Add some workflows

.github/workflows/audit.yml

@@ -0,0 +1,16 @@
+name: Security audit
+on:
+  schedule:
+    - cron: '0 0 * * *'
+  push:
+    paths:
+      - '**/Cargo.toml'
+      - '**/Cargo.lock'
+jobs:
+  security_audit:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: taiki-e/install-action@cargo-deny
+      - name: Scan for vulnerabilities
+        run: cargo deny check advisories

.github/workflows/general.yml

@@ -0,0 +1,73 @@
+name: Rust
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    types: [opened, synchronize, reopened]
+    branches:
+      - main
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v4
+
+      - name: Install the Rust toolchain
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+
+      - name: Run tests
+        run: cargo test
+
+  # `fmt` container job
+  fmt:
+    name: Rustfmt
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install the Rust toolchain
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          components: rustfmt
+      - name: Enforce formatting
+        run: cargo fmt --check
+
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install the Rust toolchain
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          components: clippy
+      - name: Linting
+        run: cargo clippy -- -D warnings
+
+  # `coverage` container job
+  coverage:
+    name: Code coverage
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install the Rust toolchain
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          components: llvm-tools-preview
+      - name: Install cargo-llvm-cov
+        uses: taiki-e/install-action@cargo-llvm-cov
+      - name: Generate code coverage
+        run: cargo llvm-cov --all-features --workspace --lcov --output-path lcov.info
+      - name: Generate report
+        run: cargo llvm-cov report --html --output-dir coverage
+      - uses: actions/upload-artifact@v4
+        with:
+          name: "Coverage report"
+          path: coverage/