ci: add release workflow for crates.io publishing

- Automated publishing to crates.io on version tags
- Cross-platform binary builds
- GitHub release creation with artifacts
- Manual workflow dispatch support

.github/workflows/release.yml

@@ -0,0 +1,194 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Version to publish (e.g., 0.1.0)'
+        required: true
+        type: string
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  test:
+    name: Final Tests
+    runs-on: ubuntu-latest
+    
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Install Rust stable
+      uses: dtolnay/rust-toolchain@stable
+      with:
+        components: rustfmt, clippy
+    
+    - name: Run tests
+      run: cargo test --all-features --release
+    
+    - name: Check formatting
+      run: cargo fmt -- --check
+    
+    - name: Run clippy
+      run: cargo clippy --all-features -- -D warnings
+
+  publish-crates-io:
+    name: Publish to crates.io
+    needs: test
+    runs-on: ubuntu-latest
+    
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Install Rust stable
+      uses: dtolnay/rust-toolchain@stable
+    
+    - name: Verify version
+      run: |
+        # Extract version from Cargo.toml
+        CARGO_VERSION=$(grep -E "^version" Cargo.toml | head -1 | cut -d'"' -f2)
+        echo "Cargo.toml version: $CARGO_VERSION"
+        
+        # For manual workflow dispatch
+        if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
+          INPUT_VERSION="${{ github.event.inputs.version }}"
+          if [ "$CARGO_VERSION" != "$INPUT_VERSION" ]; then
+            echo "Error: Cargo.toml version ($CARGO_VERSION) doesn't match input version ($INPUT_VERSION)"
+            exit 1
+          fi
+        fi
+        
+        # For tag push
+        if [ "${{ github.event_name }}" = "push" ]; then
+          TAG_VERSION="${GITHUB_REF#refs/tags/v}"
+          if [ "$CARGO_VERSION" != "$TAG_VERSION" ]; then
+            echo "Error: Cargo.toml version ($CARGO_VERSION) doesn't match tag version ($TAG_VERSION)"
+            exit 1
+          fi
+        fi
+    
+    - name: Check if version exists on crates.io
+      run: |
+        CRATE_NAME=$(grep -E "^name" Cargo.toml | head -1 | cut -d'"' -f2)
+        VERSION=$(grep -E "^version" Cargo.toml | head -1 | cut -d'"' -f2)
+        
+        if cargo search "$CRATE_NAME" | grep -q "^$CRATE_NAME = \"$VERSION\""; then
+          echo "Version $VERSION already exists on crates.io"
+          exit 1
+        fi
+    
+    - name: Build release
+      run: cargo build --release --all-features
+    
+    - name: Package for crates.io
+      run: cargo package --all-features
+    
+    - name: Publish to crates.io
+      run: cargo publish --all-features --token ${{ secrets.CARGO_REGISTRY_TOKEN }}
+      env:
+        CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
+
+  create-github-release:
+    name: Create GitHub Release
+    needs: publish-crates-io
+    runs-on: ubuntu-latest
+    
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Install Rust stable
+      uses: dtolnay/rust-toolchain@stable
+    
+    - name: Build release binaries
+      run: |
+        cargo build --release --all-features
+        mkdir -p release
+        cp target/release/crabrl release/crabrl-linux-x64
+        chmod +x release/crabrl-linux-x64
+    
+    - name: Create Release
+      uses: softprops/action-gh-release@v2
+      with:
+        files: release/*
+        generate_release_notes: true
+        body: |
+          ## Installation
+          
+          ### From crates.io
+          ```bash
+          cargo install crabrl
+          ```
+          
+          ### Download Binary
+          Download the pre-built binary for your platform from the assets below.
+          
+          ## What's Changed
+          See the full changelog below.
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  build-cross-platform:
+    name: Build ${{ matrix.target }}
+    needs: test
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        include:
+          - os: ubuntu-latest
+            target: x86_64-unknown-linux-gnu
+            artifact: crabrl-linux-x64
+          - os: ubuntu-latest
+            target: aarch64-unknown-linux-gnu
+            artifact: crabrl-linux-arm64
+            use-cross: true
+          - os: windows-latest
+            target: x86_64-pc-windows-msvc
+            artifact: crabrl-windows-x64.exe
+          - os: macos-latest
+            target: x86_64-apple-darwin
+            artifact: crabrl-macos-x64
+          - os: macos-latest
+            target: aarch64-apple-darwin
+            artifact: crabrl-macos-arm64
+    
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Install Rust
+      uses: dtolnay/rust-toolchain@stable
+      with:
+        targets: ${{ matrix.target }}
+    
+    - name: Install cross
+      if: matrix.use-cross
+      run: cargo install cross
+    
+    - name: Build
+      run: |
+        if [ "${{ matrix.use-cross }}" = "true" ]; then
+          cross build --release --target ${{ matrix.target }} --all-features
+        else
+          cargo build --release --target ${{ matrix.target }} --all-features
+        fi
+      shell: bash
+    
+    - name: Package
+      run: |
+        mkdir -p release
+        if [ "${{ matrix.os }}" = "windows-latest" ]; then
+          cp target/${{ matrix.target }}/release/crabrl.exe release/${{ matrix.artifact }}
+        else
+          cp target/${{ matrix.target }}/release/crabrl release/${{ matrix.artifact }}
+          chmod +x release/${{ matrix.artifact }}
+        fi
+      shell: bash
+    
+    - name: Upload artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: ${{ matrix.artifact }}
+        path: release/${{ matrix.artifact }}