Read channel in getBlocksToPlace (#68)

## Summary
This causes inconsistency in the API and should be addressed. The
primary consumer of the API is NEI preview and the preview does show
wrong block with glass tier set, not sure if this is the cause
<img width="1088" height="491" alt="image"
src="https://github.com/user-attachments/assets/fff146d8-6d8e-44d9-842e-1677691271d2"
/>

## Checklist
- [ ] I have tested this PR in DevEnv
- [ ] I have tested this PR in Fullpack
- [x] This PR is in compliance with the [GTNH AI
Policy](https://github.com/GTNewHorizons/GTNH-Dev-Doc/blob/master/AI_POLICY.md)
- [ ] This PR requires another PR in order to merge

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

src/main/java/com/gtnewhorizon/structurelib/structure/StructureUtility.java

@@ -3013,7 +3013,8 @@ public class StructureUtility {
             @Override
             public BlocksToPlace getBlocksToPlace(T t, World world, int x, int y, int z, ItemStack trigger,
                     AutoPlaceEnvironment env) {
-                return backing.getBlocksToPlace(t, world, x, y, z, trigger, env);
+                return backing
+                        .getBlocksToPlace(t, world, x, y, z, ChannelDataAccessor.withChannel(trigger, channel), env);
             }
 
             @Deprecated