fix parameter

.forgejo/workflows/deploy-backend.yaml

@@ -32,7 +32,7 @@ jobs:
       - name: Log in to Container Registry
         uses: docker/login-action@v3
         with:
-          registry: ${{ env.REGISTRY_URL }}
+          registry: ${{ env.REGISTRY }}
           username: ${{ env.REGISTRY_USERNAME }}
           password: ${{ env.REGISTRY_PASSWORD }}
 
@@ -44,8 +44,8 @@ jobs:
             --no-cache \
             --pull \
             --file ./Backend/Dockerfile \
-            --tag ${{ env.REGISTRY_URL }}/${{ env.BACKEND_IMAGE_NAME }}:${{ env.IMAGE_TAG }} \
-            --tag ${{ env.REGISTRY_URL }}/${{ env.BACKEND_IMAGE_NAME }}:latest \
+            --tag ${{ env.REGISTRY }}/${{ env.BACKEND_IMAGE_NAME }}:${{ env.IMAGE_TAG }} \
+            --tag ${{ env.REGISTRY }}/${{ env.BACKEND_IMAGE_NAME }}:latest \
             .
 
           echo "✅ Build successful!"
@@ -53,14 +53,14 @@ jobs:
 
       - name: Push Docker image
         run: |
-          docker push ${{ env.REGISTRY_URL }}/${{ env.BACKEND_IMAGE_NAME }}:${{ env.IMAGE_TAG }}
-          docker push ${{ env.REGISTRY_URL }}/${{ env.BACKEND_IMAGE_NAME }}:latest
+          docker push ${{ env.REGISTRY }}/${{ env.BACKEND_IMAGE_NAME }}:${{ env.IMAGE_TAG }}
+          docker push ${{ env.REGISTRY }}/${{ env.BACKEND_IMAGE_NAME }}:latest
           echo "✅ Image pushed to registry"
 
       - name: Test image can run
         run: |
           # Quick test that image can start
-          docker run --rm ${{ env.REGISTRY_URL }}/${{ env.BACKEND_IMAGE_NAME }}:${{ env.IMAGE_TAG }} node --version
+          docker run --rm ${{ env.REGISTRY }}/${{ env.BACKEND_IMAGE_NAME }}:${{ env.IMAGE_TAG }} node --version
 
   # build:
   #   name: Build Backend Docker Image