Add GitHub Actions workflows for building binaries and security audit

Co-authored-by: 0xrinegade <[email protected]>

Author: Copilot

.github/workflows/audit.yml

@@ -0,0 +1,25 @@
+name: Security Audit
+
+on:
+  push:
+    paths:
+      - '**/Cargo.toml'
+      - '**/Cargo.lock'
+  schedule:
+    - cron: '0 0 * * 0'  # Run weekly on Sunday at midnight
+  workflow_dispatch: # Allow manual triggering
+
+jobs:
+  audit:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+        
+      - name: Install cargo-audit
+        run: cargo install cargo-audit
+        
+      - name: Run cargo-audit
+        run: cargo audit

.github/workflows/build.yml

@@ -0,0 +1,51 @@
+name: Build and Test
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    name: Build and Test
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-latest
+            target: x86_64-unknown-linux-gnu
+          - os: macos-latest
+            target: x86_64-apple-darwin
+          - os: macos-latest
+            target: aarch64-apple-darwin
+          - os: windows-latest
+            target: x86_64-pc-windows-msvc
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: ${{ matrix.target }}
+
+      - name: Cache Rust dependencies
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            target
+          key: ${{ runner.os }}-${{ matrix.target }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Build
+        run: |
+          cargo build --release --target ${{ matrix.target }}
+
+      - name: Run tests
+        run: |
+          cargo test --target ${{ matrix.target }}
+        # Skip tests for cross-compilation targets that can't run natively
+        if: ${{ !(matrix.os == 'macos-latest' && matrix.target == 'aarch64-apple-darwin' && runner.arch == 'X64') }}