Port OreSpawn 4.0.16 to NeoForge 26.2

[SkyBlade1978]

Summary

Ports the complete OreSpawn 4.0.8-4.0.16 campaign to Minecraft 26.2 / NeoForge 26.2.0.45-beta and finishes at 4.0.16.2602002.

The exact candidate at c5c5411ad1bf12c83361cd1c5191f63fdd69b336 has been manually accepted.

Functional changes

• preserves long Ore and Fluid editor values by applying the existing field limits before restoring text;
• moves natural-host replacement to the start of LOCAL_MODIFICATIONS, ahead of provider surfaces, while preserving later authored blocks and unsafe states;
• evaluates Stable Layers rock eligibility against actual world Y while retaining shifted formation identity;
• resolves dynamic-biome weights and managed-ore filters through stable biome keys;
• aligns public sampling with the highest occupied surface position;
• adds ore-dimension biome include/exclude ID and dictionary builder/getter contracts through the existing provider fields;
• accepts canonical namespaced and legacy unnamespaced geome IDs;
• converts exposed one-layer Snow at top + 1 while preserving buried/authored Snow and Ice;
• shares direct quart/noise-biome attribution between generated geology and public sampling;
• lets the GameTest harness own benchmark reporting and shutdown while retaining ordinary benchmark-server auto-stop.

NeoForge 26.2 adaptations

• retains NeoForge lifecycle, registries, events, biome modifiers, metadata, Identifier, and the optimized chunk-section write path;
• retains NeoGradle 7.1.38, Gradle 9.2.1, Java 25, pack metadata 107.1, and all six access transformers;
• adds deterministic version-only artifacts, Maven bundle verification, checksums, and pinned build/wrapper/CodeQL/tag workflows;
• adds an empty-cache NeoForge bootstrap with same-cache offline replay, without ForgeGradle, Mavenizer, or the 26.1.2 decompiler workaround;
• keeps Eclipse outputs disjoint and ordinary launches limited to processed production classes/resources;
• adapts the packaged client to NeoForge 26.2 menu captions and qualifies the exact Windows runtime noise against a plain-loader control.

Compatibility

API major 1 and schemas 4/6/5 are unchanged. Registry IDs, provider field meanings, profile filenames, migrations, existing chunks, and the [4.0.6,5.0.0) compatibility range are preserved. The only public Java additions are the ore-dimension biome-filter builder/getter methods using Identifier.

Validation

• 141 tests across 33 suites, with zero failures, errors, or skips;
• 40 JSON/mcmeta files parsed, 16 locales with 359 matching keys, and all 21 documentation exports in parity;
• complete offline build, Javadocs, artifact/checksum, and NeoGradle Eclipse lifecycle;
• cold exact-commit and empty-cache online/offline bootstrap qualification;
• fresh/reload surface, natural-host, Stable Layers, dynamic-biome, exact-biome ore, Snow/Ice, flowing-fluid, migration, and biome-attribution gates;
• exact packaged NeoForge client and server world creation/save/reopen qualification with clean logs and crash directories;
• preferred-seed and matched Sky/Average, Cyano, and vanilla performance controls, with no release-blocking regression;
• all three artifacts audited for Java class major 69, NeoForge-only metadata, documentation/locales, six access transformers, and absence of fixture, oracle, test, world, Mavenizer, or agent material.

This PR does not tag, publish, update issues, or directly modify the MMD target branch.