feat: add GitHub Actions workflow for automated release process

.github/workflows/README.md

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+# GitHub Release Workflow
+
+This document describes the GitHub Actions workflow for releasing the Garage UI project.
+
+## How to Create a Release
+
+1. Create a new tag following semantic versioning and push it to GitHub:
+   ```bash
+   git tag v1.0.0
+   git push origin v1.0.0
+   ```
+
+2. The workflow will automatically create a GitHub release and build everything
+
+## What the Workflow Does
+
+When a new tag is pushed, the workflow will:
+
+1. Extract the version from the tag (e.g., v1.0.0 becomes 1.0.0)
+2. Build the Docker image and push it to GitHub Container Registry with appropriate version tags
+3. Build binaries for various platforms (Linux with architectures: 386, amd64, arm, arm64) using the tag version
+4. Create a GitHub release and attach the binaries as assets
+
+## Docker Images
+
+The Docker images will be available at:
+- `ghcr.io/adekabang/garage-ui:latest`
+- `ghcr.io/adekabang/garage-ui:X.Y.Z` (version tag)
+- `ghcr.io/adekabang/garage-ui:X.Y` (major.minor tag)
+
+## Binaries
+
+The binaries will be attached to the GitHub release and can be downloaded directly from the release page.
+
+## Configuration
+
+If you want to also push Docker images to Docker Hub, uncomment and configure the Docker Hub login section in the workflow file and add the following secrets to your repository:
+
+- `DOCKERHUB_USERNAME`: Your Docker Hub username
+- `DOCKERHUB_TOKEN`: Your Docker Hub access token

.github/workflows/release.yml

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+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*.*.*'
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+  DOCKER_HUB_REGISTRY: adekabang/garage-webui
+
+jobs:
+  build-and-push-image:
+    name: Build and push Docker image
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to the GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+          
+      # Optional: Log in to Docker Hub if you want to push there too
+      # Uncomment and configure secrets in your GitHub repository settings
+      # - name: Log in to Docker Hub
+      #   uses: docker/login-action@v3
+      #   with:
+      #     username: ${{ secrets.DOCKERHUB_USERNAME }}
+      #     password: ${{ secrets.DOCKERHUB_TOKEN }}
+      #
+      # - name: Add Docker Hub as additional image target
+      #   if: ${{ success() && secrets.DOCKERHUB_USERNAME != '' }}
+      #   run: |
+      #     docker tag ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.get_version.outputs.VERSION }} ${{ env.DOCKER_HUB_REGISTRY }}:${{ steps.get_version.outputs.VERSION }}
+      #     docker tag ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.get_version.outputs.VERSION }} ${{ env.DOCKER_HUB_REGISTRY }}:latest
+      #     docker push ${{ env.DOCKER_HUB_REGISTRY }}:${{ steps.get_version.outputs.VERSION }}
+      #     docker push ${{ env.DOCKER_HUB_REGISTRY }}:latest
+
+      - name: Get version from tag
+        id: get_version
+        run: echo "VERSION=${GITHUB_REF#refs/tags/v}" >> $GITHUB_OUTPUT
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=raw,value=${{ steps.get_version.outputs.VERSION }}
+            type=semver,pattern={{major}}.{{minor}}
+            type=raw,value=latest
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            VERSION=${{ steps.get_version.outputs.VERSION }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+  build-binaries:
+    name: Build binaries
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: '1.21'
+      
+      - name: Set up Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: '20'
+          
+      - name: Set up PNPM
+        uses: pnpm/action-setup@v2
+        with:
+          version: 8
+          
+      - name: Install dependencies
+        run: pnpm install
+          
+      - name: Get version from tag
+        id: get_version
+        run: echo "VERSION=${GITHUB_REF#refs/tags/v}" >> $GITHUB_OUTPUT
+      
+      - name: Create version.txt file with tag version
+        run: echo "${{ steps.get_version.outputs.VERSION }}" > version.txt
+      
+      - name: Create custom build script for tag-based versioning
+        run: |
+          cat > misc/tag-build.sh << 'EOF'
+          #!/bin/sh
+          
+          set -e
+          
+          BINARY=garage-webui
+          VERSION=$(cat version.txt)
+          PLATFORMS="linux"
+          ARCHITECTURES="386 amd64 arm arm64"
+          
+          echo "Building version $VERSION"
+          
+          pnpm run build
+          cd backend && rm -rf dist && mkdir -p dist && rm -rf ./ui/dist && cp -r ../dist ./ui/dist
+          
+          for PLATFORM in $PLATFORMS; do
+              for ARCH in $ARCHITECTURES; do
+                  echo "Building $PLATFORM-$ARCH"
+          
+                  GOOS=$PLATFORM GOARCH=$ARCH go build -o "dist/$BINARY-v$VERSION-$PLATFORM-$ARCH" -tags="prod" main.go
+              done
+          done
+          EOF
+          
+          chmod +x misc/tag-build.sh
+
+      - name: Build binaries
+        run: |
+          ./misc/tag-build.sh
+
+      - name: Create Release
+        id: create_release
+        uses: softprops/action-gh-release@v1
+        with:
+          name: Release ${{ steps.get_version.outputs.VERSION }}
+          draft: false
+          prerelease: false
+          files: |
+            backend/dist/garage-webui-*
+          generate_release_notes: true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}