fix: build para amd/x86

.gitea/workflows/pr-validation.yml

@@ -73,11 +73,12 @@ jobs:
         
         # Build apenas para teste (sem push)
         docker buildx build \
+          --platform linux/amd64 \
           --file Dockerfile.release \
           --build-arg VERSION=$VERSION \
           --build-arg COMMIT=$SHORT_COMMIT \
           --tag $REGISTRY/$IMAGE_NAME:pr-${{ github.event.number }}-$SHORT_COMMIT \
-          --load \
+          --output type=docker \
           .
       
     - name: Security scan (opcional)