WIP: Port Structurize to Minecraft 26.2

[MrFruitDude]

WIP / review disclaimer

This is a coordinated work-in-progress port to Minecraft 26.2. The game starts and core logic works, but crashes and texture/rendering mismatches remain under active investigation. It is not ready to merge.

Changes

• Port Structurize APIs, blueprint handling, GUI, fake levels, render tasks, and resource plumbing to NeoForge/Minecraft 26.2.
• Discover built-in blueprint packs through NeoForge JarContents so packaged schematics are visible instead of treating a mod JAR as a directory.
• Supply the explicit primitive topology required by the 26.2 world-entity icon render pipeline.
• Keep blueprint rendering and translucent/ghost-material parity as active follow-up work.

Change map (286 changed files)

Area	Files	Review focus
src/main/java + src/api/java	222	Blueprint storage/rendering, fake levels, GUI manipulation, render tasks, and 26.2 API mappings
src/main/resources	40	Blueprint metadata, model parents, atlas/resource paths, and UI assets
Datagen/tests	11	Generated tags/data and the carried test surface
Gradle/version + CI metadata	9	Java 25/NeoForge 26.2 wiring and repository checks
Docs/other	4	Port metadata and wrapper files

Key review files: ClientStructurePackLoader, ServerStructurePackLoader, client/rendertask/util/RenderTypes, BlueprintRenderer, and AbstractBlueprintManipulationWindow.

flowchart LR
  J[NeoForge JarContents] --> L[Client/server pack loaders]
  L --> P[Built-in structure pack registry]
  P --> B[Blueprint handler + renderer]
  B --> G[Ghost/translucent preview GUI]

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Validation

• Java 25; ./gradlew build succeeds.
• The linked profile registers Simon_9919, Cliffs, Underwater Base, RosettaTest, Zer0Style, Imperial Roman, High Magic, Steampunk, Corrupted, Ancient Athens, Ancient Athens - Trade Economy (26.2 Preview), Byzantine, RosettaWorldProbe, Lost City Alt, Littleton, Tetris Style, and Arcology.
• Full in-world blueprint/citizen visual parity is still WIP.

TODO audit

The coordinated scan found 13 TODO/FIXME/XXX markers in tracked Structurize source (excluding generated/build/runtime output). They remain follow-up items while the 26.2 rendering path stabilizes.

Show-me / dependency graph

The review map follows the show-me skill: short prose, focused ownership boundaries, and diagrams for the dependency/control flow.

flowchart LR
  B[BlockUI 26.2] --> S[Structurize 26.2]
  S --> MC[MineColonies 26.2]
  D[Domum-Ornamentum 26.2] --> MC
  P[Piston-Unlimited 26.2] --> MC

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Companion PRs

This draft is part of the coordinated MineColonies 26.2 port. Review and test these together:

• MineColonies #11811
• Structurize #851
• Domum-Ornamentum #352
• Piston-Unlimited #41
• BlockUI #131

Standards

Draft only; the repository PR template, issue/CLA requirements, and maintainer review still apply.

Base branch note

The upstream repository does not currently publish a version/26.2 branch. This PR is therefore based on the latest upstream version/1.21 branch, while its head is the new port/26.2-wip branch. It should be retargeted and rebased when maintainers cut the official 26.2 base.

Do not merge this snapshot into version/1.21; it is only a transport/review anchor until version/26.2 exists.

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