refactor rift entities

[Copilot]

The 3x3 zeiton area check only examined the horizontal (X/Z) plane, failing to detect wall configurations. Scale animation code in RiftEntity was dead—BOTI handles rift rendering separately.

3x3 Area Check

• has3x3ZeitonArea() now takes Direction parameter and checks the plane perpendicular to hit face:
  • UP/DOWN → X/Z plane
  • EAST/WEST → Y/Z plane
  • NORTH/SOUTH → X/Y plane

Direction.Axis facingAxis = facing.getAxis();
if (facingAxis == Direction.Axis.Y) {
    checkPos = center.add(d1, 0, d2);      // horizontal
} else if (facingAxis == Direction.Axis.X) {
    checkPos = center.add(0, d1, d2);      // Y/Z wall
} else {
    checkPos = center.add(d1, d2, 0);      // X/Y wall
}

Removed Dead Code

• SCALE tracked data, getScale()/setScale(), scale logic in tick(), scale NBT fields
• Scale-based rendering in RiftEntityRenderer (BOTI path in AITModClient.riftBOTI() ignores it)

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🆑

• add: rifts no longer spawn naturally - opened via sonic overload on 3x3 zeiton blocks

Original prompt

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This section details on the original issue you should resolve

<issue_title>Refactor Rift Entities</issue_title>
<issue_description>### Description

Details for this request

• Remove naturally spawning rift entities entirely
• Make rift entities like paintings, so they are forced to be attached onto blocks
• Using a Sonic in overload mode on any zeiton block which has a 3x3 area opens a rift onto that centre block

Images, links & related resources

sdadasdasd

I've checked the feature requests...

• ...and this feature request was not requested before.
  </issue_description>

<agent_instructions>Implement the feature as requested
Attempt to run datagen after changes to ensure build works
I'd recommend referencing https://mappings.dev/1.20.1/index.html
If possible, also decompile the source code for related classes (Painting / ItemFrame)
Make the rifts grow to a size after being opened, and shrink away as they approach their limited lifespan</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes Refactor Rift Entities #1989

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