Add github workflow for ci and coverage

.github/workflows/tests.yml

@@ -0,0 +1,95 @@
+on: [push, pull_request]
+
+name: Rust Node CI
+
+jobs:
+  check:
+    name: Check
+    runs-on: ubuntu-latest
+    env:
+      CARGO_TERM_COLOR: always
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - uses: actions-rs/cargo@v1
+        with:
+          command: check
+          args: --manifest-path node/Cargo.toml
+
+  test:
+    name: Test Suite
+    runs-on: ubuntu-latest
+    env:
+      CARGO_TERM_COLOR: always
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --manifest-path node/Cargo.toml
+
+  fmt:
+    name: Rustfmt
+    runs-on: ubuntu-latest
+    env:
+      CARGO_TERM_COLOR: always
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - run: rustup component add rustfmt
+      - uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --manifest-path node/Cargo.toml --all -- --check 
+
+  coverage:
+    runs-on: ubuntu-latest
+    env:
+      CARGO_TERM_COLOR: always
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install Rust
+        run: rustup update stable
+      - name: Install cargo-llvm-cov
+        uses: taiki-e/install-action@cargo-llvm-cov
+      - name: Generate code coverage
+        run: cd node && cargo llvm-cov --all-features --workspace --lcov --output-path lcov.info
+        env:
+          RUST_LOG: debug
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }} # not required for public repos
+          files: lcov.info
+          fail_ci_if_error: true
+          verbose: true
+
+
+  # clippy:
+  #   name: Clippy
+  #   runs-on: ubuntu-latest
+  #   steps:
+  #     - uses: actions/checkout@v4
+  #     - uses: actions-rs/toolchain@v1
+  #       with:
+  #         profile: minimal
+  #         toolchain: stable
+  #         override: true
+  #     - run: rustup component add clippy
+  #     - uses: actions-rs/cargo@v1
+  #       with:
+  #         command: clippy
+  #         args: -- -D warnings