ClayGrounds v0.3.3 — Canopy Render Fix

- Preserves the v0.3.3 floating-island architecture and map coordinates.
- Replaces authored minecraft:jungle_leaves canopy blocks with minecraft:green_concrete.
- The resource pack maps green_concrete to the same ClayGrounds canopy texture previously used by jungle_leaves.
- This routes tree canopies through Minecraft's solid block render path instead of the leaves/cutout path.
- No terrain geometry, buildings, encounter anchors, class altars, progression, or construction cadence changed.
