fix build

Dockerfile

@@ -1,5 +1,9 @@
 FROM mcr.microsoft.com/dotnet/sdk:9.0 AS build
 WORKDIR /src
+
+# Install Node.js for frontend build
+RUN apt-get update && apt-get install -y nodejs npm && rm -rf /var/lib/apt/lists/*
+
 COPY ./src/ .
 RUN dotnet restore --verbosity detailed
 RUN dotnet publish  -c Release -o /app