Restore empty webui/static to use traefik as library

.github/workflows/validate.yaml

@@ -27,11 +27,6 @@ jobs:
           go-version: ${{ env.GO_VERSION }}
           check-latest: true
 
-      - name: Avoid generating webui
-        run: |
-          mkdir webui/static
-          touch webui/static/index.html
-
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v7
         with:
@@ -55,11 +50,6 @@ jobs:
       - name: Install misspell ${{ env.MISSPELL_VERSION }}
         run: curl -sfL https://raw.githubusercontent.com/golangci/misspell/HEAD/install-misspell.sh | sh -s -- -b $(go env GOPATH)/bin ${MISSPELL_VERSION}
 
-      - name: Avoid generating webui
-        run: |
-          mkdir webui/static
-          touch webui/static/index.html
-
       - name: Validate
         run: make validate-files