ci: add GitHub Actions workflow for automated testing

Add comprehensive CI pipeline that runs on all PRs and pushes to main:

Jobs:
- test: Run full test suite (106 tests)
- clippy: Lint code and fail on warnings
- format: Verify code formatting with rustfmt
- build: Ensure release build succeeds

Dependencies installed:
- LLVM/Clang for BPF compilation
- libelf-dev and libbpf-dev for BPF support
- Linux headers for kernel integration

Caching strategy:
- Cargo registry and git index
- Build artifacts to speed up subsequent runs

This ensures all PRs meet quality standards before merging.

Signed-off-by: Sai Aung Hlyan Htet <saiaunghlyanhtet2003@gmail.com>

Author: saiaunghlyanhtet

.github/workflows/ci.yml

@@ -0,0 +1,136 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  clippy:
+    name: Clippy (Linting)
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          components: clippy
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            llvm \
+            clang \
+            libelf-dev \
+            libbpf-dev \
+            linux-tools-common \
+            linux-tools-generic \
+            linux-headers-generic \
+            linux-libc-dev \
+            build-essential \
+            pkg-config
+
+      - name: Run clippy
+        run: cargo clippy --all-targets --all-features -- -D warnings
+
+  format:
+    name: Format Check
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt
+
+      - name: Check formatting
+        run: cargo fmt --all -- --check
+
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            llvm \
+            clang \
+            libelf-dev \
+            libbpf-dev \
+            linux-tools-common \
+            linux-tools-generic \
+            linux-headers-generic \
+            linux-libc-dev \
+            build-essential \
+            pkg-config
+
+      - name: Build
+        run: cargo build --verbose --release
+
+  test:
+    name: Test Suite
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            llvm \
+            clang \
+            libelf-dev \
+            libbpf-dev \
+            linux-tools-common \
+            linux-tools-generic \
+            linux-headers-generic \
+            linux-libc-dev \
+            build-essential \
+            pkg-config
+
+      - name: Cache cargo registry
+        uses: actions/cache@v4
+        with:
+          path: ~/.cargo/registry
+          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Cache cargo index
+        uses: actions/cache@v4
+        with:
+          path: ~/.cargo/git
+          key: ${{ runner.os }}-cargo-git-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Cache cargo build
+        uses: actions/cache@v4
+        with:
+          path: target
+          key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Run tests
+        run: cargo test --verbose