Height-based multi-layer replacement per Y for Tile Culling (parity with Raytraced AntiXray)

[dabchi4]

Is your feature request related to a problem?

Yes. In the Overworld I need height-based masking to match natural geology and to block sky bases:

• Y < 0 should look like deepslate,
• Y ≥ 0 should look like stone,
• Y ≥ 100 should be masked as air.
  raytraced-antixray already supports a height map via replacementBlocks (e.g. 0: STONE, -64: DEEPSLATE). But raytraced-tile-culling only accepts a single replacementBlock. If I try to use a map there, the config gets regenerated. As a result, cheaters can material-filter for STONE at Y<0 and easily spot hidden blocks, and sky bases stay hideable.

Describe the solution you'd like.

Add first-class support for multi-layer (Y-range) replacement in raytraced-tile-culling, similar to replacementBlocks in raytraced-antixray.

Proposed, backward-compatible syntax (first match wins, ranges inclusive):
replacementRules:

• minHeight: 101
  maxHeight: 320
  replacementBlock: AIR
• minHeight: 0
  maxHeight: 100
  replacementBlock: STONE
• minHeight: -64
  maxHeight: -1
  replacementBlock: DEEPSLATE

If replacementRules is absent, keep using the current single replacementBlock. Please also document the equivalent height-map behavior for raytraced-antixray so both modules are consistent.

Describe alternatives you've considered.

Tried alternatives:

• Two configs for the same world (worldFilters: [world]) split by minBlockHeight/maxBlockHeight with different replacementBlock → only one profile applies globally; the other is ignored.
• Using a height map (replacementBlocks) inside raytraced-tile-culling (similar to AntiXray) → the config auto-regenerates and removes the map.
• Switching filters from environment:* to exact world names (world, world_nether, world_the_end) → same result (single active profile).
• Workarounds considered: forbid building above Y≥100 via server rules/Skript; use a single replacementBlock (e.g., DEEPSLATE) for the whole world. These mitigate but don’t solve the core need: multi-layer masking and AIR above Y≥100.

Agreements

• I have searched for and ensured there isn't already an open issue regarding this.
• I have ensured the feature I'm requesting isn't already in the latest RaytraceAntiXray.

Other

Repro:

1. Overworld world, Imanity Raytraced AntiXray | Ores, Entities, Tiles v0.19.3beta.
2. Create two tile-culling configs for world with different height ranges and different replacementBlock.
3. Reload the plugin → only one replacement applies for all heights.
4. Add a replacementBlocks map to tile-culling → the file is regenerated and the map is removed.
   Expected: DEEPSLATE below 0, STONE from 0–100, AIR at ≥101 within one world.

Note: this issue text was translated from Russian via ChatGPT. If anything sounds unclear, I can clarify or provide the original.