Refined existing noise

- Hexagon styles produce coherent solid cells with contained subdivisions
- Sierpinski triangles use equilateral recursive geometry
- Noise styles share a 64-block base scale
- Zoom scales the complete pattern with its distortion
- Octaves preserve the base seed and feature scale
- Coordinate dispatch uses the native dimensional sampler
- Classic kernels retain seed precision and bounded output
- Interpolation preserves fractional coordinates and symmetric curves
- Noise caches respect sampling bounds and generation identity
- Clover sampling reuses vertices and cached trigonometry
- Noise and terrain tests cover corrected sampling behavior

adapters/bukkit/nms/v26_2_R1/src/test/java/art/arcane/iris/nativegen/NativeStructurePostProcessorSurfaceTerrainTest.java

@@ -87,7 +87,7 @@ import static org.junit.Assert.assertThrows;
 import static org.junit.Assert.assertTrue;
 
 public class NativeStructurePostProcessorSurfaceTerrainTest {
-    private static final int SLAB_DEPTH = 128;
+    private static final int SLAB_DEPTH = 512;
     private static final int SLAB_MIN_Y = 64;
     private static final int SLAB_PADDING = 14;
     private static final int SLAB_WIDTH = 16;