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

src/GreenHome.Api/GreenHome.Api.csproj

@@ -29,7 +29,7 @@
   </ItemGroup>
 
   <Target Name="BuildFrontend" BeforeTargets="Build" Condition="'$(Configuration)' == 'Release' And Exists('..\GreenHome.Web\package.json')">
-    <Exec Command="npm.cmd run build" WorkingDirectory="..\GreenHome.Web" />
+    <Exec Command="npm run build" WorkingDirectory="..\GreenHome.Web" />
     <ItemGroup>
       <FrontendDist Include="..\GreenHome.Web\dist\**\*" />
     </ItemGroup>