préparation phase 1.1

Cargo.lock

@@ -501,6 +501,12 @@ dependencies = [
  "xml-rs",
 ]
 
+[[package]]
+name = "glam"
+version = "0.33.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f22fb22f065b308be0d8724e3706c7fa3fc2a6c7d6899df4cad7860e7a75436"
+
 [[package]]
 name = "glow"
 version = "0.17.0"
@@ -2323,7 +2329,9 @@ name = "wsg-lib"
 version = "0.1.0"
 dependencies = [
  "bytemuck",
+ "glam",
  "pollster",
+ "slotmap",
  "thiserror 2.0.18",
  "wgpu",
  "winit",