Initial commit: HelpDesk ICHN - .NET 10 backend + Next.js 16 frontend

backend/Dockerfile

@@ -0,0 +1,22 @@
+FROM mcr.microsoft.com/dotnet/sdk:10.0 AS build
+WORKDIR /src
+
+# Copy solution and project files for layer caching
+COPY backend/HelpDesk.sln backend/HelpDesk.sln
+COPY backend/HelpDesk.Models/HelpDesk.Models.csproj backend/HelpDesk.Models/
+COPY backend/HelpDesk.Data/HelpDesk.Data.csproj backend/HelpDesk.Data/
+COPY backend/HelpDesk.API/HelpDesk.API.csproj backend/HelpDesk.API/
+RUN dotnet restore backend/HelpDesk.API/HelpDesk.API.csproj
+
+# Copy everything and build
+COPY backend/ backend/
+WORKDIR /src/backend
+RUN dotnet publish HelpDesk.API/HelpDesk.API.csproj -c Release -o /app/publish --no-restore
+
+FROM mcr.microsoft.com/dotnet/aspnet:10.0 AS runtime
+WORKDIR /app
+COPY --from=build /app/publish .
+EXPOSE 5000
+ENV ASPNETCORE_URLS=http://+:5000
+ENV ASPNETCORE_ENVIRONMENT=Production
+ENTRYPOINT ["dotnet", "HelpDesk.API.dll"]