Add automatic release tagging workflow

- Creates date-based version tags (v2025.01.08) on push to main
- Handles multiple releases per day with patch numbers (v2025.01.08.1, v2025.01.08.2)
- Runs tests and build before tagging to ensure quality
- Generates release notes with changelog since last tag
- Includes installation instructions in release notes
- Uses Forgejo-compatible actions and git configuration

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

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

.forgejo/workflows/auto-tag.yml

@@ -0,0 +1,121 @@
+name: Auto Tag Release
+
+on:
+  push:
+    branches: [ main ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  auto-tag:
+    runs-on: self-hosted
+    name: Create Auto Tag
+    
+    steps:
+      - name: Checkout code
+        uses: https://code.forgejo.org/actions/checkout@v4
+        with:
+          fetch-depth: 0
+          
+      - name: Setup Node.js
+        run: |
+          node --version
+          npm --version
+          
+      - name: Install dependencies
+        run: npm ci
+        
+      - name: Run tests
+        run: npm test
+        
+      - name: Build project
+        run: npm run build
+        
+      - name: Generate version tag
+        id: version
+        run: |
+          # Get the current date in YYYY.MM.DD format
+          DATE_VERSION=$(date +%Y.%m.%d)
+          
+          # Check if a tag with today's date already exists
+          if git tag -l | grep -q "^v${DATE_VERSION}$"; then
+            # If it exists, add a patch number
+            PATCH_NUM=$(git tag -l "v${DATE_VERSION}.*" | wc -l)
+            PATCH_NUM=$((PATCH_NUM + 1))
+            VERSION="v${DATE_VERSION}.${PATCH_NUM}"
+          else
+            VERSION="v${DATE_VERSION}"
+          fi
+          
+          echo "Generated version: $VERSION"
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+          
+      - name: Create and push tag
+        run: |
+          VERSION="${{ steps.version.outputs.version }}"
+          
+          # Configure git
+          git config --local user.email "action@forgejo.org"
+          git config --local user.name "Forgejo Action"
+          
+          # Create annotated tag with commit info
+          COMMIT_MSG=$(git log -1 --pretty=%B)
+          git tag -a "$VERSION" -m "Release $VERSION
+
+          Latest changes:
+          $COMMIT_MSG
+          
+          Auto-generated on $(date)"
+          
+          # Push the tag
+          git push origin "$VERSION"
+          
+          echo "✅ Created and pushed tag: $VERSION"
+          
+      - name: Create release notes
+        run: |
+          VERSION="${{ steps.version.outputs.version }}"
+          
+          # Get the previous tag to generate changelog
+          PREV_TAG=$(git describe --tags --abbrev=0 HEAD^ 2>/dev/null || echo "")
+          
+          echo "# Release $VERSION" > RELEASE_NOTES.md
+          echo "" >> RELEASE_NOTES.md
+          echo "**Release Date:** $(date '+%Y-%m-%d %H:%M:%S UTC')" >> RELEASE_NOTES.md
+          echo "**Commit:** ${{ github.sha }}" >> RELEASE_NOTES.md
+          echo "" >> RELEASE_NOTES.md
+          
+          if [ -n "$PREV_TAG" ]; then
+            echo "## Changes since $PREV_TAG" >> RELEASE_NOTES.md
+            echo "" >> RELEASE_NOTES.md
+            
+            # Get commits since last tag
+            git log $PREV_TAG..HEAD --pretty=format:"- %s" >> RELEASE_NOTES.md
+          else
+            echo "## Latest Changes" >> RELEASE_NOTES.md
+            echo "" >> RELEASE_NOTES.md
+            git log -5 --pretty=format:"- %s" >> RELEASE_NOTES.md
+          fi
+          
+          echo "" >> RELEASE_NOTES.md
+          echo "" >> RELEASE_NOTES.md
+          echo "## Installation" >> RELEASE_NOTES.md
+          echo "" >> RELEASE_NOTES.md
+          echo '```bash' >> RELEASE_NOTES.md
+          echo "# Clone the repository" >> RELEASE_NOTES.md
+          echo "git clone https://git.deco.sh/deco/ice.git" >> RELEASE_NOTES.md
+          echo "cd ice" >> RELEASE_NOTES.md
+          echo "" >> RELEASE_NOTES.md
+          echo "# Checkout this release" >> RELEASE_NOTES.md
+          echo "git checkout $VERSION" >> RELEASE_NOTES.md
+          echo "" >> RELEASE_NOTES.md
+          echo "# Install and build" >> RELEASE_NOTES.md
+          echo "npm install" >> RELEASE_NOTES.md
+          echo "npm run build" >> RELEASE_NOTES.md
+          echo "npm start" >> RELEASE_NOTES.md
+          echo '```' >> RELEASE_NOTES.md
+          
+          echo "Release notes created:"
+          cat RELEASE_NOTES.md