fix(infra): add RuntimeIdentifier and runtime flags for Docker Linux build

- Add <RuntimeIdentifier>linux-x64</RuntimeIdentifier> to csproj
- Add --runtime linux-x64 to dotnet restore
- Add --runtime linux-x64 to dotnet build
- Add --runtime linux-x64 to dotnet publish

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

GermanApp/Dockerfile

@@ -9,14 +9,14 @@
 FROM mcr.microsoft.com/dotnet/sdk:9.0 AS build
 WORKDIR /src
 
-# Copy project file and restore dependencies
+# Copy project file and restore dependencies for Linux-x64
 COPY ["GermanApp.csproj", "."]
-RUN dotnet restore "GermanApp.csproj"
+RUN dotnet restore "GermanApp.csproj" --runtime linux-x64
 
 # Copy everything else and build
 COPY . .
 WORKDIR "/src"
-RUN dotnet build "GermanApp.csproj" -c Release -o /app/build
+RUN dotnet build "GermanApp.csproj" -c Release -o /app/build --runtime linux-x64
 
 # Publish the application
 RUN dotnet publish "GermanApp.csproj" -c Release -o /app/publish \

GermanApp/GermanApp.csproj

@@ -2,6 +2,7 @@
 
   <PropertyGroup>
     <TargetFramework>net9.0</TargetFramework>
+    <RuntimeIdentifier>linux-x64</RuntimeIdentifier>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>