chore: pin Rust toolchain to 1.94.0

.github/workflows/deploy-site.yml

@@ -12,9 +12,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@stable
-        with:
-          components: clippy
+        run: rustup show # installs toolchain from rust-toolchain.toml
 
       - name: Cache cargo
         uses: actions/cache@v4
@@ -43,9 +41,9 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@stable
-        with:
-          targets: wasm32-unknown-emscripten
+        run: |
+          rustup show
+          rustup target add wasm32-unknown-emscripten
 
       - name: Cache cargo
         uses: actions/cache@v4

CLAUDE.md

@@ -48,7 +48,7 @@ cargo test --workspace
 cargo clippy --workspace -- -D warnings
 ```
 
-Requires Rust 1.85+ (edition 2024). Currently on rustc 1.93.0.
+Requires Rust 1.85+ (edition 2024). Pinned to 1.94.0 via `rust-toolchain.toml`.
 
 ## CLI usage
 

rust-toolchain.toml

@@ -0,0 +1,3 @@
+[toolchain]
+channel = "1.94.0"
+components = ["clippy", "rustfmt"]