ci: add build verification GitHub Action (#22)

Signed-off-by: Gunjan10-droid <[email protected]>

Author: Gunjan10-droid

.github/workflows/build-verification.yml

@@ -0,0 +1,52 @@
+name: Build Verification
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build:
+    name: Rust Build & Test
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        rust: [stable, beta]
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install Rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust }}
+          override: true
+          components: rustfmt, clippy
+
+      - name: Cache Cargo registry
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            target
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Build
+        run: cargo build --workspace --verbose
+
+      - name: Run Tests
+        run: cargo test --workspace --verbose
+
+      - name: Check Formatting
+        run: cargo fmt --all -- --check
+
+      - name: Run Clippy Linter
+        run: cargo clippy --workspace -- -D warnings
+
+      - name: Test CLI examples
+        run: |
+          cargo run --bin rusticle -- --help