Update project metadata and add test data

- Changed the repository URL in the AIFotoONLUS.Core project file to point to the new Forgejo instance.
- Removed the inclusion of the XML documentation file in the NuGet package.
- Added a new CSV file containing test data for image processing, including filenames and associated text values.

.forgejo/workflows/publish-aifotoonlus-core.yml

@@ -0,0 +1,124 @@
+name: Build And Publish AIFotoONLUS.Core
+
+on:
+  push:
+    branches:
+      - master
+      - develop
+    tags:
+      - '*'
+  workflow_dispatch:
+
+env:
+  DOTNET_VERSION: 10.0.x
+  PROJECT_PATH: src/AIFotoONLUS.Core/AIFotoONLUS.Core.csproj
+  PACKAGE_OUTPUT_DIR: artifacts/nuget
+  PACKAGE_ARTIFACT_NAME: aifotoonlus-core-nuget
+  NUGET_SOURCE_NAME: forgejo-aifotoonlus
+  NUGET_SOURCE_URL: ${{ vars.AIFOTOONLUS_NUGET_SOURCE_URL || format('{0}/api/packages/{1}/nuget/index.json', github.server_url, vars.AIFOTOONLUS_PACKAGE_OWNER || github.repository_owner) }}
+
+jobs:
+  build:
+    runs-on: docker
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: ${{ env.DOTNET_VERSION }}
+
+      - name: Restore
+        run: dotnet restore "${{ env.PROJECT_PATH }}"
+
+      - name: Build
+        run: dotnet build "${{ env.PROJECT_PATH }}" --configuration Release --no-restore /p:GeneratePackageOnBuild=false
+
+      - name: Pack
+        shell: bash
+        run: |
+          set -eu
+          mkdir -p "${{ env.PACKAGE_OUTPUT_DIR }}"
+
+          if [[ "${GITHUB_REF}" == refs/tags/* ]]; then
+            package_version="${GITHUB_REF_NAME#v}"
+            echo "Packing tag version ${package_version}"
+            dotnet pack "${{ env.PROJECT_PATH }}" \
+              --configuration Release \
+              --output "${{ env.PACKAGE_OUTPUT_DIR }}" \
+              --no-build \
+              /p:PackageVersion="${package_version}"
+          else
+            echo "Packing with project version or MinVer-derived version"
+            dotnet pack "${{ env.PROJECT_PATH }}" \
+              --configuration Release \
+              --output "${{ env.PACKAGE_OUTPUT_DIR }}" \
+              --no-build
+          fi
+
+      - name: Upload package artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ env.PACKAGE_ARTIFACT_NAME }}
+          path: ${{ env.PACKAGE_OUTPUT_DIR }}/*.nupkg
+          if-no-files-found: error
+
+  publish:
+    if: startsWith(github.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch'
+    needs: build
+    runs-on: docker
+    env:
+      FORGEJO_PACKAGE_USERNAME: ${{ secrets.FORGEJO_PACKAGE_USERNAME }}
+      FORGEJO_PACKAGE_TOKEN: ${{ secrets.FORGEJO_PACKAGE_TOKEN }}
+
+    steps:
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: ${{ env.DOTNET_VERSION }}
+
+      - name: Download package artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: ${{ env.PACKAGE_ARTIFACT_NAME }}
+          path: ${{ env.PACKAGE_OUTPUT_DIR }}
+
+      - name: Validate publish secrets
+        shell: bash
+        run: |
+          set -eu
+          if [ -z "${FORGEJO_PACKAGE_USERNAME}" ]; then
+            echo "secrets.FORGEJO_PACKAGE_USERNAME is required"
+            exit 1
+          fi
+          if [ -z "${FORGEJO_PACKAGE_TOKEN}" ]; then
+            echo "secrets.FORGEJO_PACKAGE_TOKEN is required"
+            exit 1
+          fi
+
+      - name: Configure Forgejo NuGet source
+        run: |
+          dotnet nuget add source "${{ env.NUGET_SOURCE_URL }}" \
+            --name "${{ env.NUGET_SOURCE_NAME }}" \
+            --username "${FORGEJO_PACKAGE_USERNAME}" \
+            --password "${FORGEJO_PACKAGE_TOKEN}" \
+            --store-password-in-clear-text
+
+      - name: Publish package to Forgejo NuGet
+        shell: bash
+        run: |
+          set -eu
+          shopt -s nullglob
+          packages=("${{ env.PACKAGE_OUTPUT_DIR }}"/*.nupkg)
+          if [ "${#packages[@]}" -eq 0 ]; then
+            echo "No NuGet packages found in ${{ env.PACKAGE_OUTPUT_DIR }}"
+            exit 1
+          fi
+
+          dotnet nuget push "${{ env.PACKAGE_OUTPUT_DIR }}"/*.nupkg \
+            --source "${{ env.NUGET_SOURCE_NAME }}" \
+            --skip-duplicate