feat(Dockerfile): add Dockerfile to containerize the .NET application

chore(Blizzless.csproj): update project configuration to support multiple runtime identifiers for better cross-platform compatibility

Dockerfile

@@ -0,0 +1,25 @@
+# Use the official .NET SDK image to build the application
+FROM mcr.microsoft.com/dotnet/sdk:7.0 AS build
+WORKDIR /app
+
+# Copy the project file and restore dependencies
+COPY ["src/DiIiS-NA/Blizzless.csproj", "src/DiIiS-NA/"]
+RUN dotnet restore "src/DiIiS-NA/Blizzless.csproj"
+
+# Copy the rest of the project files and build the application
+COPY ["src/", "src/"]
+WORKDIR "/app/src/DiIiS-NA"
+RUN dotnet build "Blizzless.csproj" -c Release --runtime linux-x64 -o /app/publish
+
+# Use the official .NET runtime image to run the application
+FROM mcr.microsoft.com/dotnet/aspnet:7.0 AS runtime
+WORKDIR /app
+
+# Copy the published application from the build stage
+COPY --from=build /app/publish .
+
+# Expose the port your application is running on (if needed)
+EXPOSE 5000
+
+# Start the application
+ENTRYPOINT ["./Blizzless"]

src/DiIiS-NA/Blizzless.csproj

@@ -11,6 +11,7 @@
     <StartupObject>DiIiS_NA.Program</StartupObject>
     <DebugType>full</DebugType>
     <Configurations>Debug;Release;github</Configurations>
+    <RuntimeIdentifiers>win-x64;linux-x64</RuntimeIdentifiers>
   </PropertyGroup>
   
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">