chore: update .gitignore and Cargo.toml configurations

Add `/emsdk` to .gitignore to exclude emsdk directory from version control. Update `godot` dependency in Cargo.toml to explicitly use the master branch. Modify rustflags in .cargo/cargo.toml to include a comment about thread support.

Author: FrankCasanova

squash-the-creeps/rust/.cargo/cargo.toml

@@ -4,7 +4,7 @@
 # targets: https://github.com/rust-lang/cargo/issues/8733
 [target.wasm32-unknown-emscripten]
 rustflags = [
-    "-C", "link-args=-pthread", # assumes threads enabled.
+    "-C", "link-args=-pthread", # /!\ Read 'Thread support' below regarding this flag
     "-C", "link-args=-sSIDE_MODULE=2",
     "-C", "target-feature=+atomics,+bulk-memory,+mutable-globals",
     "-Zlink-native-libraries=no",

squash-the-creeps/rust/.gitignore

@@ -1 +1,2 @@
 /target
+/emsdk

squash-the-creeps/rust/Cargo.toml

@@ -11,5 +11,5 @@ crate-type = ["cdylib"]
 
 [dependencies]
 rand = "0.9.0"
-godot = { git = "https://github.com/godot-rust/gdext.git" }
+godot = { git = "https://github.com/godot-rust/gdext.git", branch = "master" }
 # For Wasm, feature "experimental-wasm" can be added, but this is already done in build-wasm.sh script.