ci: add release job with Gitea binary uploads

- Upload artifacts on tag pushes
- Create release via Gitea API
- Attach all platform binaries to release

.gitea/workflows/ci.yml

@@ -94,3 +94,51 @@ jobs:
         run: |
           go build -ldflags="-s -w" -o dbbackup-${GOOS}-${GOARCH} .
           ls -lh dbbackup-*
+
+      - name: Upload artifact
+        if: startsWith(github.ref, 'refs/tags/')
+        uses: actions/upload-artifact@v3
+        with:
+          name: dbbackup-${{ matrix.goos }}-${{ matrix.goarch }}
+          path: dbbackup-${{ matrix.goos }}-${{ matrix.goarch }}
+
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    needs: [build]
+    if: startsWith(github.ref, 'refs/tags/')
+    steps:
+      - name: Download all artifacts
+        uses: actions/download-artifact@v3
+        with:
+          path: artifacts
+
+      - name: Prepare release files
+        run: |
+          mkdir -p release
+          find artifacts -type f -name 'dbbackup-*' -exec cp {} release/ \;
+          cd release && ls -lh
+
+      - name: Create Gitea Release
+        env:
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+        run: |
+          TAG=${GITHUB_REF#refs/tags/}
+          
+          # Create release via API
+          RELEASE_ID=$(curl -s -X POST \
+            -H "Authorization: token ${GITEA_TOKEN}" \
+            -H "Content-Type: application/json" \
+            -d "{\"tag_name\":\"${TAG}\",\"name\":\"${TAG} - Systemd Integration & Prometheus Metrics\",\"body\":\"## Download\\n\\nSelect the binary for your platform.\",\"draft\":false,\"prerelease\":false}" \
+            "https://git.uuxo.net/api/v1/repos/${GITHUB_REPOSITORY}/releases" | jq -r '.id')
+          
+          echo "Created release ID: $RELEASE_ID"
+          
+          # Upload each binary
+          for file in release/dbbackup-*; do
+            echo "Uploading $file..."
+            curl -s -X POST \
+              -H "Authorization: token ${GITEA_TOKEN}" \
+              -F "attachment=@${file}" \
+              "https://git.uuxo.net/api/v1/repos/${GITHUB_REPOSITORY}/releases/${RELEASE_ID}/assets?name=$(basename $file)"
+          done