Add GitHub Actions workflow for Rust testing

- Runs tests on push and pull requests to main branch
- Includes formatting check, clippy linting, build, and test steps
- Uses cargo caching for improved performance

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

1 files changed, 43 insertions, 0 deletions

diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
new file mode 100644
index 0000000..9be2f41
--- /dev/null
+++ b/.github/workflows/rust.yml
@@ -0,0 +1,43 @@
+name: Rust
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Install Rust
+      uses: dtolnay/rust-toolchain@stable
+      
+    - name: Cache cargo registry
+      uses: actions/cache@v3
+      with:
+        path: |
+          ~/.cargo/registry
+          ~/.cargo/git
+          target
+        key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+        restore-keys: |
+          ${{ runner.os }}-cargo-
+          
+    - name: Check formatting
+      run: cargo fmt --check
+      
+    - name: Run clippy
+      run: cargo clippy -- -D warnings
+      
+    - name: Build
+      run: cargo build --verbose
+      
+    - name: Run tests
+      run: cargo test --verbose
\ No newline at end of file