Add build workflow for Jellyfin Plugin with artifact upload

.gitea/workflows/build_V2.yml

@@ -0,0 +1,45 @@
+name: '🏗️ Build Plugin'
+
+on:
+  push:
+    paths-ignore:
+      - '**/*.md'
+      - '.gitea/**'
+      - '.github/**'
+      - 'jellyfin.ruleset'
+      - '.gitignore'
+      - '.editorconfig'
+      - 'LICENSE'
+      - 'logo.png'
+  pull_request:
+    paths-ignore:
+      - '**/*.md'
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    env:
+      PIP_BREAK_SYSTEM_PACKAGES: "1"
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v6
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v5
+        with:
+          dotnet-version: "9.x"
+
+      - name: Build Jellyfin Plugin
+        run: |
+          dotnet build Jellyfin.Plugin.MediaBar/Jellyfin.Plugin.MediaBar.csproj --configuration Release --output bin/Publish
+          cd bin/Publish
+          zip -r Jellyfin.Plugin.MediaBar.zip *
+          
+      - name: Upload Artifact
+        uses: christopherHX/gitea-upload-artifact@v4
+        with:
+          name: plugin-build-artifact
+          retention-days: 5
+          if-no-files-found: error
+          path: bin/Publish/Jellyfin.Plugin.MediaBar.zip