Fix: add libman restore to Dockerfile for client-side libraries

Bootstrap CSS/JS and jQuery were gitignored (wwwroot/lib/) so they
were missing from Docker builds, causing all dropdown menus and
styling to break on the deployed version.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

MoneyMap/Dockerfile

@@ -6,8 +6,13 @@ WORKDIR /src
 COPY MoneyMap.csproj .
 RUN dotnet restore
 
+# Install libman CLI for client-side library restore
+RUN dotnet tool install -g Microsoft.Web.LibraryManager.Cli
+ENV PATH="${PATH}:/root/.dotnet/tools"
+
 # Copy everything else and build
 COPY . .
+RUN libman restore
 RUN dotnet publish -c Release -o /app/publish
 
 # Runtime stage