Add custom Dockerfile for timelimit-server

.gitea/workflows/timelimit-server.yml

@@ -41,7 +41,6 @@ jobs:
     needs: check
     if: needs.check.outputs.exists == 'false'
     steps:
-
       # Checkout timelimit-server repository for build
       - name: Checkout timelimit-server repository
         uses: actions/checkout@v4
@@ -50,6 +49,17 @@ jobs:
           ref: ${{ needs.check.outputs.tag }}
           token: ${{ secrets.ACCESS_TOKEN }}
 
+      # Checkout THIS repository (Dockerfile lives here)
+      - name: Checkout current repository
+        uses: actions/checkout@v4
+        with:
+          path: docker
+
+      # Copy custom dockerfile
+      - name: Prepare Docker context
+        run: |
+          cp -f docker/Dockerfile-server Dockerfile
+
       # Login to registry (needed to inspect latest image)
       - name: Docker login
         run: |