Refactor Dockerfile and entrypoint script: streamline .NET installation process in Wine and enhance Wine prefix initialization

Dockerfile

@@ -27,6 +27,28 @@ RUN         dpkg --add-architecture i386 \
             && apt clean \
             && rm -rf /var/lib/apt/lists/*
 
+# Setup Wine environment for .NET installation
+ENV         WINEARCH=win64
+ENV         WINEPREFIX=/opt/wine
+ENV         DISPLAY=:99.0
+ENV         WINEDLLOVERRIDES="mscoree,mshtml="
+
+# Initialize Wine and install .NET for Windows
+RUN         mkdir -p /tmp/.X11-unix \
+            && chmod 1777 /tmp/.X11-unix \
+            && Xvfb :99 -screen 0 1024x768x16 -ac & \
+            && sleep 3 \
+            && timeout 60 wine wineboot --init \
+            && sleep 5 \
+            && cd /tmp \
+            && wget -q https://download.microsoft.com/download/6/6/1/661c9a9c-9c54-4f8b-b1c6-89d88c0f3d68/dotnet-runtime-9.0.6-win-x64.exe \
+            && timeout 180 wine dotnet-runtime-9.0.6-win-x64.exe /quiet /install \
+            && wget -q https://builds.dotnet.microsoft.com/dotnet/Sdk/9.0.301/dotnet-sdk-9.0.301-win-x64.exe \
+            && timeout 180 wine dotnet-sdk-9.0.301-win-x64.exe /quiet /install \
+            && rm -f *.exe \
+            && pkill Xvfb \
+            && chown -R container:container /opt/wine
+
 USER        container
 ENV         USER=container HOME=/home/container
 
@@ -36,6 +58,10 @@ ENV         WINEPREFIX=/home/container/.wine
 ENV         DISPLAY=:99.0
 ENV         WINEDLLOVERRIDES="mscoree,mshtml="
 
+# Copy the pre-configured Wine prefix to user directory
+RUN         cp -r /opt/wine /home/container/.wine \
+            && chown -R container:container /home/container/.wine
+
 WORKDIR     /home/container
 
 STOPSIGNAL SIGINT