Add Debian package support and publish workflow

.gitea/workflows/publish-debian.yaml

@@ -0,0 +1,62 @@
+name: Publish Debian Package
+
+on:
+  push:
+    branches: [ "main" ]
+    paths:
+      - 'GiteaPublish/**'
+      - '.gitea/workflows/publish-debian.yaml'
+  workflow_dispatch:
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - uses: actions/checkout@v4
+      
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 10.0.x
+
+      - name: Build GiteaPublish Tool
+        run: |
+          dotnet publish GiteaPublish/GiteaPublish.csproj -c Release -r linux-x64 --self-contained \
+            -p:PublishSingleFile=true \
+            -p:PublishReadyToRun=true \
+            -p:UseAppHost=true \
+            -o ./publish-tool
+
+      - name: Get application version
+        id: get_version
+        run: |
+          VERSION=$(dotnet run -v q --property WarningLevel=0 --project GiteaPublish -- --version)
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+          echo "Application version: $VERSION"
+
+      - name: Build Debian Package
+        run: |
+          sed -i "s/<PKG-VER>/${{ steps.get_version.outputs.version }}/g" debian/control
+          mkdir -p package/usr/bin
+          cp ./publish-tool/GiteaPublish package/usr/bin/gitea-publish
+          mkdir -p package/DEBIAN
+          cp debian/control package/DEBIAN/
+          chmod 755 package/usr/bin/gitea-publish
+          chmod 755 package/DEBIAN
+          chmod 644 package/DEBIAN/control
+          dpkg-deb --build package gitea-publish_${{ steps.get_version.outputs.version }}_amd64.deb
+
+      - name: Publish to Gitea
+        env:
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+          GITEA_USERNAME: ${{ github.actor }}
+        run: |
+          ./publish-tool/GiteaPublish package debian publish \
+            --username "${GITEA_USERNAME}" \
+            --password "${GITEA_TOKEN}" \
+            --owner "${{ github.repository_owner }}" \
+            --distribution "stable" \
+            --component "main" \
+            --file "gitea-publish_${{ steps.get_version.outputs.version }}_amd64.deb" \
+            --base-url "${{ github.server_url }}"