feat(ci): add CI workflow

.github/workflows/ci.yml

@@ -0,0 +1,77 @@
+name: Continuous Integration
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+  schedule:
+    - cron: "0 0 * * 0"
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Install Rust stable
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          components: clippy,rustfmt
+      - uses: actions/checkout@v4
+      - name: Build
+        run: cargo build --verbose
+      - name: Run tests
+        run: cargo test --verbose
+      - name: Check lints
+        run: cargo clippy -- -D warnings
+      - name: Check formatting
+        run: cargo fmt --all -- --check
+
+  check-docs:
+    name: Check docs
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install cargo-rdme
+        uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-rdme
+      - name: Check README.md is up-to-date
+        run: cargo rdme --check
+
+  coverage:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install Rust stable
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          components: llvm-tools
+      - name: Install cargo-llvm-cov
+        uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-llvm-cov
+      - name: Generate coverage
+        run: cargo llvm-cov --lcov --output-path target/lcov.info
+      - name: Upload to codecov.io
+        uses: codecov/codecov-action@v4
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          verbose: true
+
+  audit:
+    name: Perform audit for security
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v4
+      - name: Run cargo-audit
+        uses: actions-rs/audit-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}