* fix(protocol): remap item/block state IDs and entity metadata for older Java clients
The server was using reversed ViaVersion mappings (designed for old→new)
to downgrade packets for older clients, which produced ID collisions and
incorrect fallbacks for 26.1-exclusive items and block states.
Changes:
- Replace ViaVersion with ViaBackwards mapping files for item ID and
block state remapping, which provide the correct new→old direction
with proper closest-item fallbacks for 26.1-exclusive content
- Fix CSetEntityMetadata to remap ItemStack item IDs per client version,
matching the version-aware handling already done for inventory packets
and block state metadata
- Fix TrackedData codegen to resolve Java JSON keys correctly by trying
both bare names and DATA_-prefixed names, and iterate the union of all
version keys instead of only the latest (Bedrock) version
- Fix LootCondition::MatchTool to default to false instead of true,
preventing silk-touch loot table branches from always winning and
causing ores to drop themselves instead of their correct items
Fixes: block drops invisible on older Java clients
Fixes: leather showing as milk bucket on 1.21.11
Fixes: coal ore dropping coal ore instead of coal
Fixes: 26.1-exclusive blocks showing as wrong blocks on older clients
* fix(codegen): remove #[must_use] from trait impl methods in generated code
* fix(codegen): switch entity, sound and block state remapping to ViaBackwards mappings
---------
Co-authored-by: Missing_Love <42416195+Q2297045667@users.noreply.github.com>
42f6b9ce3f
