Initial commit: Terrafier v0.1.0

- Core world model (World, Dimension, Tile, Terrain, Platform)
- NBT reader/writer with full tag support
- Anvil region (.mca) format reader with chunk parsing
- Block palette compression and export
- Biome database with Minecraft 1.21 biomes
- CLI commands: new, import, export, info, render
- GUI application with egui (viewport, tools, undo/redo)
- Noise-based heightmap generation and editing operations

License: GPL-3.0-or-later

core/Cargo.toml

@@ -0,0 +1,25 @@
+[package]
+name = "terrafier-core"
+version.workspace = true
+edition.workspace = true
+license.workspace = true
+description = "Core library for Terrafier — world model, Minecraft I/O, export pipeline"
+
+[dependencies]
+serde.workspace = true
+thiserror.workspace = true
+rayon.workspace = true
+log.workspace = true
+
+terrafier-nbt = { path = "../crates/nbt" }
+terrafier-fastanvil = { path = "../crates/fastanvil" }
+terrafier-noise = { path = "../crates/noise" }
+
+serde-big-array.workspace = true
+
+bincode.workspace = true
+
+image.workspace = true
+
+[dev-dependencies]
+tempfile = "3"