Complete private authentication, server integrations and activity reporting

Add Fabric/Forge version builds and Paper integration, preserve permanent player identities across renames, harden session authorization, and surface privacy-conscious launcher/server activity in the panel.

.github/workflows/release.yml

@@ -131,15 +131,26 @@ jobs:
           cache-from: type=gha
           cache-to: type=gha,mode=max
 
+  server-integrations:
+    needs: version
+    uses: ./.github/workflows/integrations.yml
+    with:
+      version: ${{ needs.version.outputs.version }}
+
   release:
     name: GitHub release
-    needs: [version, launcher, panel-image]
+    needs: [version, launcher, panel-image, server-integrations]
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/download-artifact@v4
         with:
           name: windows-installer
           path: dist
+      - uses: actions/download-artifact@v4
+        with:
+          pattern: server-*
+          merge-multiple: true
+          path: dist
       - name: Release notes
         run: |
           IMAGE="ghcr.io/${GITHUB_REPOSITORY_OWNER,,}/scopenet-mc-panel"
@@ -148,6 +159,8 @@ jobs:
 
           **Launcher (Windows):** download the \`-setup.exe\` below and run it. Installed launchers update themselves automatically.
 
+          **Servers:** download \`scopenet-paper\` or the Fabric/Forge JAR for your exact Minecraft version. Keep \`online-mode=true\` and install authlib-injector as documented in \`docs/server-integration.md\`.
+
           **Admin panel (Docker):**
           \`\`\`bash
           docker pull ${IMAGE}:${{ needs.version.outputs.version }}
@@ -162,4 +175,6 @@ jobs:
           body_path: notes.md
           generate_release_notes: true
           prerelease: ${{ contains(needs.version.outputs.version, '-') }}
-          files: dist/*-setup.exe
+          files: |
+            dist/*-setup.exe
+            dist/*.jar