refactor: update environment variable names and enhance README for clarity

.gitea/workflows/arch-docker-node.yml

@@ -7,7 +7,7 @@ on:
   workflow_dispatch:     # Cho phép chạy tay nếu cần
 
 env:
-  BASE_IMAGE_PATH: git.thuanle.me/public/base
+  IMAGE_BASE: git.thuanle.me/public/base
   IMAGE: arch-docker-node
 
 jobs:
@@ -34,32 +34,9 @@ jobs:
 
           docker build \
             -f ${{ env.IMAGE }}.${{ matrix.arch }}.Dockerfile \
-            -t ${{ env.BASE_IMAGE_PATH }}:${{ env.IMAGE }}-${{ matrix.arch }}-latest \
+            -t ${{ env.IMAGE_BASE }}:${{ env.IMAGE }}-${{ matrix.arch }}-latest \
             --label "build_date=$(date -u +'%Y-%m-%dT%H:%M:%SZ')" \
             --label "commit_sha=${{ github.sha }}" \
             .
 
-          docker push ${{ env.BASE_IMAGE_PATH }}:${{ env.IMAGE }}-${{ matrix.arch }}-latest
-
-  # amend-manifest:
-  #   runs-on: ubuntu-latest
-  #   needs: [build]
-  #   steps:
-  #     - name: Login to Docker Registry
-  #       uses: docker/login-action@v3
-  #       with:
-  #         registry: git.thuanle.me
-  #         username: ${{ secrets.DOCKER_USERNAME }}
-  #         password: ${{ secrets.DOCKER_PASSWORD }}
-
-  #     - name: Push Docker manifest
-  #       run: |
-  #         echo "Delete existing manifest"
-  #         docker manifest rm ${{ env.BASE_IMAGE_PATH }}:latest || true
-          
-  #         echo "Create new manifest"
-  #         docker manifest create ${{ env.BASE_IMAGE_PATH }}:latest \
-  #           ${{ env.BASE_IMAGE_PATH }}:amd64-latest \
-  #           ${{ env.BASE_IMAGE_PATH }}:arm64-latest
-
-  #         docker manifest push ${{ env.BASE_IMAGE_PATH }}:latest
+          docker push ${{ env.IMAGE_BASE }}:${{ env.IMAGE }}-${{ matrix.arch }}-latest