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

MoneyMap/Pages/Index.cshtml

@@ -117,6 +117,8 @@
     </div>
 </div>
 <div class="row g-3 my-2">
+    @if (Model.TopCategories.Count > 1)
+    {
     <div class="col-lg-6">
         <div class="card shadow-sm h-100">
             <div class="card-header">Spending by category (last 90 days)</div>
@@ -125,7 +127,8 @@
             </div>
         </div>
     </div>
-    <div class="col-lg-6">
+    }
+    <div class="@(Model.TopCategories.Count > 1 ? "col-lg-6" : "col-lg-12")">
         <div class="card shadow-sm h-100">
             <div class="card-header">Net cash flow (last 30 days)</div>
             <div class="card-body">
@@ -206,7 +209,7 @@
     </div>
 }
 
-@if (Model.TopCategories.Any())
+@if (Model.TopCategories.Count > 1)
 {
     <div class="card shadow-sm mb-3">
         <div class="card-header">