Update Dockerfile

Dockerfile

@@ -6,11 +6,12 @@ ENV DEBIAN_FRONTEND=noninteractive \
     DOTNET_NUGET_SIGNATURE_VERIFICATION=false \
     NODE_OPTIONS="--max-old-space-size=4096"
 
-# 1. System packages + git + ClamAV
+# 1. System packages + git + ClamAV + build tools
 RUN apt-get update && apt-get install -y \
     curl wget gnupg ca-certificates apt-transport-https \
     supervisor nginx unzip git \
     clamav clamav-daemon clamav-freshclam \
+    build-essential \
     && rm -rf /var/lib/apt/lists/*
 
 # 2. MongoDB 4.4
@@ -29,7 +30,7 @@ RUN wget https://releases.hashicorp.com/consul/1.8.0/consul_1.8.0_linux_amd64.zi
     && mv consul /usr/local/bin/ \
     && rm consul_1.8.0_linux_amd64.zip
 
-# 5. .NET 5 SDK (manual installation from archive)
+# 5. .NET 5 SDK
 ENV DOTNET_SDK_VERSION=5.0.408
 RUN wget https://dotnetcli.azureedge.net/dotnet/Sdk/$DOTNET_SDK_VERSION/dotnet-sdk-$DOTNET_SDK_VERSION-linux-x64.tar.gz \
     && mkdir -p /usr/share/dotnet \
@@ -56,7 +57,7 @@ RUN dotnet restore MalwareMultiScan.sln --disable-parallel \
 RUN dotnet build MalwareMultiScan.sln -c Release --no-restore -v minimal \
     || (echo "BUILD FAILED. See above." && exit 1)
 
-# 10. Build the Nuxt.js UI
+# 10. Build the Nuxt.js UI (now with make/gcc available)
 WORKDIR /app/MalwareMultiScan.Ui
 RUN npm install --no-audit --no-fund --prefer-offline \
     && npm run build \
@@ -64,7 +65,7 @@ RUN npm install --no-audit --no-fund --prefer-offline \
     && cp -r dist/* /var/www/html/ \
     && echo "UI build completed"
 
-# 11. Nginx config (port 7860 + API proxy)
+# 11. Nginx config
 RUN echo 'server { \
     listen 7860; \
     server_name _; \