feat: add GitHub Actions workflow for automated release process

Author: mfisher31

.github/workflows/release.yml

@@ -0,0 +1,108 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Release version (e.g., v1.2.0) - only for manual testing'
+        required: false
+
+jobs:
+  build-release:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+      fail-fast: false
+    
+    runs-on: ${{ matrix.os }}
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      with:
+        submodules: recursive
+    
+    - name: Install dependencies (Linux)
+      if: runner.os == 'Linux'
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y \
+          build-essential \
+          cmake \
+          ninja-build \
+          libasound2-dev \
+          libjack-jackd2-dev \
+          ladspa-sdk \
+          libcurl4-openssl-dev \
+          libfontconfig1-dev \
+          libfreetype6-dev \
+          libx11-dev \
+          libxcomposite-dev \
+          libxcursor-dev \
+          libxext-dev \
+          libxinerama-dev \
+          libxrandr-dev \
+          libxrender-dev \
+          libglu1-mesa-dev \
+          mesa-common-dev
+    
+    - name: Install dependencies (macOS)
+      if: runner.os == 'macOS'
+      run: |
+        brew install cmake ninja
+    
+    - name: Install dependencies (Windows)
+      if: runner.os == 'Windows'
+      run: |
+        choco install cmake ninja -y
+    
+    - name: Configure CMake
+      run: |
+        cmake -B build \
+          -G Ninja \
+          -DCMAKE_BUILD_TYPE=Release \
+          -DCMAKE_INSTALL_PREFIX=/usr/local
+    
+    - name: Build
+      run: cmake --build build --config Release
+    
+    - name: Create package
+      run: |
+        cd build
+        cpack -C Release
+    
+    - name: Upload artifacts
+      uses: actions/upload-artifact@v4
+      with:
+        name: packages-${{ matrix.os }}
+        path: build/
+        retention-days: 1
+  
+  create-release:
+    needs: build-release
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Download all artifacts
+      uses: actions/download-artifact@v4
+      with:
+        path: artifacts
+    
+    - name: Prepare release files
+      run: |
+        mkdir -p release-files
+        find artifacts -type f \( -name "*.sh" -o -name "*.tar.gz" -o -name "*.deb" -o -name "*.zip" -o -name "*.dmg" \) -exec cp {} release-files/ \;
+        ls -la release-files/
+    
+    - name: Create Release
+      uses: softprops/action-gh-release@v1
+      with:
+        files: release-files/*
+        tag_name: ${{ github.event.inputs.version || github.ref_name }}
+        draft: true
+        prerelease: false
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}