feat: Add release notes generation and Docker image information to build workflow

.gitea/workflows/build.yaml

@@ -14,6 +14,8 @@ jobs:
     steps:
       - name: Check out repository code
         uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # Fetch full history for release notes generation
 
       - name: Install Docker
         run: curl -fsSL https://get.docker.com | sh
@@ -55,3 +57,49 @@ jobs:
           labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=registry,ref=gitea-http.taildb3494.ts.net/will/thechart:buildcache
           cache-to: type=registry,ref=gitea-http.taildb3494.ts.net/will/thechart:buildcache,mode=max
+
+      - name: Generate release notes
+        id: release_notes
+        if: startsWith(gitea.ref, 'refs/tags/')
+        run: |
+          # Get the current tag
+          CURRENT_TAG=${GITEA_REF#refs/tags/}
+
+          # Get the previous tag
+          PREVIOUS_TAG=$(git describe --tags --abbrev=0 HEAD^ 2>/dev/null || echo "")
+
+          # Generate release notes from commits
+          if [ -n "$PREVIOUS_TAG" ]; then
+            echo "## Changes from $PREVIOUS_TAG to $CURRENT_TAG" > release_notes.md
+            echo "" >> release_notes.md
+            git log --pretty=format:"- %s (%h)" $PREVIOUS_TAG..$CURRENT_TAG >> release_notes.md
+          else
+            echo "## Initial Release $CURRENT_TAG" > release_notes.md
+            echo "" >> release_notes.md
+            git log --pretty=format:"- %s (%h)" >> release_notes.md
+          fi
+
+          # Add Docker image information
+          echo "" >> release_notes.md
+          echo "## Docker Images" >> release_notes.md
+          echo "" >> release_notes.md
+          echo "This release includes multi-platform Docker images:" >> release_notes.md
+          echo "- \`gitea-http.taildb3494.ts.net/will/thechart:$CURRENT_TAG\`" >> release_notes.md
+          echo "- \`gitea-http.taildb3494.ts.net/will/thechart:latest\`" >> release_notes.md
+
+          # Output the release notes content for use in next step
+          echo "release_notes<<EOF" >> $GITEA_OUTPUT
+          cat release_notes.md >> $GITEA_OUTPUT
+          echo "EOF" >> $GITEA_OUTPUT
+
+      - name: Create Release
+        if: startsWith(gitea.ref, 'refs/tags/')
+        uses: actions/create-release@v1
+        env:
+          RELEASE_TOKEN: ${{ secrets.RELEASE_TOKEN }}
+        with:
+          tag_name: ${{ gitea.ref_name }}
+          release_name: Release ${{ gitea.ref_name }}
+          body: ${{ steps.release_notes.outputs.release_notes }}
+          draft: false
+          prerelease: false