Fix workflow: use DOCKER_HOST env and plain docker commands

.gitea/workflows/build.yaml

@@ -13,6 +13,7 @@ on:
 env:
   REGISTRY: images.caffeinetux.com
   PROJECT: library
+  DOCKER_HOST: tcp://localhost:2375
 
 jobs:
   build:
@@ -26,15 +27,21 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+      - name: Wait for Docker
+        run: |
+          for i in $(seq 1 30); do
+            if docker info >/dev/null 2>&1; then
+              echo "Docker is ready"
+              break
+            fi
+            echo "Waiting for Docker... ($i/30)"
+            sleep 2
+          done
+          docker info
 
       - name: Login to Harbor
-        uses: docker/login-action@v3
-        with:
-          registry: ${{ env.REGISTRY }}
-          username: ${{ secrets.HARBOR_USERNAME }}
-          password: ${{ secrets.HARBOR_PASSWORD }}
+        run: |
+          echo "${{ secrets.HARBOR_PASSWORD }}" | docker login ${{ env.REGISTRY }} -u "${{ secrets.HARBOR_USERNAME }}" --password-stdin
 
       - name: Generate build files
         run: make generate