (plus curated NESdev-style names where they overlap), including many NES 2.0 mapper IDs.
• Docs: docs/List of iNES mappers.md is a full table aligned with MAPPER_DATABASE, with a Sources section (NESdev, MAME).