Add GitHub Actions workflows for CI/CD and releases

- Add build.yml workflow for continuous integration
  - Builds web app on Ubuntu
  - Packages Electron app for Windows, macOS, and Linux
  - Uploads artifacts for each platform

- Add release.yml workflow with release-drafter integration
  - Automatically creates draft releases on push to main
  - Auto-calculates version based on PR labels (major/minor/patch)
  - Updates package.json version during build for proper installers
  - Uploads platform-specific installers to draft releases

- Add release-drafter.yml configuration
  - Organizes changelog by categories (Features, Bug Fixes, Maintenance)
  - Supports semantic versioning via PR labels

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.github/release-drafter.yml

@@ -0,0 +1,43 @@
+name-template: 'v$RESOLVED_VERSION'
+tag-template: 'v$RESOLVED_VERSION'
+
+categories:
+  - title: '🚀 Features'
+    labels:
+      - 'feature'
+      - 'enhancement'
+  - title: '🐛 Bug Fixes'
+    labels:
+      - 'fix'
+      - 'bugfix'
+      - 'bug'
+  - title: '🧰 Maintenance'
+    labels:
+      - 'chore'
+      - 'dependencies'
+
+change-template: '- $TITLE @$AUTHOR (#$NUMBER)'
+change-title-escapes: '\<*_&' # You can add # and @ to disable mentions, and add ` to disable code blocks.
+
+version-resolver:
+  major:
+    labels:
+      - 'major'
+      - 'breaking'
+  minor:
+    labels:
+      - 'minor'
+      - 'feature'
+  patch:
+    labels:
+      - 'patch'
+      - 'fix'
+      - 'bugfix'
+  default: patch
+
+template: |
+  ## Changes
+
+  $CHANGES
+
+  **Full Changelog**: https://github.com/$OWNER/$REPOSITORY/compare/$PREVIOUS_TAG...v$RESOLVED_VERSION

.github/workflows/build.yml

@@ -0,0 +1,92 @@
+name: Build and Package
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  workflow_dispatch:
+
+jobs:
+  build-web:
+    name: Build Web Application
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build web application
+        run: npm run build
+
+      - name: Upload web build artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: web-build
+          path: dist/
+          retention-days: 7
+
+  build-electron:
+    name: Build Electron - ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Package Electron app
+        run: npm run package
+
+      - name: Create distributables
+        run: npm run make
+
+      - name: Upload Windows artifacts
+        if: matrix.os == 'windows-latest'
+        uses: actions/upload-artifact@v4
+        with:
+          name: electron-windows
+          path: |
+            out/make/squirrel.windows/**/*.exe
+            out/make/squirrel.windows/**/*.nupkg
+          retention-days: 30
+
+      - name: Upload macOS artifacts
+        if: matrix.os == 'macos-latest'
+        uses: actions/upload-artifact@v4
+        with:
+          name: electron-macos
+          path: |
+            out/make/zip/**/*.zip
+          retention-days: 30
+
+      - name: Upload Linux artifacts
+        if: matrix.os == 'ubuntu-latest'
+        uses: actions/upload-artifact@v4
+        with:
+          name: electron-linux
+          path: |
+            out/make/deb/**/*.deb
+            out/make/rpm/**/*.rpm
+          retention-days: 30

.github/workflows/release.yml

@@ -0,0 +1,94 @@
+name: Release
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  draft-release:
+    name: Draft Release
+    runs-on: ubuntu-latest
+    outputs:
+      release-id: ${{ steps.drafter.outputs.id }}
+      tag-name: ${{ steps.drafter.outputs.tag_name }}
+      version: ${{ steps.drafter.outputs.resolved_version }}
+    steps:
+      - name: Draft release
+        id: drafter
+        uses: release-drafter/release-drafter@v5
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  build-release:
+    name: Build Release - ${{ matrix.os }}
+    needs: draft-release
+    if: needs.draft-release.outputs.tag-name != ''
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+
+      - name: Update package.json version
+        run: |
+          npm version ${{ needs.draft-release.outputs.version }} --no-git-tag-version
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Package and make
+        run: npm run make
+
+      - name: Upload Windows release assets
+        if: matrix.os == 'windows-latest'
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: https://uploads.github.com/repos/${{ github.repository }}/releases/${{ needs.draft-release.outputs.release-id }}/assets
+          asset_path: out/make/squirrel.windows/x64/*.exe
+          asset_name: SKiTCH-Controller-${{ needs.draft-release.outputs.version }}-Setup.exe
+          asset_content_type: application/octet-stream
+
+      - name: Upload all Windows assets
+        if: matrix.os == 'windows-latest'
+        run: |
+          for file in out/make/squirrel.windows/x64/*; do
+            gh release upload ${{ needs.draft-release.outputs.tag-name }} "$file" --clobber
+          done
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Upload macOS assets
+        if: matrix.os == 'macos-latest'
+        run: |
+          for file in out/make/zip/darwin/**/*.zip; do
+            gh release upload ${{ needs.draft-release.outputs.tag-name }} "$file" --clobber
+          done
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Upload Linux assets
+        if: matrix.os == 'ubuntu-latest'
+        run: |
+          for file in out/make/deb/x64/*.deb out/make/rpm/x64/*.rpm; do
+            gh release upload ${{ needs.draft-release.outputs.tag-name }} "$file" --clobber
+          done
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}