Fix CI workflow: use correct rust-toolchain action (#1)

* Fix CI workflow: use correct rust-toolchain action

* Fix CI: resolve Rust compilation and formatting issues
- Fix rust-toolchain action name in CI workflow
- Add missing Direction import in test modules
- Add missing entry_fees argument to open_position test calls
- Comment out nightly-only rustfmt options
- Auto-format code with cargo fmt

.github/workflows/ci.yml

@@ -10,23 +10,22 @@ env:
   CARGO_TERM_COLOR: always
 
 jobs:
-  test:
+  lint:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
 
       - name: Set up Rust
-        uses: dtolnay/rust-action@stable
-
-      - name: Run Rust tests
-        run: cargo test --all-features
-
-      - name: Run Rust clippy
-        run: cargo clippy --all-features -- -D warnings
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          components: clippy, rustfmt
 
       - name: Check Rust formatting
         run: cargo fmt --check
 
+      - name: Run Rust clippy
+        run: cargo clippy --all-features
+
   build:
     runs-on: ubuntu-latest
     steps: