Port Mineralogy 6.1.2 to Minecraft 1.21.1 NeoForge

[SkyBlade1978]

Summary

Ports Mineralogy 6.1.2 to Minecraft 1.21.1 on NeoForge, based on the merged 1.20.6 NeoForge line and the accepted Forge 1.21.1 compatibility work.

• targets Minecraft 1.21.1, NeoForge 21.1.247, Java 21, and pack format 34
• pins released OreSpawn 4.0.16.121012 while retaining runtime compatibility [4.0.6,5.0.0)
• preserves registry IDs, NBT, configs, migrations, crude oil, legacy-world conversion, mining/drop behavior, furnace persistence, and the corrected relief shape
• converts data to 1.21 singular paths and carries the complete native-tuff recipe, slab, stonecutting, bridge, and advancement matrix
• retains 1,433 Mineralogy recipe/advancement pairs, 48 Minecraft recipe overrides, 21 Minecraft advancement overrides, and JSON-only recipes
• keeps c: interoperability tags, narrowly scoped historical forge: aliases, reload-safe cobblestone equivalence, and production-only Eclipse launches
• resolves the exact OreSpawn Maven coordinate from MMD Maven first, with the matching CurseForge file as a restricted SHA-256-verified fallback, avoiding CurseMaven rate limits during IDE sync

Mineralogy continues to register no terrain or ore generator; OreSpawn remains authoritative for the schema-4/revision-3 provider.

Validation

• user completed manual testing of the exact candidate
• clean check build javadoc verifyReleaseConfiguration verifyReleaseDependencies verifyReleaseArtifacts writeReleaseChecksums passed
• NeoGradle eclipse and verifyEclipseProductionClasspath passed
• development and exact packaged client/server fresh-and-reload smokes passed
• preferred-seed Ocean and forced-volcanic qualification, Nether/End isolation, and covered crude-oil checks passed
• disposable NeoForge 1.20.6, Forge 1.21.1, and converted Sylvester upgrades passed without changing source fixtures
• release JAR SHA-256: 8F17FAEF0D1713A83A5FF5B00B14AFEEB56E9E2C10B1B6EF7755CD4FB8AA2C1B

No registry, configuration, provider, or world-generation identity is intentionally changed.